低熱膨張Ca置換リューサイト多孔体の細孔構造に及ぼすボールミル効果

概要

論文の詳細を見る
rights: 社団法人日本セラミックス協会rights: 本文データは学協会の許諾に基づきCiNiiから複製したものであるrelation: isVersionOf: http://ci.nii.ac.jp/naid/110004997692/The ball-milling for amorphous calcined powder in a PMMA solution, prepared by heating a mixture of nitrates, γ-Al_2O_3, and amorphous SiO_2 powders were effective for the fabrication of Ca-substituted leucite porous bodies with almost homogeneous pore-size distributions. Especially, when the amorphous powder calcined at 1073K was ball-milled for 48h, the pore size decreased to 0.159μm and porosity increased in the porous body fabricated using the amorphous calcined powder. The FT-IR spectroscopy revealed that the amorphous calcined powder is composed of fine particles having a network of (Si, Al) O_4 tetrahedra similar to the aluminosilicate framework of the leucite compounds. The fabricated porous body showed a low linear thermal expansion coefficient of 1.405×10^<-6>/K in the temperature range of 298 to 1273K.
社団法人日本セラミックス協会の論文
2006-12-01