대한전기학회논문지:전기물성ㆍ응용부문C (The Transactions of the Korean Institute of Electrical Engineers C)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

SIC 도전성 세라믹 복합체의 특성에 미치는 천이금속의 영향

Effect of Transition Metal on Properties of SiC Electroconductive Ceramic Composites

  • 신용덕 (원광대 공대 전기전자 및 정보공학부) ;
  • 오상수 (원광대 대학원 전기공학) ;
  • 주진영 (한보 NISCO 기술연구소)
  • 발행 : 2004.07.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The composites were fabricated, respectively, using 61vol.% SiC - 39vol.% TiB$_2$ and using 61vo1.% SiC - 39vo1.% WC powders with the liquid forming additives of 12wt% $Al_2$O$_3$＋Y$_2$O$_3$ by pressureless annealing at 180$0^{\circ}C$ for 4 hours. Reactions between SiC and transition metal TiB$_2$, WC were not observed in this microstructure. The result of phase analysis of composites by XRD revealed SiC(6H), TiB$_2$ and YAG(Al$_{5}$Y$_3$O$_{12}$) crystal phase on the SiC-TiB$_2$, and SiC(2H), WC and YAG(Al$_{5}$Y$_3$O$_{12}$) crystal phase on the SiC-WC composites. $\beta$\$\longrightarrow$$\alpha$-SiC phase transformation was ocurred on the SiC-TiB$_2$, but $\alpha$\$\longrightarrow$$\beta$-SiC reverse transformation was not occurred on the SiC-WC composites. The relative density, the vicker's hardness, the flexural strength and the fracture toughness showed respectively value of 96.2%, 13.34GPa, 310.19Mpa and 5.53Mpaㆍml/2 in SiC-WC composites. The electrical resistivity of the SiC-TiB$_2$ and the SiC-WC composites is all positive temperature coefficient resistance(PTCR) in the temperature ranges from $25^{\circ}C$ to 50$0^{\circ}C$. 2.64${\times}$10-2/$^{\circ}C$ of PTCR of SiC-WC was higher than 1.645${\times}$10-3/$^{\circ}C$ of SiC-TiB$_2$ composites.posites.

키워드

참고문헌

  1. Patrica A. Hoffman, 'Thermo Elastic Properties of Silicon Carbide-Titanium Diboride Particulate Composites,' M.S Thesis, 1992
  2. Hideto Hashiguchi and Hisashi Kimugasa, 'Electrical Resistivity of ${\alpha}$-SiC Ceramics Added with NiO' J. Ceram. Soc. Japan, 102(2), pp.160-164, 1994 https://doi.org/10.2109/jcersj.102.160
  3. N. P. Padture, 'In Situ-Toughened Silicon Carbide' J. Am. Ceram. Soc., 77[2], pp.519-523, 1994 https://doi.org/10.1111/j.1151-2916.1994.tb07024.x
  4. Yong Deok Shin, Jin Youn Ju, Kwang soo Choi, Sang soo Oh, Je Ho Seo, ' Effect of Annealing Temperature on the Properties of ${\beta}$-SiC-TiB2 Electrocondutive Ceramic Composites by Spray Dry', Trans. KIEE, Vol.52C, Np.8, pp.335-341, 2003
  5. Do Hyeong Kim AND Chong Hee Kim, 'Toughening Behavior of Silicon Carbide with Additions of Yttria and Alumina', J. Am. Ceram. Soc., vol.735, pp.1431-34, 1990
  6. Seung Hyuk Yim, Yong Deok Shin and Joon Tae Song, 'The Properties of $\beta-SiC-TiB_2$ Electroconductive Ceramic Composites Densified by Liquid Phase Sintering', Trans. KIEE, Vol.49, No.9, pp.510-515, 2000
  7. Yon Kap Park, Jun Tae Kim and Yong Hyuck Baik, 'Mechanical Properties and Electrical Discharge Machinability of $\beta$-Sialon-TiB2 Composites' J. Mater. Sci. Korean, 5[1], pp.19-24, 1999
  8. Jie Zhang, Joong Chai Jung, Jong Hyeon Lee and Chang Whan Won, 'Synthesis of WC Powder by Process' J. Kor. INST. Met & Mater, Vol.38, No.5, 2000
  9. L. J. Van der Paw, 'A Method of Measuring Specific Resistivity and Hall Effect of Discs of Arbitrary Shapes' Philips Res. Repts, Vol.13, NO.1, pp.1-9, 1958
  10. A. G. Evans and T. R. Wilshaw 'Quasi-Static Solid Particle Demage in Brittle Solids-1. Observation Analysis and Implication' Axta Matallurgica, Vol.24, pp.939-956, 1976 https://doi.org/10.1016/0001-6160(76)90042-0
  11. Yong Deok Shin, 'Electric Discharge Machining of Hot-Pressed SiC-ZrB2 Composites Cramic' Trans. KIEE, Vol.46, NO.7, pp.1062-1067, 1997
  12. A. R. Kieffer, P. Ettmayer, E. Angel and A. Schmidt, 'Phase Stability of SiC in the Ternary System Si-C-N' Mater. Res. Bull., Vol.4, pp.S153-S166, 1969 https://doi.org/10.1016/0025-5408(69)90050-6
  13. N. W. Jepps and T. F. Page, 'The 6H${\to}$3C Reverse Transformation in Silicon Carbide Compacts' J. Am. Ceram. Soc., Vol.64, No.12, pp.c-177-c-178, 1981 https://doi.org/10.1111/j.1151-2916.1981.tb15906.x
  14. Servet Turan and Kevin M.Knowles, '${\alpha}{\to}{\beta}$ Reverse Phase Transformation in Silicon Carbide in Silicon Nitride-Particulate-Reinforced-Silicon Carvide Composites' J. Am. Ceram. Soc., Vol.79, No.11, pp.2892-2896, 1996 https://doi.org/10.1111/j.1151-2916.1996.tb08723.x
  15. Jin Young Ju and Yong Deok Shin, 'Phase Transformation and Mechanical Properties on Sintering Temperature of ${\beta}$-SiC Manufactured by Presureless Sintering' receedings of the KIEE Annual Summer Conforence, Vol.2, No.1, pp.1433-1435, 2001
  16. Jin Young Ju, Young Deok Shin, Mi Lim Park, Jong Deok Lee, 'Phase Trasformation and Mechanical Properties on Sintering Temperature of ${\alpha}$-SiC Manufactured by Presureless Sintering' Proceeding of the KIEEME Annual Summer Conference, pp.431-434, 2001
  17. Jurgen Rodel, 'Interaction Between Crack Deflection and Crack Bridging' Journal of the European Ceramic Society, 10, pp.143-150, 1992 https://doi.org/10.1016/0955-2219(92)90027-B
  18. Ken Takahashi, Ryutarou Jimbou, Yasuo Matsushita, Seiichi Yamada and Testsuo Kosugi 'Proerties of SiC Based Electro-Conductive Ceramic Composites' Yogyo-Kyokai-Shi, 93[3], pp123-129, 1985 https://doi.org/10.2109/jcersj1950.93.1075_123