Sodium thermal reduction of tantalum powders from melts with tantalum pentaoxide additions

被引：6
|
作者：
Kolosov V.N. [1 ]
Miroshnichenko M.N. [1 ]
Orlov V.M. [1 ]
Prokhorova T.Y. [1 ]
机构：
[1] Institute of Rare Element and Mineral Chemistry and Technology, Kola Research Center, Russian Academy of Sciences, Apatity, Murmansk oblast 184200
来源：
Russian Metallurgy (Metally) | 2010年 / 2009卷 / 06期
关键词：
Oxygen Content; Tantalum; RUSSIAN Metallurgy; Powder Surface; Initial Molar Ratio;
D O I：
10.1134/S0036029509060044
中图分类号：
学科分类号：
摘要：
The effect of the oxygen concentration in a melt on the characteristics of sodium-reduced tantalum powders, which were produced from potassium heptafluotantalate-based melts with tantalum pentaoxide additions, is studied. An increase in the oxygen content in the initial melt from 0.35 to 2.0 wt % leads to an increase in the specific surface of the formed powder from 1.2 to 3.5 m2/g. The specific charge of anodes made from these powders is 37800-70700 CV/g. © 2009 Pleiades Publishing, Ltd.
引用
收藏
页码：473 / 477
页数：4
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