二元細孔シリカ及びシリカージルコニアの熱的特性(<特集>イノベーティブセラミックス(I))

概要

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Thermal properties of bimodal porous silica and silica-zirconia with humidity control ability are investigated in order to clarify their potential as a multi-functional building material. Thermal conductivity of the silica decreases with increasing the porosity of the silica, and 0.06 W m<-1>K^<-1> is achieved when the porosity exceeds 90%. The silica shows thermal resistance of ca. 800℃, which is much higher than conventional thermal insulators. The thermal resistance can be improved by the addition of zirconia: a silica-zirconia sample maintains its high porosity up to 1050℃. Thus, the bimodal porous silica and silica-zirconia are expected to be a thermal insulator with humidity control and thermal resistance abilities.
社団法人日本セラミックス協会の論文
2005-01-01