Thermal stability of β-tricalcium phosphate doped with monovalent metal ions

被引：67

作者：

Matsumoto, Naoyuki ^{[2
,3
]}

Yoshida, Katsumi ^{[4
]}

Hashimoto, Kazuaki ^{[1
]}

Toda, Yoshitomo ^{[1
]}

机构：

[1] Chiba Inst Technol, Fac Engn, Dept Life & Environm Sci, Narashino, Chiba 2750016, Japan

[2] Chiba Inst Technol, Grad Sch, Dept Engn, Narashino, Chiba 2750016, Japan

[3] Chiba Inst Technol, Grad Sch, Fac Engn, Narashino, Chiba 2750016, Japan

[4] Tokyo Inst Technol, Nucl Reactors Res Lab, Mass Transmutat Engn Div, Meguro Ku, Tokyo 1528550, Japan

来源：

MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 09期

关键词：

Ceramics; Metals; X-ray diffraction; Crystal structure; Diffusion; NEUTRON POWDER DIFFRACTION; SUBSTITUTED HYDROXYAPATITES; CRYSTAL-STRUCTURE; SPRAY-PYROLYSIS; PHASE-CHANGE; IN-VITRO; MG; CERAMICS; TEMPERATURE; TCP;

D O I：

10.1016/j.materresbull.2009.05.012

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

The effect of doping beta-tricalcium phosphate with monovalent metal ions (lithium, sodium, and potassium ions) on its thermal stability was evaluated using the formation ratio of alpha-tricalcium phosphate and the rate constant for beta-alpha transformation. The thermal stability of beta-tricalcium phosphate doped with monovalent metal ions was higher than that of pure beta-tricalcium phosphate,and increased with the amount of metal ions. The increase in stability was attributed to the occupation of all calcium sites including vacancy in beta-tricalcium phosphate structure by the calcium ions and monovalent metal ions and the resultant crystal stabilization. However, the thermal stability of beta-tricalcium phosphate doped with monovalent metal ions was lower than that of beta-tricalcium phosphate doped with magnesium ions. These results indicate that the thermal stability of beta-tricalcium phosphate is influenced by the difference in the structural stabilization caused by doping metal ions into different calcium sites in the crystal structure. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1889 / 1894

页数：6

共 45 条

[1]

Characterization of porous β-tricalcium phosphate films formed on alumina ceramics by spray-pyrolysis technique and their in vitro evaluations using osteoblasts [J].