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Preparation of TaC Powder from the Waste of Ta powder Fabrication Process for Capacitor  

Park Je-Shin (한국지질자원연구원 자원활용소재연구부 소재개발실)
Suh Chang-Youl (한국지질자원연구원 자원활용소재연구부 소재개발실)
Yaon Jae-Sik ((주)대성공업 부설 희유금속소재연구소)
Bae In-Sung ((주)대성공업 부설 희유금속소재연구소)
Park Hyeoung-Ho ((주)대성공업 부설 희유금속소재연구소)
Publication Information
Resources Recycling / v.12, no.4, 2003 , pp. 51-57 More about this Journal
Abstract
Using the wastes of Ta powder fabrication process for capacitor, TaC powder was synthesized by SHS method. In previous to synthesis, the waste Ta was needed of milling and deoxidization treatments for active reaction and prevention of oxidation. In SHS reaction, it was found that the TaC single phase was obtained in composition of 5～6wt.％C. The reaction temperature was affected by the compaction pressure of the specimens, exhibiting the maximum values at 1600psi, respectively.
Keywords
Self-propagating High-temperature Synthesis; TaC; deoxidization; propagation temperature; compaction pressure;
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