PRODUCTION OF HIGH-PURITY TANTALUM METAL POWDER FOR CAPACITORS USING SELF-PROPAGATING HIGH-TEMPERATURE SYNTHESIS

被引：3

作者：

Lee, Yong-Kwan ^{[1
,2
]}

Sim, Jae-Jin ^{[1
,2
]}

Byeon, Jong-Soo ^{[1
,2
]}

Lee, Yong-Tak ^{[1
,2
]}

Cho, Yeong-Woo ^{[1
,2
]}

Kim, Hyun-Chul ^{[1
,3
]}

Heo, Sung-Gue ^{[1
,3
]}

Lee, Kee-Ahn ^{[2
]}

Seo, Seok-Jun ^{[1
]}

Park, Kyoung-Tae ^{[1
]}

机构：

[1] Korea Inst Rare Met, Korea Inst Ind Technol, 7-47 Songdo Dong Yeonsoo Gu, Incheon 406840, South Korea

[2] Inha Univ, Dept Adv Mat Engn, 100 Inharo, Incheon 22212, South Korea

[3] Korea Univ, 145 Anam Ro, Seoul, South Korea

来源：

ARCHIVES OF METALLURGY AND MATERIALS | 2021年 / 66卷 / 04期

关键词：

Tantalum; Self-propagating high-temperature synthesis; Tantalum Oxide; Magnesium; Capacitor; GASLESS REACTIONS; REDUCTION; COALESCENCE; SOLIDS;

D O I：

10.24425/amm.2021.136400

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In this study, high-purity tantalum metal powder was manufactured via self-propagating high-temperature synthesis. During the process, Ta2O5 and Mg were used as the raw material powder and the reducing agent, respectively, and given that combustion rate and reaction temperature are important factors that influence the success of this process, these factors were controlled by adding an excessive mass of the reducing agent (Mg) i.e., above the chemical equivalent, rather than by using a separate diluent. It was confirmed that Ta metal powder manufactured after the process was ultimately manufactured 99.98% high purity Ta metal powder with 0.5 gm particle size. Thus, it was observed that adding the reducing reagent in excess favored the manufacture of high-purity Ta powder that can be applied in capacitors.

引用

页码：935 / 939

页数：5

共 21 条

[1]

[Anonymous], 2014, HSC CHEM SOFTW VER 8

[2]

Choi S.H., 2019, J MET, V9, P169

[3] PROPAGATION OF GASLESS REACTIONS IN SOLIDS .2. EXPERIMENTAL STUDY OF EXOTHERMIC INTERMETALLIC REACTION-RATES [J].