Purification of uranium metal using the solid state electrotransport method under ultrahigh vacuum

被引：36

作者：

Haga, Y ^{[1
]}

Honma, T

Yamamoto, E

Ohkuni, H

Onuki, Y

Ito, M

Kimura, N

机构：

[1] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Naka, Ibaraki 3191195, Japan

[2] Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan

[3] Japan Atom Energy Res Inst, Dept Chem & Fuel Res, Naka, Ibaraki 3191195, Japan

[4] Tohoku Univ, Ctr Low Temp Sci, Sendai, Miyagi 9800845, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1998年 / 37卷 / 6A期

关键词：

solid state electrotransport; purification; ultrahigh vacuum; uranium; heavy fermion research;

D O I：

10.1143/JJAP.37.3604

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A uranium ingot was successfully purified using the solid state electrotransport (SSE) method. The concentration of impurities was dramatically reduced after the SSE treatment. In particular, magnetic transition metals such as Fe and Cu were removed almost completely. Impurities with high vapor pressure such as Mn and Zn were evaporated. The mechanism of the impurity-reduction was qualitatively explained by three effects: sweeping out by the flow of the electrical current, diffusion and evaporation. It is very important to hold the uranium ingot at a high temperature just below the melting point.

引用

页码：3604 / 3609

页数：6