JOURNAL OF RARE EARTHS (Special Issue)

Proceedings of the2nd International Conference onRare Earth Development andApplicationVol.1

Beijing, ChinaMay 27-31, 1991The Chinese Society of Rare Earths HANNOV£:R

Edited by

Xu GuangxianProf, and Director of Inorganic Chemistry Division

Beijng University

Xiao JimeiProf, and Chairman of Department of Metal Physics

University of Science and Technology Beijing

Yu Zongsen

Prof, of Minsitry of the Metallurgy Industry

Chen MinboProf, of Shanghai Institute of Organic Chemistry

Academia Sinica

International Academic PublishersA Pergamon-CNPIEC Joint Venture

CONTENTS

Foreword '. v

Welcoming Speech vii

Section A RE Chemistry

Coordination Chemistry

The Luminescence of Europium with /?-Dicarbonilic Ligands and its Analytical ApplicationN.A. Tishchenko, V.V. Tishchenko, G.I. Gerasimenko, A.I. Markina 3

Spectxophotometric and Potentiometric Study of Binary and Ternary Complexes ofRare Earth Metals IonsCIII) with Spadns and NTA or EDTA as Primary Ligands

Puzikov E.A., Khmylcv I.V., Pyartman A.K 4

The Hard Base [C1OJ as Tridendate Ligand in Anhydrous Complexes of Lanthanide IonsFrederic Favicr and Jean-Louis Pascal 7

Preparation and Structural Characterization of Lanthanum Hydroxide Dihydrogen DiphthalateMonohydrate

Jutang Sun, Songnian Yao, Xiuzhen Du, Shengyun Chen 11

Synthesis and Structure Studies of A Novel Tetranuclear Complex,

Delong Zhang, Qi Shen, Yonghua Lin, Chun—Hui Huang, Guang—Xian Xu 15

Relationship Between the Structures of Monoalkyl t-Butylphosphonates and TheirExtraction Behaviours on Yb(III), Lu(III)

Ye Weizhen, Xu Qingren, Shen Dingzhang 19

Research on Separation of Rare Earths by Cation Exchange FibreLunyan He, Changming Yang, Ziyin Gu, Pinggui Hu, Sinan Wang, Xiaoyan Jiao 22

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Pr and Nd Perchlorate Complexes with Meso— and Recbis (Phenylsulfinyl) EthaneZhang Ruohua, Liu Qunying 27

Infared Spectra and X-ray Photoelectron Spectra of the LanthanideComplexes with Diethyl Sulfoxide

Lui Jinxin, Zhang Liying, Sun Yuanhong 33

Synthesis and Magnetism of Binuclear Pr(Iir)-Pr(III) and Gd(IH)-Gd(III) ComplexesUsing the Dianions of Chloranilic Acids as Bridging Ligands

Jiang Zonghui, Liu Zongming, Liao Daizheng, Wang Genglin 36

The Study of l-phenyl-3-methyl-4-benzoyl-5-phrazolone (PMBP) Complex of Tb4+

Pang Lun, Chen Jinming, Chen Ronglian 41

Separation of Rare Earths from Zinc, Calcium, and Magnesium with P507 Levextrel ResinLiang Yuanming, Liu Zhanliang, Lin Miaojia, Huang Yulin • 45

Sensitized Luminescence Properties and Stability Constants oflndole Derivatives-Terbium (III) Complexes

Lei Hengyi, Yang Yansheng 48

Study on Electronic Structure and Bonding of Rare Earth Phthalocyanine ComplexesLi Zhenxiang, Ni Jiazan 51

Crystal and Molecular Structure of a Cryptate H2Yb(NCS)3(NO3)2(2,2,2) • H2OLi Yuejun, Zhu Qixiu, Xu Zhenhua, Xu Guangxian, I.S. ButterHan Yuzhen, Ma Jiesheng 53

Evidence for Long—Distance Bonding Interaction Around the Pr(III) Atom; X—ray Structure of theTetranuclcar Pr(IH) Complex, [Pr^-OH^Gia-ClkGi-CO^CS^fTHF^fHjO)^ • 2THF

Xu Duanjun, Liu Wentian, Lin Yingzhang, Wu Jinguang,Xu Guangxian, Nobutami Kasai 57

Study on Ternary Complexes of Rare Earth with Mixed Ligands V. Synthesis, Characterization andBioactivity of Indole-3-Propanoic Acid(IPA)-O-Phenanthroline (Phen)-Rare Earth (RE)Ternary Complexes

Wang Liufang, Chen Zhonglin, Wu Jigui, Wang Qi, Jiang Zhicheng, Zhang Bin 60

Synthesis, Characterization and Crystal Structure of Undeca—Coordinated Complexesof Lighter Lanthanide Nitrates with Tetraglycolic Bis(P-Methoxyanilide)

Tan Minyu, Gan Xinmin, Liang Zhijan, Tang Ning, Zhou Zhongyuan, Tan Ganzu 62

The Structural Study of Lanthanide Complex with Nicotinicacid in Aqueous Solutionby Induced Relaxation Ratiomethod

Liu Qingliang, Yu Huaming, Lu Fci, Xie Boping 65

Luminescence and Energy Transfer of Complexes of Ln(III) with Three IndoleDerivative /}-diketones

Wu Shilling, Yang Yensen 68

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Rare Earth Complexes of Polyaza Polycarboxylic Macrocycle(II) Syntheseis andCrystalStructure of Dysprosium Complex of 1—OXA —4,7,10-Triazacyclododecane—N, N', N"—Triacetic Acid

Jin Tianzhu, Zheng Zhiping, Xu Guangxian, Lin Xiuyun, Han Yuzhen 73

Solid Chemistry and Bioinorganic Chemistry

Magnetic and Valence Behaviour of Yb and Eu Ions in the Compounds and AlloysSynthesized Under High Pressure

A.V. Tsvyashchenko 77

Influence of Pressure on the Formation of the New Ternary Laves Compounds in the RE-3dTransition Metal Systems and Magnetic Properties Some of the Compounds

L.N. Fomicheva 84

Magnitude of Tetrad - Effect: A Probable Dependence on Ligand CharacteristicsS.N. Limaye, A.A. Kopyrin, M.C. Saxena 88

Crystal Field Analysis of Eu31 Doped Lanthanum Oxyfluoride, LaOF : Eu3+

Jorma Holsa 91

Evolution of Crystal Field Effects in Reoci SeriesE. Antic-Fidancev, J. Holso, M. Lemaitre-Blaise, P. Porcher 95

Rare Earth Disulfides — A New Group of Layered CompoundsT. Shilkina, I. Vasilyeva 99

Preparation and Characterisation of Single Crystals of RE Alloys and CompoundsY.J. Bi, J.S. Abell, D. Fort 100

Electrosynthesis of Some Rare Earth Metal Thin Films from Aqueous BathsCD. Lokhande, R.D. Madhale I l l

Xanes Study of Valence Fluctuation in Sm^Eu^S SystemR.K. Singhal, K.B. Garg 112

Magnetization and X-ray Studies on YFejH,Kazuo Kanematsu 116

X-ray, Magnetization and Mossbauer Studies of PuNi3 Type Compounds Y^Zr^Fc^and Their Hydrides

Kazuo Itoh, Kazuo Kanematsu 120

Studies on Isonicotinoyl Dithiocarbazate Complexes of Rare EarthsSunita Narswani, Narender K. Kaushik 124

Temperature Dependence of Electrical Conductivity in Li0$_x/2ZnxFe1J_x/2O4 FerritesD. Ravinder 1 3°

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Electrophoretic Investigations of Hydrolysis and Formation of FluorideComplexes of Carrier— Free 155Eu

D. Schumann, A.F. Novgorodov, V.A. Khalkin 134

Cathodoluminescence of RE Optical CrystalsZamoryanskaya M,V 138

Quantum—Chemical Studies of Active Centre Models in Butadiene Polymerizationwith Nd-Al Catalysts

Z.M. Sabirov 140

Interaction of Lanthanum with Montmorillonite at Temperatures Up to 7001J.M. Trillo, M.D. Alba, M.A. Castro, A. Munoz, J. Poyato, M.M. Tobias 142

RE as a Probe of the Ordering Degree of Solid SolutionsN.N. Zlotnikova, N.V. Melnichenko, N.P. Efryushina 151

The Effect of Rare-Earth Elements on the Electron Structure of Bi2_xGd,,Ru2O7 andBi^NdjRujO,: Study by XPS and X-ray Spectroscopy.

G.F. Khudorozhko, E.A. Kravtzova, L.N. Mazalov, I.P. Asanov, G.K. Parygina 152

Studies on the Interactions Between Baicalin and La(III), Nd(III), Sm(IU.) or Yb(III)Fang Yu, Hu Daodao, Tang Jiayi, Zhu Wenqing and Sun Zuomin 156

The Influence of Rare Earth Dopant on the Properties of NdP5O)4 CrystalLi Baoxiang, Yu Yaqin 160

Study on the Properties of Perovskite Type Rare Earth Gallates CrystalsVang Jianmei, Su Qiang, Wang Hongyan 164

Study on Coordination of Rare Earth with L—Methionine by Potentiometry and CalorimetryGao Feng, Niu Chunji, Ni Jiazuan 167

Synthesis and Luminescence of Eu(DMBM)2 • bipy • NO3

Wang Mingzhao, Jin Linpei, Huang Shihua, Qin Weiping 170

The Influence of Electronic Configuration of Metallic Ion on the Electric Propertiesof Rare Earth Complex Oxides

Ren Yufang 173

Raman and IR Studies on Na5Eu(MoO4)4, NasEu(MoO4)4 and NaEu(MoO4)2

Guo Changxin, Li Bilin 177

XPS Studies of Rare Earth Chloride Complexes with Oxidized GlutathioneZhang Shugong, Niu Chunji, Ni Jiazuan 181

The Syntheses and Structure of AEuI3(A = Rb, Cs)Cao Baopcng, Su Dong, Zhao Xinhua, Wang Shihua 184

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Poisson's Ratio Limits and Effects of Hydrostatic Pressure on the Elastic Behaviour ofSm,_xYxS Alloys in the Intermediate Valence State

Tu Hailing, G. A. Saunders, H. Bach, S. Methfessel 186

About Difference of Sm Valency in Sm,., MXB6 (M = Ba.Eu) Given by LatticeParameter Variation and X—ray Absorption

N.N. Yefremova, L.D. Finkelshtein 196

Preparation and Photoelectrical Properties of (GeS),_x(Nd2S3)x Single CrystalsB.G. Tagiev, G.M. Niftiev, G.B. Gasymov, M.I. Murguzov, A.S. Alekperov 199

Neodymium Spectra in Lanthanum—Gallium SesquisulfideGunduz M. Niftiev, Bahadur G. Tagiev, Firuz B. Askerov, Valerij M. Markushev,Vladislav Th. Zolin, Gjadiminas Y. Dubauskas 203

Effect of Active Center Concentration on Absorption Spectra of Pr3+ in Tetraphosphate CrystalsW. Strek, M. Galczynski 206

Effect of Chemical Environment on the Magnitude of X—ray Resonance Absorptionat L Edges of Heavy Earths

N.K. Garg, Galav Shah, C.K. Upadhyaya, S.V.Gupta 209

Crystal StructureI.R.Amiraslanov, Yu.G. Yusifov, G.G. Guseinov 213

Molten Solt Chemistry and Physical Chemistry

Physico-Chemical Investigation and Perspective of Practical Application of CeO2-PrO2

LA. Smirnov, K.G. Gartsman, T.B. Zhukova, N.F. Kartenko, S.A. Kizhaev,B.T. Melekh, S.V. Nikitin, Y.N. Filin, A.I. Shelykh 217

Physico-Chemical Investigations of the Bromides and the Iodides of the LanthanidesDudareva A.G 229

Equilibrium Dissociation Pressures in the System SmH2—SmH3

Longmei Wang, K. Conder, E. Kaldis 230

Determination of Complex Stability Constants of Lanthanides witha - Hydroxy - a - Methylbutyrate

D. Schumann, M. Vobecky 234

Temperature Dependence of Elastic Constants in Rare Earth ChalcogenidesChul Koo Kim, Tae Song Kwon, Kyun Nahm 237

Niobium Surface Modification by Lanthanum in Salt MeltsA. Glagolevskaya, S. Kuznetsov, E. Polyakov, P. Stangrit 240

Nonstoichiometry and Phase Transition of BaSm2Mn2O7

N. Kamegashira, S. Umeno 242

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Kinetic Parameters for the Hydrogenation of Formic Acid Over Lu-Promoted RhodiumCatalysts Obtained by Drifts

Jose J. Benitez, Rafael Alvero, Jose M. Trillo, Jose A. OdriozolaIgnacio Carrizosa 246

Spectroscopy of Tangstates, Niobates and Tantalates of Lanthanides with a Fluorith StructureV.M. Markushev, S.N. Vetkina, V.P. Sirotinkin, A.A. Evdokimov 251

Dynamic Models for Prediction of Physico—Chemical Properties of TernaryChalcogenides of Rare-Earths

Kutolin S.A., Muler P.B., Gadzhiev S.M., Aliev F.G., Mamedova L.A 253

The Effects of RE Oxide-Slag Added to Charges on the Quality of Cupola Liquid IronWu Bingyao, Su Huaqin, Wu Qiang, Jiang Jianzhong, Yin Yanshong, Wu Yuning 260

The Surface Tension of Liquid RE Containing Aluminium Alloy and Its Wettibility andAdhesive Power on Model Wall

Wang Tianxiang, Chen Xiawen, Chen Tong 265

Thermodynamic Properties of Al-Ce-S and Al-Cu-Ce Liquid SolutionsSun Yunyong, Wang Longmei, Du Ting 269

Thermodynamic Properties of Cu-Ce-S, Cu-Y-S Liquid SolutionsLi Guodong, Du Ting 273

Dispersion Strengthening of Zn-Al Based Cast Alloy by Spraying Rare Earth Oxide ParticlesNiu Yinyi, Liu Changming, Zou Gang 276

A Study on Phase Diagrams and Thermodynamic Properties of Systems Containing RareEarth Chlorides

Qiao Zhiyu 2 8 2

The Study of Electro-Deposition of Yttrium on Molybdenum and Nickel Electrode byUsing Cyclic Voltammetry

S. Duan, C. Zhou, Z.Y. Qiao, Q. Zhai 2 8 7

Calculations of Angular Overlap Parameters for Eu3+ Ions in KY3F10. YPO4

and YVO4 CrystalsWu Zhijan, Zhang Siyuan 2 9

A Study on the Structure and Properties of Ag-La AlloyMaYuxiang,ShiLu,ChenDejun,ChenZhujm 295

Thermochemical and Thermodynamic Studies of Lafl^Al,.,),, AlloysXu Xiuguang, Li Guangqiang, Yu Hualong, Wang Changzhen 300

The Thermodynamics of the RE(Nd,Pr,Sm)-O-F Systems ^

Hong Yanruo, D.A.R. Kay "

Judging a Binary Phase Diagram Containing RE and Calculation of Thermodynamic

Properties of RE Compound , j jSun Guiru, Li Wenchao, Wang Jian, Li Xinkuan

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Microdistribution and Function of Ce in Al—Si AlloyDang Ping, Han Qiyong, Du Weixi 317

A Study of Influence on Al—Mg-Si Alloy by Addition of LanthanumWang Shaoling, Zhou Xiaoping, Yu Yingmei 320

Influence of RE on Wear-Resistance of Alloy ZA 27Xiang Hongyao, Gong Benkui, Ma Hengyu, Zuo Huimin, Zhou Guanghui 325

High Strength Yttrium—Bearing Magnesium Alloy MB26Lu Liqi, Wei Guo 330

Determination of Phase Equilibria of Intermediate Compounds in Ternary SystemsLi Xingkang, Li Wenchao, Wang Jian, Chou Kuochin 335

The Effect of Cerium on Wettability of A12O3 / Al-4.5Cu AlloyLiu Yaohui, He Zhenming, Yu Sirong, Dong Guitian, Li Qingchun 340

Hole Burning, Erasing and Thermal Filling in Sr0 5Mgo^FCl, 5Br0 5 : Sm2+ MixedCrystal at Liquid Nitrogen Temperature

Mu Shi jn, Yu Jiaqi, Huang Shihua 344

Investigation of Preparation and Crystal Chemistry of Autocatalyst LaCu05Mn0 5O3

Le Van Huan 347

Analytical Chemistry

Determination of Rare Earth Impurities in Terbium by HPLC / ICP-MSYasushi Nakamura, Yoshio Kobayashi 351

Sorption-Luminescent Determination of Samarium and Europium in High PureLanthanide Oxides

S.V. Beltyukova, G.M. Balamtsarashvili, T.B. Kravchenko 355

Determination of Lanthanum, Yttrium and Copper in the High T c Superconductor (HTS)-Ceramic by Amperometric Titration

N.A. Ezerskaya, I.N. Kiseleva, M.V. Afanas'eva, N.K. Bclsky, L.I. Ochertyanova 357

Luminescent Determination of Europium in Extra Pure Scandium OxideE.R. Gubanova, N.P. Efryushina 3 5 9

Spectrophotometric Determination of Cerium, Praseodymium and Ytterbium in

Phosphoric Acid Complex SolutionsV.T. Mischenko, V.A. Perfiliev 3 6°

Combined Methods for Determination of Yttrium, Zirconium and Cerium in

Non-Ferroud AlloysLobanov F.I., Logunova S.A., Ivanova N.V., Maximcnko E.V 362

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Determination of Non-REE Impurities in 15 Individual Pure Rare Earth Oxides byChemical Spectrographic Method

Zhang Xianlu 363

Studies on Energy Levels of Rare Earth Elements by Photoacoustic SpectroscopySu Qingde, Zhao Guiwen 366

Studies on Rare Earth Elements by Photoacoustic SpectroscopyZhao Guiwen, Su Qingde, Wu Jiaqi, Shao Xueguang 371

Study on the Acquirement of Single Rare-Earth Element Using Radi oisotope X-rayFlourescence Spectrum Line Analysis Method

Li Zengqiang, Wu Wenqi 374

The Determination of Eu and Tb in Gd2O3 with Derivateve Spectrophotofluorimetryand Internal Standard Method

LiuWenhua 379

Section B RE Resources and Metallurgy

RE Separation, Extraction Chemistry, Mathematical Modeling, Hydrometallurgyand Equipment

The Simplex Method to Describe of the Technological ProcessesIlya N. Beloglazov 385

Separation Factors Between Adjacent Rare Earths Extracted from a Mixed Rare EarthChloride Solution Using 'Ionquest' 801 (2—Ethylhexylphosphonic Acid,Mono-2-Ethylhexyl Ester)

B.J. Balint 386

Some Problems on the Solvent Extraction of CeriumTatsuya Sekine 390

Extraction of Rare Earths by Phosphoric Acid EstersToshio Takahashi, Yukari Ishii, Akira Uchiyama, Shoji Takeda,Tetsuyuki Okumachi, Hiroaki Nishizawa, Taichi Sato 396

Chemically Based Model for the Extraction of PrtTII) and Nd(III) with Mixtures ofAcidic Organophosphorus Extractants

P.B. Santhi, M.L.P. Reddy, T.R. Ramamohan, A.D. Damodaran 400

Solvent Extraction of Rare-Earth Elements from Hydrochloric Acid Solutionsby Di-(2-Ethylhexyl)-Phosphoric Acid in the Presence of TrioctylPhosphine Oxide or Pyridine

Taichi Sato, Keiichi Sato . . 409

Extraction of Rare Earths from Apatite RockL.N. Komissarova, P.P. Melnikov, G.Ya. Pushkina, G.V. Zimina,T.N. Glubokova, T.A. Slyvko 413

Separation of Lanthonides from Indastrial SolutionsZebreva A.I., Andreeva N.N., Pasynkova T.A., Sayfullin N.A., Manuilova O.A 415

Mathematical Simulation for the Counter Current Extraction of Separating Nd and Smwith HDEHP

Huang Wenmei, Xue Qifeng, Shen Yunyu, Ya Wenhou 416

A Study on Extraction of Nd(III) with Solid Supported Liquid Membrane ContainingHEH(EHP)

Li Biaoguo, Huo Zichun, Liu Yanmin, Xu Guanxian, Zhu Guobin 420

The Application of Multicomparment— Settler Extractor to Rare Earth SeparationFuZizhong 425

Intraparticle Diffusion of Rare Earths in Porous Cation ExchangersLing Daren, Zheng Zuying, Chang Shengdong, Dan Guiping 427

Study on the Extraction of Rare Earth Salicylate by Primary Amine N1923Li Yongxiu, Ni Zhaoai 431

Influence of Primary Amine N1923 and Thiocyanate on the Kinetics of Erbium(III)Extraction from Hydrochloric Acid Solutions by HEH / EHP

Sun Ducheng, Li Deqian 434

A New Fractional Extraction Process "FB Method" and its Simulation and Applicationin Rare Earth Separation

Zheng Zhong, Liu Zhaogang, Wang Wenlian, Song Hongfang 438

The Model for the Extraction Equilibrium of NdCl3-SmCl3-HCI-HDEHP-Kerosine SystemXue Qifeng, Shen Yunyu, Ya Wenhou 442

Extraction of Scandium, Europium, Samarium from Waste of Coal IndustryV. Strelkov, N. Chizhov, Y. Kudryavsky, V.Gorshkov 445

Preparation of Metals, Alloys and RE Compounds

Synthesis and Properties of Hydroborates of Rere—Earth MetalsU. Mirsaidov, A. Kurbonbekov, M. Hikmatov, A. Badalov 447

Synthesis and Properties of Dicarbolides of Rare-Earth MetalsU. Mirsaidov, M. Hikmatov, A. Badalov 449

Synthesis of Organolanthanide Hydride Containing an Intramolecular CoordinationBond and X-ray Crystal Structure of Yttrium Hydride Complex

Qian Changtao, Deng Daoli, Xie Zuowei, Zheng Peijiu, Wu Guang 451

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A Comparison Study on LaNis-H2 and LaNi3—H2 SystemsZhao Jianmin, Yang Kaidi, Liu Yuju, Huang Tao, Dai Chunhua 454

Separation of Zirconium in Preparation of High Purity Scandium OxideZhang Pingwei, You Shutong, Zhang Li, Feng Song, Hou Songshou 458

Preparation and Properties of Monodispersed Colloidal Particles of Neodium CompoundsDeng Hongmei, Xu Yan, Gu Yidong 462

The Extraction of Pr Metal by Electrolysis of Molten Chloride SaltFang Chenghou, Deng Rufu 465

A Study of the Technology for Producing Dysprosium and Gadolinium MetalsLi Zuoshun, Yang Guanglu, Lu Qihu 468

Study on Technology of Producing (RE) MgSiFe Alloy with Silico thermic MethodSheng Da, Lin Wei, Huang Huisong 472

A Study on the Zn-Al-RE Alloy Preparation by Using Molten Salt ElectrolysisWei Xujun, Xu Xiuzhi, Feng Falun, Chai Yongcheng 476

The Production of Neodymium Metal by Electrolysis of Neodymium OxideLiu Wenhuai, Han Zhen 480

Geochemistry and Ore Dressing

The Developing of the Rational Technology of the Synchisite Ore ConcentrationChaumdas Ashim, Myagmarjav Basan 484

Regularity Studies on the Separation of Bastnasite from Its Associated MineralsXu Gencan, Wang Jingwei 487

Research of Separating the Two Minerals (One Containing Rare Earths and AnotherContaining Scandium) from Rich Rare Earths of Blast Furnace Slag

Yang Zeqi, Zhang Qing, Zheng Xiapeng, Wang Guiming 492

Beneficiation Technology for BastnaesiteZeng Xinglan, Li Fangji 494

Physicochemical Conditions Affecting the Ytterbium Adsorption by Clays of theWeathering Crust

Zheng Zuoping, Lin Chuanxian 499

Gadolinite and Priorite-Important Industrial MineralsTao Keje , 501

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Environmental Protection

The Effects of Cerium Nitrate on Macrophage PhagocytosisCheng Haichang, Li Daiying, Zhu Rui, Gou Jing 503

Study on the Hygienic Standards of Rare Earth DustsLei Chunwen, Zhao Guangli, Jia Kejun, Zou Shiqu, Zou Tongtong,Ma Fusheng, Xiao Bangliang, Li Qiongying, Zhu Xiaofeng, Teng Aiju 506

A Follow-up Study (1980—1990) on the Relationship Between Thorium Lung Burden andHealth Effects on Miners at the Bayan Obo Mine, China

Chen Xing'an, Xiao Huiju'an, Chen Yong'e, Hao Jingfang,Deng Yunhui, Feng Guodong, Chen Lian, Yang Yingje 508

Section C New RE Materials and Their Applications

HighTc Superconductivity

Comprehensive Chemical Mechanism of High-Tc SuperconductivityL.C. Case, Sc. D 515

Effect of Ce Doping on the Properties of the Electron Superconductor Pr2_xCexCuO4

N. Babushkina, I. Arnold, S. Voinova, I. Kobrin,N. Dobrotvorskaya, N. Kasatkina, Yu. Poltoratsky, V. Sobolev 518

Technology and Properties of High Density Oxide SuperconductorsA.A. Titov, J.V. Antipov, M.I. Levin, M.V. Sakharov, A.D. Shevchenko 519

Thermodynamic Behavior of High-Tc Oxide Systems Via EMF and Related MeasurementsM. Tetenbaum, P. Tumidajski, D.L. Brown, M. Blander 523

ESR Investigation of Superconductor to Metall Transition in La2_J_yErySrxCuO4_4

L. Kan, B. Elschner, St. Elschner 529

Superconductivity and Possible Carrier Localization in YBa2Cu3_xZnxO7_y

S.K. Agarwal, R. Suryanarayanan, O. Gorochov, V.N. Moorthy, A.V. Narlikar 530

Switching on the High-Tc Contaction StructuresBorukhovich A.S 535

The Electronic Structure of 214 Based SuperconductorsV. Crisan, A. Vernes, V. Popescu, D. Kapusi, A. Janosi 540

Barium Copper Sulfides as Possible High Tc Superconducting MaterialsO.V. Andreev, N.N. Parshukov 545

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Preparation of Superconducting Y—Ba—Cu—O Thick Films by Silk Screen Printing-Sintering Technique

Li Changjang 547

In-Situ Growth of YBCO Superconducting Films by Metalorganic Chemical VaporDeposition

X.K. Zhang, W. Tao, G.R. Bai, R. Wang, C.T. Qian, C.Q. Ye, W.K. Zhou 549

Magnetic Materials

Fluorescence Properties of Ce3+—Containing Nafion FilmA. Yamada, K. Hatta, K. Kunimi, T. Arakawa 553

Phase Transformations and Some Aspects of Antiferromagnetic State in PureRare-Earth Metals and Their Binary Alloys

A.G. Blinov, L.A. Boyarsky, G.S. Burkhanov, N.B. Koltchugina, O.D. Tchistyakov 556

Magnetic and Nuclear Hyperfine Effects in Thulium DiglycollateS. Bhattacharyya, A. Sengupta, D. Ghosh 559

Comparison of the Magnetic Properties of RCo2Si2 and RCoSi2 CompoundsAndrzej Szytula 563

Structural and Magnetic Properties of the Rare Earth—Iron—Nitrogen IntermetallicCompounds

Ying—Chang Yang, Ji—Lian Yang 567

Magnetic Properties of the Ternary Carbides Y2(Fe,Co)17C0 5 AlloysGeng Mingming, Ma Ruzhang, Zheng Lingjun, Pan Shuming 573

Studies on the Electrical and Magnetical Properties for LaSr2_xCaxV3O9± Y

Meng Jian, Ren Yufang 577

Magnetic Check ValveYang Fengyu, Li Guokun 581

Hydrogen Absorption and Desorption Properties of the Permanent Magnet AlloyNd15Fe77B8

X.Z. Zhang, C.P. Chen, Y.M. Wu, Z. Ye, J. Wu, Q.D. Wang, T.G. Qian 585

Magnetic Properties of the Electron—Doped Compounds R2_xCexCuO4

(R = Pr, Nd, Sm and Eu)Chin Lin, Zun Xiaoliu, Jian Lan, Yu Fenzhang 590

Magnetic Properties of Sm2(CoFeCuZr)17 Permanent Magnet AlloyHuang Fugui, Li Dong, Lu Qichun 593

Hot-Pressed Magnet of Melt-Spun Nd-Fe-B AlloyG.X. Huang, S.F. Yu, W.M. Gao 597

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The Coercivity of the Sintered NdFeB MagnetsZhou Shouzeng, Tang Weizhong, Wang Run 601

Magnetic Properties and Crystallization Behavior of Amorphous (Fe^Ni,,)^ 5Nd4B18 5 AlloysZhang Jun—xian, Shen Bao—gen, Yang Lin—yuan, Zhan Wen—shan 609

New Rare-Earth Magnetic MateriaYonghong Xiong, Caoshui Xiong, Wensheng Miao, Guolan Guo,Tianfu Sun, Jianzhong Jiang, Meiqing Huang 614

High Field Susceptibility of Y2Fe14B!_xCx CompoundsZhao Zhi-gang, X.K. Sun, Y.C. Chuang 617

On Corrosion Failure of Nd—Fe—B MagnetsX.K. Sun, H.Q. Wang, C.L. Xiao, D.Y. Geng, L. Gao, Y.C. Chuang 621

The Study of Nd-Fe-B Permanent Magnets with High Energy ProductLi Wei, Li Po, Yu Xiaojun, Mei Liqun 625

Effect of Si and Al on the Coercivity of Nd-Dy-Fe-Co-B Sintered Magnets byReduction Diffusion

W. Pan, R.J. Shuai, J.P. Zu 632

Magnetic and Structural Investigation of Rapidly Microcrystallized AmorphousNd-Fe-B Alloys

Zhitao Diao, Shogo Kurita, Kenji Narita 636

Magnetic Properties of ErFe10V2> ErMn10V2 and ErFe5Mn5V2

R.J. Begum, P. Raj, S.K. Paranjpe, P. Suryanarayanan, L.C. Gupta 642

Hydrogen Storage Materials and Functional Materials

Investigation of NaLaS2 Type MaterialsL.N. Trushnikova, M.V. Saweljeva, V.V. Sokolov 644

Dielectric Materials Containing Rare Earth — Copper PhosphatesP.P. Melnikov, D.A. Voronchikhin, L.N. Komissarova, Sh.B. Ibrahimov,E.G. Zaugolnikova 645

Research and Application of Magnetooptic Materials of (BiPrGdYb)3(FeAl)5O,2Single Crystal Films

Liu Xianglin, Ruan Yuanji, Wang Hongxiang, Du Sanqing, Xu Meidi, Feng Jingzhang 647

The Effect of Rare Earth on Anisotropy of Lead Titanate CeramicsLi Hongjun, Pan Xiaoming, Yu Xiaodong 652

A Study of Super Magnetostrictive MaterialsKuang Mahua, Zhang Hongping, Du Ting 655

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Transport Properties of Electron in Y-Doped A-Si and Probable ApplicationsCheng Xingkui, Ma Honglei, Dai Guocai 658

Investigation on the Gas Sensing Properties of Ceo 9sCao05F2 95 Solid ElectrolyteWu Mingmei, Ren Yufang 663

Effect of Mischmetal Alloy on the Activation of TiFe (Zr or Cr) Hydrogen-Storing MaterialsZhang H.Y., Chen J.Y., Ping X.Y., Jiang J 667

Investigation of the Structure, Gas Sensing and Low Temperature ConductingProperties of La05Sr05COO3

Chang Yingfang, Ren Yufang 673

A Good Hydrogen Storage Alloy Pair for Space Heating and Air ConditioningC.P. Chen, Z. Ye, Y.Q. Lei, J. Wu, Q.D. Wang 677

Preparation of Nd-SiO2 Coating Films by Sol-Gel MethodHong Guangyan, Sumio Sakka 681

The Magnetostriction of PolycrystallineJiang Zhihong, Liu Xianglin, Jin Suigen 684

Studies on the Preparation, Crystalline Structure and Sensitivity Behavior of LaOFGu Xin, Wang Yuguang, Chang Zhongtai 688

Fluorescent Properties of Beta"-Alumina Activated by Divalent EuropiumWen Zhaoyin, Lin Zuxiang, Tian Shunbao 692

The Multicomponent Mischmetal Alloys Used for Hydrogen Compression andHydride Electrode

Chen Changpin, Lei Yongquan, Ye Zhou, Li Zhoupeng, Wu Jing, Wang Qidong 696

Rare Earth Metal Hydride Heat PumpYang Kaidi, Dai Chunhua, Huang Tao, Bao Deyou 701

The Electrical Behaviours of BaCeO3 and SrCeO3 Doped with Yb, Y, Gd, and La inHydrogen and Water Vapor Atmospheres

Xu Zhihong, Wen Tinglian 705

Materials of Luminescence, Phosphors and Lasers

Luminescence of Eu2+ Poly Crown Ether ComplexesGin-ya Adachi, Nobuyuki Higashiyama 711

Effects of Zn2+ on Luminescence Properties of EuI+ Poly Crown Ether ComplexesNobuyuki Higashiyama, Gin—ya Adachi 717

Rare Earth Double Phosphates: Solid State Syntheses and Luminescent PropertiesOsvaldo A. Serra, G. Zapparoli, Rosemeire M. Campos, Ieda L.V. Rosa 721

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Luminescence Spectroscopic Study of La3+ / Eu3+ Ion-Exchange Y-ZeoliteOsvaldo A. Serra, Ieda L.V. Rosa, Eduardo F. Souza-Aguiar 725

Effects of Traces of Tb3+ on Electroluminescence of BaSO4 '. Dy PhosphorsJ.D. Desai, M.R. Mulla 729

Some Properties of BaFBr : Eu PhosphorsA.M. Gurvich, M.G. Myagkova, Yu. Rudiger, A.N. Belskiy,LA. Kamenskikh, V.V. Mikhailin, M.A. Terekhin 730

On the Phosphorescence Studies of Cerium and Samarium Doped BaSD.R. Rao, S.A.K. Reddy 733

Luminescent Materials on the Base of Ba2SiO4 Activated with Dy3+ and Mn2+

O.A. Shamshurina, N.P. Efryushina, E.A. Zhikhareva 737

Materials of Luminescence on RE BasisSh, Ibragimov, E. Saugolnikova, N. Mavlanov, P. Melnikov, L. Komissarova 738

Photostimulated Luminescence of Rare Earth Doped PhosphorsMian-Zeng Su 740

Photon Gated Hole Burning of Sm2+ in BaFCLBr,_x SystemYu Jiaqi, Huang Shihua, Zhang Jiahua, Mu Sijn, Zha Binbing,Wang Xiangjun, Qin Weipin 744

The Sensitization of Dy3+ Luminescence by Ce3* and Gd3+ in Magnesium BorateGuo Fengyu, Cheng Hong, Chen Xiaobo 749

Luminescence of CeH and Sm3+ in M3Ln2(BO3)4 (M = Ca, Sr, Ba; Ln = Gd, Y)Pei Zhiwu, Su Qiang, Cui Yongsheng 751

The Spectrochemistry of Abnormal Valency Rare Earth Ions — The RelationshipBetween Spectral Structure of Divalent RE Ions and Some Chemical Factors

Shi Chunshan, Ye Zeren, Sun Jiayao, Man Shiqing, Cao Zhicheng, Zhang Renhua 755

UV Luminescence and Color Center in BaFCl: Eu2+ PhosphorsXiong Guangnan, Wang Yongsheng, Chen Lichun, Zhao Zhihuong, Xu Xurong 759

Chemical Factors Influencing Eu3* Luminescence in LnVO4 I EuYu Yaqin, Li Mei 762

Optical Electronegativity of Lanthanide IonsSu Qiang 765

Colour Measuring of Line Spectrum of Rare Earth Doped PhosphorsGao Guangtian, Sun Tiezheng, Gao Shan, Liu Xingren 770

Fluorescence Properties of Tb Diacetonc Complexes in PVB Polymer FilmLi Weili, Li Wenlian, Tang Mingdao, Wang Qingrong 776

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Preparation and Luminescence Properties of CaS : Ce3+, CaS '. Cu+ and CaS : Ce3+,Cu+ Phosphors

Zhang Zhongyi, Su Qiang, Lu Yuhua 778

Growth and Spectra of CexDy1_xP3O14 CrystalsHong Guangyan, Liao Yongzhong, Yu Decai, Wang Wenyun, Li Youmo 782

Concentration Dependence of Eu2+ Emissions in BaCl2 • Eu2+

Shi Chaoshu, Lu Xiaopu, Hou Bihui, Bai Shanyan, Song Zitai ' 786

The Two Types of Emission of Sm^in SrB4O7

He Zhiyi, Hao Zhiran 789

Energy Transfer From Mn To Tm Ions in ZnS at High PressureXu Wu, Zhang Xinyi, Xu Xurong 791

The Luminescence Properties of EuLaGa3S7 CrystalsS.M. Musaeva, M.I. Murguzov, O.B. Tagiev 794

RE Applications in Glassess and Ceramics

Systems As-Ln2S3, Phase Diagrams, Sulfide Optical CeramicsO.V. Andreev, A.V. Kertman 797

Corrosion Mechanism of Lanthanum Containing Fluorozirconate Glass in Acidic SolutionBao Shanci, Cheng Jijan 799

Effect of La2O3 on Firing Temperature of Ceramics with High A12O3 ContentKang Luxing 804

A Study on Glass Formation and Optical Property of B2O3-La2O3(Y2O3,Gd2O3)-SiO2 SystemZhang Xiyan, Yang Kuisheng ^08

Preparation of Y2O3 and Y2O3'. Eu Transparent Ceramics by Hot—PressingZhou Ming, Zhao Guiwen 813

A Study on Gel-Derived Luminescent Glass of SrO-Si02 System Doped with Eu3+

Xiao Hong, Li Bin 817

Effect of La2O3 on Properties of TiO2-BaO-SiO2-B2O3 GlassFengying Lin, Hefang Hu, Guanhong Yi, Jitian Feng 820

Characteristic of Absorption Spectra of Nd3+ in Various Base GlassesLu Bingyu, Ren Yufang, Su Qiang, Li Gingsan, Li Baoxiang, Lu Duntian 824

Colouring and Decolourizing of Glass by Rare Earth Elements CompoundsV.A. Fyodorova, E.A. Chugunov 829

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RE Applications in Catalyst

Organolanthanide Catalyzed Specific Polymerization of MM A Realizing ExtremelyNarrow Polydispersity and High—Molecular Weight

Hajhne Yasuda, Hitoshi Yamamoto, Masahiro Yamashita,Yasunori Takemoto, Masahito Furo 831

Europium as an Activator in Oxygen-Dominated PhosphorsVictor G. Krongauz, Evgeny G. Morozov, Aleksander T. Merzlyakov 833

Interaction of Lanthanum with Catalytic Silica SupportsS. Bernal, J.J. Calvino, J.M. Rodriguez-Izquierdo, H. Vidal, J. Castiglioni, R. Kieffer 834

TPD Study of Hydrogen Interaction with a High Surface Area Ceria Supported Rhodium CatalystS. Bernal, J.J. Calvino, G.A. Cifredo, A. Jobacho, J.M. Rodriguez-Izquierdo 838

Catalytic Conversion of Ethylene to Propylene Over Novel Lanthanide Catalysts Depositedfrom Solutions of Eu or Yb in Liquid Ammonia

Hayao Imamura, Tomohiro Konishi 842

Luminescence Material Based on RE MolybdatesN.M. Kozhevnikova, V.P. Korsun, I.I. Mursakhanova, M.V. Mokhosoyev 845

Cerium Chloride—Promoted Unusual Coupling Reactions of Alkenyl Grignard Reagentsand Alkenyllithiums

Tsuneo Imamoto, Toshihiko Hatajima, Koreharu Ogata 850

On the Role of Organoaluminium Cocatalysts in the Process of Diene PolymerizationEffected by Lanthanide Catalytic Systems

Monakov Yu.B., Sabirov Z.M., Rafikov S.R 853

Studies of Platinum Rare Earth Reforming CatalystsLi Fengyi, Zhang Ning 856

Rare Earth Compounds Catalyzed Copolymerization of Styrene and Conjugated DienesI. Some Features of Copolymerization and Characteristics of the Copolymers

Jin Yingtai, Li Gang, Li Xue, Wang Peixin, Pei Fengkui, Wu Yue 860

Synthesis Structure and Catalytic Properties of La2_xSr,NiO4

Zheng Hongyuan, Du Shaobin, Ma Futai, Lu Guanglie 863

Preparations, Properties and Applications of RE-Containing Dealuminated Y ZeoliteZhang Guohong, Chen Xueda, Tong Guangming, Yin Zequn 867

The Deterioration Problem of Catalysts for Auto—Exhaust ControlLiu Changlin, Zheng Qingying 872

Research on Catalytic Properties of the Perovskitc—Type Compounds: Study onthe CO Reaction

Qin Yongning, Zheng Mingquan 876

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RE Applications in Steel, Cast and Nonferrous Metals

Mechanism of Nonmetallic Inclusions Cone Formation in Steel Ingots with REM AdditionsY.N. Malinochka 879

Rare Earth Oxide Additions on the Oxidation and Decarburization of Carbide- Dispersed Iron Base Sintered Alloys

A.U. Malik, Shahreer Ahmad, Sultan Ahmad 880

Production of Aluminium Bonded and Copper Coated Rotary Forged CompactsA. Ahmad, M.S. Shuja.I.R. Harris 881

The Mechanism of Influence of Rare-Earth Metals on Graphite Morphology in Cast IronA.P. Vorobyev, LJa. Kozlov 887

A Study on the Effectiveness of Rare Earth Suicide in Nodular Iron MakingP.K. Biswas, M.M. Sakkir, B.C. Pai, V. Venkateswaran, A.D. Damodaran 892

Question of Existence of La2 AlAhmad Yazdani 893

Nature and Distribution of Nonmetalic Inclusions in Steel with RE AdditionsY.N. Malinochka, T.M.Titova 900

Interaction Between Rare Earth Elements and Important Elements in Iron—Base SolutionsDu Ting 906

Effects of Rare Earth Elements Co-Permeation on Thermal Fatigue of 3Cr2W8V SteelXiang Shang, Wei Yongde, Meng Huimin 911

Interface Structure, Microstress and Adherence of Y-modified Ion Plated TitaniumNitride Film on Mild Steel

Liu Changqing, Yu Zhiming, Wu Weitao, Yu Li, Xu Jiayin, Jin Zhujng : . 916

The Influence of Ce on Pro-eutectoid Fcrrite Transformation in Mn-Cr-V SteelWu Chengjhra, Chang Hong 921

The Probe of Rare Earth (RE) - Vacancies Group Model and Its Reaction Mechanismin Steel Surface Treating

Liu Zheng, Lu Zhenja 925

The Study on Rare-Earth Effect in Sulpho-Carbonitriding ProcessNiu Songpu, Li Jinghui 930

The Behavior of Rare Earths Dissolved in Solid Solution of SteelLin Qin, Ye Wen, Yu Zongsen, Du Yuansheng 935

Effect of RE on Weathering Corrosion-Resistance of Steel 09CuPShao Guanglu, Feng Qiaoying, Liu Hongling 939

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Effect of Rare Earth Element on Substructure and Properties of Nitrocaburized Steel 20Liu Zhiru, Cheng Yion, Go Yi, Pan Su, Tang Zhishu 942

The Influence of Rare Earths on the Anti—Oxidation Property of the Heat Resistant Cast SteelsY.Z. Zhou, H. Long, S.Q. Jia.Z.K. Chen, Y.Z.Wu 947

Effects of RE Composite Modification on the Strength and Toughness of MartensiticSi-Mn Cast Steel

Chen Shouxu, Sun Xinjun, Chen Quande, He Yanyong, Zhang ZhongshengFu Zhongmin, Wu Dehai, Liang Ji 953

Effect of Rare Earths in Laser Surface Melting of Gray IronsLiu Jincheng, Zeng Daben, Guo Yuanqiang, Huang Huisong. , 958

Influence of Rare Earth Additions on Creep and Stress Relaxation of an Al— 5%CuAlloy in the Solid—Liquid Coexistence Zone

Li Qingchun, Chen Kuiying, Zeng Songyan 962

A Study on RE—Ca—Ba Inoculant and its ApplicationsZhou Shikang, Li Jinghong, Gan Zhiyong, Ying Yu, Yan Qiguang, Du Yongan 966

A Study of Industry Process Test of Rare Earth Element in Conductive CopperZhu Yuankai, Wang Jian, Li Wenchao, Wang Yuji, Gong Maoxiu, Yang Wenli 971

The Effect of Rare Earths on Resistance to Atmospheric Corrosion of Weathering SteelsZhang Huiwen, Sun Minghua, Mao Yuwen, Yu Zongsen 975

Influence of Rare Earth Oxides on the Oxidation Bahaviour of Nickel Aluminide CoatingA.U. Malik, Rais Ahmad, Mohd. Ajmal, Sultan Ahmad 979

Influence of Rare Earth Oxide Additions on the Oxidation and Decarburizationof Carbide Dispersed Iron Base Sintered Alloys

A.U. Malik, M. Ajnal, Shahreer Ahmad, Sultan Ahmad, Rais Ahmad 983

RE Applications in Agriculture and Medicine

Contents and Fractionation of Rare Earth Elements in SoilsRan Yong, Liu Zheng 988

A Study on the Influence of Rare—Earth Elements on Pollen Activity in FourKinds of Deciduous Fruit Trees

Zhu Tongshun, Gao Baozhen 993

Effect of Rare Earth Application on the Accumulation of Mineral Element ofTree (Seedlings)

Lian Youqin 997

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The Long Term Effects of Small Dosage of Chlorides of La, Sm and Yb on Cultured CellsNie Yuxiu, Chen Yulan, Yang Jiande, Li ZhenbaoNiu Chunji, Zhang Shugong, Ni Jiazan 1000

Effect of Rare Earth Elements on Mycelial Growth and Quality of Edible FungiFu Minghua, Ding Qianfa, Cheng Yousong, Gu Zhonglan, Yang Ruichang 1003

The Dissoving Characteristics and the Precipitate Composition of Rare Earth forAgriculture Use in Natural Water

Zheng Wei, Wang Shumao 1009

Recent Development of the Study on Agricultural Utilization of Rare Earth in ChinaGuo Bosheng, Xiong Bingkun, Lai Yuansheng, Zhang Yunlin, Hu Liyin 1012

Study on the Effect of Rare Earth on AlfalfaXu Xinyu, Zhang Yumei, Li Yuanfang, Lu Zhongyi,Xing Junquing, Liu Yongguo, Zhang Yujie, et al 1015

Effects of CeCl3 on Chlorophyll Formation and Chloroplast Structure of CucumberLeaves in Relation to Fe and Temperature

Chu Zhongxi, Zhao Jing, Su Xiuzhen 1019

Miscellaneous Applications

New Polishing Powder MaterialsSedova G.N., Konukhov M.U., Bazarova N.A.,Likhachev D.S., Antonov V.I 1025

Study on Rare-Earth Silica Optical FibresGu Zhen'an, Li Lin, Dai Kangqin 1026

Tunable Optical Isolator for Single-Mode Fiber-Optics UsesLiu Gongqiang, SongHuide, Le Zhiqiang, Liu Xianglin 1031

The Tanning Properties of RE and the Application of RE to Leather MakingZhang Mingrang, Li Guoying, Wang Kunyu, Jiang Weiqi 1035

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