Characterization of calcium phosphate apatite with variable Ca/P ratios sintered at low temperature

被引：18

作者：

Wang, Moo-Chin ^{[1
]}

Shih, Wei-Jen ^{[2
]}

Hung, I-Ming ^{[3
]}

Chen, Hui-Ting ^{[1
]}

Hon, Min-Hsiung ^{[4
,5
]}

Huang, Hong-Hsin ^{[6
]}

机构：

[1] Kaohsiung Med Univ, Dept Fragrance & Cosmet Sci, Kaohsiung 80782, Taiwan

[2] Met Ind Res & Dev Ctr, Kaohsiung 81160, Taiwan

[3] Yuan Ze Univ, Yuan Ze Fuel Cell Ctr, Dept Chem Engn & Mat Sci, Taoyuan 320, Taiwan

[4] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 70101, Taiwan

[5] Natl Cheng Kung Univ, Inst Nanotechnol & Microsyst Engn, Tainan 70101, Taiwan

[6] Cheng Shiu Univ, Dept Elect Engn, Kaohsiung 83347, Taiwan

来源：

CERAMICS INTERNATIONAL | 2015年 / 41卷 / 01期

关键词：

Sintering; Grain size; Apatite; Calcium phosphate; MECHANICAL-PROPERTIES; ATOMIC RATIO; DICALCIUM PHOSPHATE; THERMAL-STABILITY; HYDROXYAPATITE; MORPHOLOGY; BONE; HYDROLYSIS; COATINGS; POWDERS;

D O I：

10.1016/j.ceramint.2014.09.051

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The characterization of calcium phosphate apatite with variable Ca/P ratios synthesized by the hydrolysis method and sintered at 1073 K has been investigated. When the precipitate powders are sintered at 1073 K for 4 h, the major phase observed is hydroxyapatite (Ca-10(PO4)(6)(OH)(2), HA), and the minor phases are rhenanite (NaCaPO4) and beta-tricalcium phosphate (beta-TCP, beta-Ca-3(PO4)). The shrinkage increased from 5.15 to 21.00%, and the grain size of the pellets also increased from 31 to 348 nm along with the ratios of Ca/P. The TEM microstructure identified with SAED and EDS analyses show that an amorphous phase of NaCaPO4 is present at the grain boundaries of HA, which promotes the sintering of calcium phosphate, but reduces the mechanical properties. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：1223 / 1233

页数：11

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