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- 나노크기의 ZrO2와 Graphite 분말 혼합체의 열탄소환원법에 의한 고분산 초미립 ZrC 분말의 합성
- 이화준, 류성수
- Facile Synthesis of Highly Dispersed Ultra-fine ZrC Powders by Carbothermal Reduction Method Using Nanosized ZrO2 and Nanosized Graphite Powder Mixtures
- Wha-Jun Lee, Sung-Soo Ryu
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Journal of Powder Materials 2013;20(2):100-106
DOI: https://doi.org/10.4150/KPMI.2013.20.2.100
1한국세라믹기술원 엔지니어링세라믹센터
2한국세라믹기술원 엔지니어링세라믹센터
1Engineering Ceramics Center, Korea Institute of Ceramic Engineering and Technology
2Engineering Ceramics Center, Korea Institute of Ceramic Engineering and Technology
2한국세라믹기술원 엔지니어링세라믹센터
1Engineering Ceramics Center, Korea Institute of Ceramic Engineering and Technology
2Engineering Ceramics Center, Korea Institute of Ceramic Engineering and Technology
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Abstract
Ultra-fine zirconium carbide (ZrC) powder with nano-sized primary particles was synthesized by the carbothermal reduction method by using nano-sized ZrO_2 and nano-sized graphite powders mixture. The synthesized ZrC powder was well dispersed after simple milling process. After heat-treatment at 1500°C for 2 h under vacuum, ultra-fine ZrC powder agglomerates (average size, 4.2µm) were facilely obtained with rounded particle shape and particle size of ~200 nm. Ultra-fine ZrC powder with an average particle size of 316 nm was obtained after ball milling process in a planetary mill for 30 minutes from the agglomerated ZrC powder.
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