アルミニウムキレート化合物とジルコニウムアルコキシドより作製したアルミナ-ジルコニア粉体の性質

概要

論文の詳細を見る
Alumina-zirconia powder(AZ)was prepared by thermal decomposition of organic precursors synthesized from ethyl acetoacetate aluminium diisopropoxide and zirconium tetra-n-butoxide. The specific surface area of AZ was higher than that of alumina-zirconia powder(ALK)prepared from aluminium tri-sec-butoxide and zirconium tetra-n-butoxide in the range of 0-40 mol% ZrO_2. The pore radius for AZ containing 0-40 mol% ZrO_2 distributed from 1 to 3 nm. The true density of AZ was lower than that of ALK in the range of 0-40 mol% ZrO_2. Four- and 6-coordinated Al atoms existed in ZrO_2-free AZ, while 5-coordinated Al atoms in addition to 4- and 6-coordinated Al atoms existed in AZ containing 20-80 mol% ZrO_2. These results indicate that alumina component and zirconia component in AZ were mixed homogeneously at the atomic level.
社団法人日本セラミックス協会の論文
1998-02-01