금속열환원 공정에서 반응온도가 니오븀 분말 특성에 미치는 영향
(주)코리아스칼라
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- 2016.04.01
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- 2009.04
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서지정보
ㆍ발행기관 : 한국분말야금학회
ㆍ수록지정보 : 한국분말야금학회지 / 16권 / 2호
ㆍ저자명 : 윤재식, 이영미, 황선호, 김병일
영어 초록
Niobium powder was made from potassium heptafluoroniobite () as the raw material using sodium (Na) as a reducing agent based on the hunter process. The apparatus for the experiment was designed and built specifically for the present study. The niobium particle size greatly increased as the reduction temperature increased from to . The particle size was fairly uniform, varying from to depending on the reduction temperatures. The niobium powder morphology and particle size are very sensitive to a reaction temperature in the metallothermic reduction process. The yield of niobium powder increased from 55% to 80% with a increasing a reaction temperature.
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