TY - JOUR
T1 - In situ formation of hydroxyapatite-whisker ceramics by hydrothermal hot-pressing method
AU - Li, Jun Guo
AU - Hashida, Toshiyuki
PY - 2006/11
Y1 - 2006/11
N2 - Hydroxyapatite (HAp) ceramics have been prepared from α-triealeium phosphate (α-TCP) with addition of water or ammonia water by hydrothermal hot-pressing (HHP) method under a condition of 300°C/40 MPa/2 h. When the additive is water, it appears that the HAp grains produced show whisker-like and plate-like features. The bending strength of the HAp ceramic obtained is measured to be 24.5 MPa. When the additive is ammonia water, the obtained HAp ceramic consists of HAp-whiskers only. The bending strength and fracture toughness reach 56 MPa and 1.52 MPa·m1/2, respectively. Treating α-TCP with addition of ammonia water by the HHP method is thus a useful method for in situ fabrication of HAp-whisker ceramics.
AB - Hydroxyapatite (HAp) ceramics have been prepared from α-triealeium phosphate (α-TCP) with addition of water or ammonia water by hydrothermal hot-pressing (HHP) method under a condition of 300°C/40 MPa/2 h. When the additive is water, it appears that the HAp grains produced show whisker-like and plate-like features. The bending strength of the HAp ceramic obtained is measured to be 24.5 MPa. When the additive is ammonia water, the obtained HAp ceramic consists of HAp-whiskers only. The bending strength and fracture toughness reach 56 MPa and 1.52 MPa·m1/2, respectively. Treating α-TCP with addition of ammonia water by the HHP method is thus a useful method for in situ fabrication of HAp-whisker ceramics.
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U2 - 10.1111/j.1551-2916.2006.01149.x
DO - 10.1111/j.1551-2916.2006.01149.x
M3 - Article
AN - SCOPUS:33750266182
SN - 0002-7820
VL - 89
SP - 3544
EP - 3546
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 11
ER -