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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 733 - 739 (7page)
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초록· 키워드
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Tungsten composites reinforced with 20 vol% of different particle sizes of ZrN and W powders were prepared by ball millingand spark plasma sintering. Correlations between the W and ZrN grain sizes, and the mechanical and ablation properties ofthe composites, were investigated. The improved mechanical properties of the ZrN/W composite containing fine ZrN andfine W grains is attributed to a W grain refinement effect and a ZrN particle strengthening effect. The mass ablation rateof the composites containing fine ZrN and coarse W grains significantly decreased, i.e., 36% lower that of the compositecontaining fine ZrN grains and fine W grains. The improved ablation resistance is attributed to better surface coverage ofthe ZrO2oxide layer because of uniformly dispersed fine ZrN particles, and to less oxidation and sweeping away of the Wmatrix during ablation through grain boundary diffusion suppression caused by the large W grain size.
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참고문헌 (21)
참고문헌 신청
D. Lee / 2014 / Int. J. Refract. Met. Hard Mater 43:89~93
M. Mabuchi / 1997 / Mater. Sci. Eng. A 237:241~249
D. Lee / 2011 / J. Alloys Compd 509:9060~9064
Y. J. Wang / 2011 / Mater. Sci. Eng. A 528:1805~1811
Malik Adeel Umer / 2016 / Fabrication of Protective-coated SiC Reinforced Tungsten Matrix Composites with Reduced Reaction Phases by Spark Plasma Sintering / Metals and Materials International 22(3):493~500
M. Mabuchi / 1997 / Mater. Sci. Eng. A 237:241~249
D. Lee / 2011 / J. Alloys Compd 509:9060~9064
Y. J. Wang / 2011 / Mater. Sci. Eng. A 528:1805~1811
Malik Adeel Umer / 2016 / Fabrication of Protective-coated SiC Reinforced Tungsten Matrix Composites with Reduced Reaction Phases by Spark Plasma Sintering / Metals and Materials International 22(3):493~500
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