セラミックスの曲げ強度に及ぼすフッ素樹脂コーティングの影響

概要

論文の詳細を見る
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.
社団法人日本セラミックス協会の論文
2002-11-01