SOLID-STATE ELECTROTRANSPORT PURIFICATION OF DYSPROSIUM

被引：17

作者：

FORT, D

PECHARSKY, VK

GSCHNEIDNER, KA

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011

[2] IOWA STATE UNIV SCI & TECHNOL,DEPT MAT SCI & ENGN,AMES,IA 50011

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 1995年 / 226卷 / 1-2期

基金：

英国工程与自然科学研究理事会;

关键词：

DYSPROSIUM; SOLID STATE ELECTROTRANSPORT; PURIFICATION; RARE EARTHS;

D O I：

10.1016/0925-8388(95)01592-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Solid state electrotransport has been used to refine polycrystalline dysprosium metal to a purity of 99.96 at.%, which is believed to be the highest purity ever reported for this metal. The relatively high vapour pressure of dysprosium at solid state electrotransport processing temperatures necessitated the use of an inert gas environment, as well as lower than ideal processing temperatures or reduced processing times, to restrict volatilization losses. The comparative advantages of high temperature, short-time versus low temperature, long-time electrotransport programmes were investigated.

引用

页码：190 / 196

页数：7

共 10 条

[1]

Beaudry B. J., 1978, Handbook on the physics and chemistry of rare earths, vol.1. Metals, P173, DOI 10.1016/S0168-1273(78)01006-5

[2] PURIFICATION OF RARE-EARTH METALS BY ELECTROTRANSPORT [J].

CARLSON, ON ;

SCHMIDT, FA ;

PETERSON, DT .

JOURNAL OF THE LESS-COMMON METALS, 1975, 39 (02) :277-286

[3] THE PURIFICATION AND CRYSTAL-GROWTH OF RARE-EARTH-METALS USING SOLID-STATE ELECTROTRANSPORT [J].

FORT, D .

JOURNAL OF THE LESS-COMMON METALS, 1987, 134 (01) :45-65

[4] SOLID-STATE ELECTROTRANSPORT OF ERBIUM [J].

FORT, D ;

BEAUDRY, BJ ;

GSCHNEIDNER, KA .

JOURNAL OF THE LESS-COMMON METALS, 1990, 166 (01) :173-188

[5] SOLID-STATE CRYSTAL-GROWTH OF RARE-EARTH-METALS AND ALLOYS ADOPTING THE HCP CRYSTAL-STRUCTURE [J].

FORT, D .

JOURNAL OF ALLOYS AND COMPOUNDS, 1991, 177 (01) :31-47

[6] THE ULTRAPURIFICATION OF RARE-EARTH-METALS - GADOLINIUM AND NEODYMIUM [J].

FORT, D ;

BEAUDRY, BJ ;

GSCHNEIDNER, KA .

JOURNAL OF THE LESS-COMMON METALS, 1987, 134 (01) :27-44

[7]

HASEGAWA R, 1990, P S PROCESSING RARE, P33

[8]

McEwen K. A., 1978, Handbook on the physics and chemistry of rare earths, vol.1. Metals, P411, DOI 10.1016/S0168-1273(78)01010-7

[9]

PETERSON DT, 1977, ELECTRO THERMOTRANSP, P54

[10] PREPARATION OF HIGH-PURITY YTTRIUM SINGLE-CRYSTALS BY ELECTROTRANSPORT [J].

VOLKOV, VT ;

NIKIFOROVA, TV ;

IONOV, AM ;

PUSTOVIT, AN ;

SIKHARULIDSE, GG .

JOURNAL OF THE LESS-COMMON METALS, 1981, 79 (02) :199-205

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