Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 155-159 |
| Number of pages | 5 |
| Journal | Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan |
| Volume | 106 |
| Issue number | 2 |
| Publication status | Published - 1998 |
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Keywords
- Al MAS-NMR
- Alumina-zirconia powder
- Aluminium chelate compound
- Pore size distribution
- Specific surface area
- True density
- Zirconium alkoxide
ASJC Scopus subject areas
- Ceramics and Composites
Cite this
Properties of alumina-zirconia powder prepared from aluminium chelate compound and zirconium alkoxide. / Kawabata, Koji; Yoshimatsu, Hideyuki; Yabuki, Tatsumi; Kubotsu, Akira; Hayakawa, Satoshi; Osaka, Akiyoshi; Miura, Yoshinari.
In: Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, Vol. 106, No. 2, 1998, p. 155-159.Research output: Contribution to journal › Article
}
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% 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.
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% 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.
KW - Al MAS-NMR
KW - Alumina-zirconia powder
KW - Aluminium chelate compound
KW - Pore size distribution
KW - Specific surface area
KW - True density
KW - Zirconium alkoxide
UR - http://www.scopus.com/inward/record.url?scp=0032000559&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032000559&partnerID=8YFLogxK
M3 - Article
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 -