Effect of Fluoric Resin Coating on Bending Strength of Ceramics
| Autor: | Shoko Suyama, Takeshi Udagawa, Yoshiyasu Itoh, Takahiko Shindoh, Hideyasu Andoh |
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| Rok vydání: | 2002 |
| Předmět: |
Materials science
Modulus General Chemistry engineering.material Condensed Matter Physics Thermal expansion Coating Flexural strength Residual stress visual_art Materials Chemistry Ceramics and Composites engineering Copolymer visual_art.visual_art_medium Ceramic Composite material Stress concentration |
| Zdroj: | Journal of the Ceramic Society of Japan. 110:980-984 |
| ISSN: | 1882-1022 0914-5400 |
| DOI: | 10.2109/jcersj.110.980 |
| Popis: | The stress distribution characteristics at the edge of pores of sintered ceramics with fluoric resin coating were investigated by paying attention to the effect of Young's modulus and the thermal expansion coefficient on the stress concentration factor. The residual stress characteristics of ceramic composite, induced by the infiltration of fluoric resin into sintered ceramic pores, were clarified by using the finite element analysis. As a result, it was confirmed that a high compressive residual stress could be induced around the ceramic pores by the mismatch of the thermal expansion coefficients between the ceramics and the fluoric resin. It was also confirmed that the bending strength of sintered 20 mass% alumina and sintered 95 mass% alumina with tetra fluoro ethylene-perfluoro alkylvinyl ether copolymer (PFA) coating was markedly improved in comparison with each as-sintered alumina samples. |
| Databáze: | OpenAIRE |
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