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J. Korean Ceram. Soc. > Volume 32(9); 1995 > Article
Journal of the Korean Ceramic Society 1995;32(9): 1009.
SHS 마이크로파에 의한 (Ti.Si)C 복합체의 합성 및 소결특성에 관한 연구
이형복, 권상호, 이재원, 안주삼1
명지대학교 무기재료공학과
1국립공업기술원 요업기술원
Study on Synthesis and Characterization of (Ti.Si)C Composite by SHS Microwave
(Ti.Si)C composite powders were synthesized by SHS method using microwave energy. Compositional and structural characterization of the powder were carried out by using scanning electron microscopy and X-ray diffraction. The average particle size of the synthesized (Ti.Si)C composite powders was smaller than that of the starting materials. From the results of the temperature profile, combustion temperature and velocity were decreased with increasing Si molar ratio. With increasing C molar ratio combustion temperature and velocity did not change. (Ti.Si)C composite was sintered at 185$0^{circ}C$ for 60 min by using hot-pressing with 30 MPa. The best properties were obtained from the sintered specimen whose composition was 1 : 1 : 1.9 molar ratio of Ti : Si : C. The sintering density, flexural strength and vickers hardness of the sintered body were 4.71 g/㎤, 423 MPa and 21 GPa, respectively.
Key words: (Ti
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