타이타늄 하이드라이드 분말의 침탄에 의한 타이타늄 카바이드 분말 제조
(주)코리아스칼라
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- 2023.04.05
- 최종 저작일
- 2017.02
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서지정보
ㆍ발행기관 : 한국분말야금학회
ㆍ수록지정보 : 한국분말야금학회지 / 24권 / 1호
ㆍ저자명 : 이훈석, 서향임, 이영선, 이동준, 왕제필, 이동원
영어 초록
Titanium carbide (TiC) powders are successfully synthesized by carburization of titanium hydride (TiH2) powders. The TiH2 powders with size lower than 45 μm (-325 Mesh) are optimally produced by the hydrogenation process, and are mixed with graphite powder by ball milling. The mixtures are then heat-treated in an Ar atmosphere at 800-1200oC for carburization to occur. It has been experimentally and thermodynamically determined that the dehydrogenation, “TiH2 = Ti + H2”, and carburization, “Ti + C = TiC”, occur simultaneously over the reaction temperature range. The unreacted graphite content (free carbon) in each product is precisely measured by acid dissolution and by the filtering method, and it is possible to conclude that the maximal carbon stoichiometry of TiC0.94 is accomplished at 1200oC.
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