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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.11
- 수록면
- 2,083 - 2,087 (5page)
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The SiC-ZrB<sub>2</sub>composites were produced by subjecting a 40:60 vol.% mixture of zirconium diboride(ZrB<sub>2</sub>powder and β-silicon carbide (SiC) matrix to spark plasma sintering(SPS). Sintering was carried out for 60sec at 1400℃ (designation as TP145 and TP146), 1500℃(designation as TP155 and TP156) and uniaxial pressure 50MPa , 60MP under argon atmosphere. The physical, electrical, and mechanical properties of the SiC-ZrB<sub>2</sub>composites were examined. The relative density of TP145, TP146, TP155 and TP156 were 94.75%, 94.13%, 97.88% and 95.80%, respectively. Reactions between β-SiC and ZrB<sub>2</sub> were not observed via x-ray diffraction (hereafter, XRD) analysis. The flexural strength, 306.23MPa of TP156 was higher than that, 279.42MPa of TP146 at room temperature, but lower than that, 392.30MPa of TP155. The properties of a SiC-ZrB<sub>2</sub> composites through SPS under argon atmosphere were positive temperature coefficient resistance (hereafter, PTCR) in the range from 25℃ to 500℃. The electrical resistivities of TP145, TP146, TP155 and TP156 were 6.75×10<sup>-4</sup>, 7.22×10<sup>-4</sup>, 6.17×10<sup>-4</sup> and 6.71×10<sup>-4</sup>Ω·cm at 25℃, respectively. The densification of a SiC-ZrB<sub>2</sub> composite through hot pressing depend on the sintering temperature and pressure. However, it is convinced that the densification of a SiC-ZrB<sub>2</sub> composite do not depend on sintering pressure under SPS.
목차
Abstract
1. 서론
2. 실험방법
3. 결과 및 고찰
4. 결론
참고문헌
저자소개
참고문헌 (19)
참고문헌 신청
1. [학위논문] - P. A. Hoffman / 1992 / Thermo Elastic Properties of Silcon Carbide-Titanium Diboride Particulate Composites / 석사 / Pennsylvania State University
2. [학술지(정기간행물)] - Hideto Hashiguchi / 1994 / Electrical Resistivity of α-SiC Ceramics Added with NiO / J. Ceram. Soc. Japan 102 (2) : 160 ~ 164
3. [학술지(정기간행물)] - Adam L. Chamberlain / 2009 / Reactive hot pressing of zirconium diboride / Journal of the European Ceramic Society 29 : 3401 ~ 3408
4. [학술지(정기간행물)] - Diletta. Sciti / 2004 / Propertise of ZrB2-Reinforced Tenary Composites / Adanced Engineering Materials 6 (9) : 775 ~ 781
5. [학술지(정기간행물)] - Devesh Tiwari / 2009 / Simulation of thermal and electric field evolution during spark plasma sintering / Ceramics International 35 : 699 ~ 708
2. [학술지(정기간행물)] - Hideto Hashiguchi / 1994 / Electrical Resistivity of α-SiC Ceramics Added with NiO / J. Ceram. Soc. Japan 102 (2) : 160 ~ 164
3. [학술지(정기간행물)] - Adam L. Chamberlain / 2009 / Reactive hot pressing of zirconium diboride / Journal of the European Ceramic Society 29 : 3401 ~ 3408
4. [학술지(정기간행물)] - Diletta. Sciti / 2004 / Propertise of ZrB2-Reinforced Tenary Composites / Adanced Engineering Materials 6 (9) : 775 ~ 781
5. [학술지(정기간행물)] - Devesh Tiwari / 2009 / Simulation of thermal and electric field evolution during spark plasma sintering / Ceramics International 35 : 699 ~ 708
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UCI(KEPA) : I410-ECN-0101-2013-560-000938492