LOW TEMPERATURE SINTERING OF HYDROXYAPATITE BY HYDROTHERMAL HOT-PRESSING
LOW TEMPERATURE SINTERING OF HYDROXYAPATITE BY HYDROTHERMAL HOT-PRESSING
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水热热压低温烧结羟基磷灰石
DOI：
10.3363/prb1992.4.0_65
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
N. Yamasaki
中科院分区：
文献类型：
--
作者：
K. Ioku;Keiichi Yamamoto;K. Yanagisawa;N. Yamasaki
以Ca（NO3）2和（NH 4）2 HPO 4水溶液为原料，制备含水量为20%（质量分数）的无定形磷酸钙（ACP）粉体，在100 ~ 300 ℃、50 MPa、2 h条件下进行热压。采用300 ℃水热热压法制备了透明羟基磷灰石陶瓷。该羟基磷灰石是Ca/P比为1.59的缺钙磷灰石。在模拟体液中，半透明磷灰石陶瓷表面形成碳酸羟基磷灰石层。
The powder of amorphous calcium phosphate (ACP) containing 20mass% water, prepared from aqueous solution of Ca(NO3)2 and (NH4)2HPO4, was hot-pressed hydrothermally at the temperatures from 100 to 300•Ž under 50 MPa for 2 h. Translucent hydroxyapatite ceramics were prepared by hydrothermal hot-pressing at 300•Ž. This hydroxyapatite was calcium deficient apatite with the Ca/P ratio of 1.59. In simulated body fluid, carbonate hydroxyapatite layer was formed on the surface of the translucent apatite ceramics.