TY - JOUR
T1 - Properties of alumina-zirconia powder prepared from aluminium chelate compound and zirconium alkoxide
AU - Kawabata, Koji
AU - Yoshimatsu, Hideyuki
AU - Yabuki, Tatsumi
AU - Kubotsu, Akira
AU - Hayakawa, Satoshi
AU - Osaka, Akiyoshi
AU - Miura, Yoshinari
PY - 1998
Y1 - 1998
N2 - 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% ZrO2. The pore radius for AZ containing 0-40 mol% ZrO2 distributed from 1 to 3 nm. The true density of AZ was lower than that of ALK in the range of 0-40 mol% ZrO2. Four- and 6-coordinated Al atoms existed in ZrO2-free AZ, while 5-coordinated Al atoms in addition to 4- and 6-coordinated Al atoms existed in AZ containing 20-80 mol% ZrO2. These results indicate that alumina component and zirconia component in AZ were mixed homogeneously at the atomic level.
AB - 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% ZrO2. The pore radius for AZ containing 0-40 mol% ZrO2 distributed from 1 to 3 nm. The true density of AZ was lower than that of ALK in the range of 0-40 mol% ZrO2. Four- and 6-coordinated Al atoms existed in ZrO2-free AZ, while 5-coordinated Al atoms in addition to 4- and 6-coordinated Al atoms existed in AZ containing 20-80 mol% ZrO2. These results indicate that alumina component and zirconia component in AZ were mixed homogeneously at the atomic level.
KW - Alumina-zirconia powder
KW - Aluminium chelate compound
KW - Pore size distribution
KW - Specific surface area
KW - True density
KW - Zirconium alkoxide
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U2 - 10.2109/jcersj.106.155
DO - 10.2109/jcersj.106.155
M3 - Article
AN - SCOPUS:0032000559
VL - 106
SP - 155
EP - 159
JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
SN - 1882-0743
IS - 2
ER -