TGA에 의한 탄소섬유/탄화규소 복합재료의 열처리 특성

다국어 초록 (Multilingual Abstract)

In this study, monolithic SiC and C<SUB>f</SUB>/SiC were made by hot pressing method with SiC powder whose a particle size is 50nm and less on the average. Alumina (Al₂O₃), yttria (Y₂O₃) and silica (SiO₂) were used for sintering additives and ratios of Al₂O₃:Y₂O₃:SiO₂ composition was lockup to 6:4:3(in the case of C<SUB>f</SUB>/SiC carbon fiber was used reinforcement). The composite materials have been sintered for 1 hour at 1800℃ under the pressure of 20㎫. The carbon fiber investigated oxidation property by TGA for finding out decarburization point. So the carbon fiber was observed change of thermogravimetric from 0 to 1000℃ at 10℃/min by TGA-equipment. monolithic SiC and C<SUB>f</SUB>/SiC were evaluated in terms of heat-treatment characteristics for porous ceramics. As a result, decarburization point selected middle point of TGA curve and C<SUB>f</SUB>/SiC composite materials occurred perfectly decarburization at carbon fiber. The future, if it became sintering condition of optimization, porous ceramics will fabricate excellent property used reaction of carbon.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험방법
• 3. 실험결과 및 고찰
• 4. 결론
• 참고문헌