- 기공형성제 크기와 함량이 다공질 지르코니아 세라믹스의 가공율과 강도에 미치는 영향
- ㆍ 저자명
- 채수호,김영욱,송인혁,김해두,배지수,Chae. Su-Ho,Kim. Young-Wook,Song. In-Hyuek,Kim. Hai-Doo,Bae. Ji-Soo
- ㆍ 간행물명
- 한국세라믹학회지
- ㆍ 권/호정보
- 2009년|46권 1호|pp.35-40 (6 pages)
- ㆍ 발행정보
- 한국세라믹학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Using zirconia and poly (methyl methacrylate-coethylene glycol dimethacrylate) (PMMA) microbeads, macroporous zirconia ceramics were fabricated by a simple pressing method. Effects of template size and content on microstructure, porosity, and flexural and compressive strengths were investigated in the processing of the macroporous zirconia ceramics. Three different sizes of microbeads (8, 20, and $50{mu}m$) were used as a template for fabricating the macroporous ceramics. The porosity increased with increasing the template size at the same template content. The flexural and compressive strengths were primarily influenced by the porosity rather than the template size. However, the strengths increased with decreasing the template size at the same porosity. By controlling the template size and content, it was possible to produce macroporous zirconia ceramics with porosities ranging from 58% to 75%. Typical flexural and compressive strength values at 60% porosity were ${sim}30;MPa$ and ${sim}75;MPa$, respectively.