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초고온 소재용 ZrB2계 복합소재의 제조 KCI 등재

Fabrication of ZrB2-based Composites for Ultra-high Temperature Materials

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  • URLhttps://db.koreascholar.com/Article/Detail/2693
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한국분말야금학회지 (Journal of Korean Powder Metallurgy Institute)
한국분말재료학회(구 한국분말야금학회) (Korean Powder Metallurgy Institute)
초록

based composites are candidate materials for ultra-high temperature materials (UHTMs). has become an indispensable ingredient in UHTMs, due to its high melting temperature, relatively low density, and excellent resistance to thermal shock or oxidation. powders are usually synthesized by solid state reactions such as carbothermal, borothermal, or combined carbothermal reaction. SiC is added to this system in order to enhance the oxidation resistance of . In this study, ?based composites were successfully synthesized and densified through two different processing paths. or 25 vol.%SiC was fully synthesized from oxide starting materials with reducing agents after heat treatment at 1400. Besides, ?20 vol.%SiC was fully densified with as a sintering additive after hot pressing at 1900. The synthesis mechanism and the effect of sintering additives on densification of ?SiC composites were also discussed.

저자
  • 김성원 | Kim Seong-Won
  • 채정민 | Chae Jung-Min
  • 이성민 | Lee Sung-Min
  • 오윤석 | Oh Yoon-Suk
  • 김형태 | Kim Hyung-Tae
  • 남산 | Nahm Sahn