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도전체 매개반응(EMR)법에 의한 Ti 분말 제조
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  • 도전체 매개반응(EMR)법에 의한 Ti 분말 제조
저자명
박일,추용호,이철로,이오연,Park. Il,Chu. Yong Ho,Lee. Chul Ro,Lee. Oh Yeon
간행물명
한국재료학회지
권/호정보
2004년|14권 12호|pp.857-862 (6 pages)
발행정보
한국재료학회
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정기간행물|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Production of titanium powder directly from tantalum oxides ($TiO_2$) pellet through an electronically mediated reaction (EMR) by calciothermic reduction has been investigated. Feed material ($TiO_2;pellet$) and reductant (Ca-Ni alloy) were charged into electronically isolated locations in a molten calcium chloride ($CaCl_2$) bath at $950^{circ}C$. The current flow through an external circuit between the feed (cathode) and reductant (anode) locations was monitored during the reduction of $TiO_2$. The current approximately 3.2A was measured during the reaction in the external circuit connecting cathode and anode location. After the reduction experiment, pure titanium powder with low nickel content was obtained even though Ca-Ni alloy was used as a reductant. These results demonstrate that titanium powder can be produced without direct physical contact between the feed and reductant. In certain experimental conditions, pure titanium powder with approximately $99.5;mass\%$ purity was successfully obtained.