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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한양대학교 청정에너지연구소 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제10권 제6호
- 발행연도
- 2009.12
- 수록면
- 716 - 720 (5page)
이용수
초록· 키워드
The sintering behavior, microstructure and mechanical properties of boron carbide ceramics, which were fabricated by a
spark plasma sintering process, were investigated. The relative density of B4C ceramics using a spark plasma sintering method
reached as high as 99% theoretical at a lower temperature than a conventional sintering method, and in addition, without any
sintering additives. The mechanical properties of B4C ceramics could be improved by soaking at 1,300 oC during the sintering
process which removed the B2O3 phase from the B4C powder surface. A remarkable improvement of mechanical properties
could be achieved by the introduction of a soaking process during the spark plasma sintering process. In particular, the
fracture toughness values of the specimens which experienced the B2O3 removal process improved by over 30% compared with
the specimens without this process. These achievements resulted from the formation of a fine and homogeneous microstructure
because the grain coarsening was suppressed by the elimination of the B2O3 phase.
#B4C
#B4C
#Microstructure
#Microstructure
#Mechanical properties
#Mechanical properties
#Spark plasma sintering
#Spark plasma sintering
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