Processing and properties of biphasic calcium phosphates bioceramics obtained by pressureless sintering and hot isostatic pressing

被引：65

作者：

Descamps, Michel ^{[1
,2
]}

Boilet, Laurent ^{[3
]}

Moreau, Gerard ^{[1
,2
]}

Tricoteaux, Arnaud ^{[1
,2
]}

Lu, Jianxi ^{[4
]}

Leriche, Anne ^{[1
,2
]}

Lardot, Veronique ^{[3
]}

Cambier, Francis ^{[3
]}

机构：

[1] Univ Lille Nord France, LMCPA, F-59000 Lille, France

[2] UVHC, ZI Champ Abbesse, F-59600 Maubeuge, France

[3] BCRC EMRA, B-7000 Mons, Belgium

[4] Biocetis SARL, F-52800 Nogent, France

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2013年 / 33卷 / 07期

关键词：

Biphasic calcium phosphates; Hot isostatic pressing; Pressureless sintering; Density; Mechanical properties; BETA-TRICALCIUM PHOSPHATE; MECHANICAL-PROPERTIES; HA/BETA-TCP; HYDROXYAPATITE; CERAMICS; BEHAVIOR; TEMPERATURE; IMPROVEMENT; ALUMINA; MICROSTRUCTURE;

D O I：

10.1016/j.jeurceramsoc.2012.12.020

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：

Calcium phosphate powders were obtained from coprecipitation method using diammonium phosphate and calcium nitrate solutions. The adjustment of experimental parameters and Ca/P initial ratio allowed synthesizing stoichiometric HA and beta-TCP powders and four biphasic calcium phosphates (BCP) with compositions equal to 20/80,40/60, 60/40, 80/20, of HA and TCP respective in mass. Two sintering techniques, pressureless sintering and hot isostatic pressing (HIP) were performed to compare the sinterability of the stoichiometric and biphasic compounds. By pressureless sintering, densities higher than 98% were obtained. Results illustrate the negative impact of hydroxyapatite on the densification of BCP but its benefit effect on grain growth inhibition. After HIP treatment, transparent ceramics were obtained. The mechanical behavior of these fully densified compounds was examined in order to determine the role of the chemical composition on mechanical properties. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1263 / 1270

页数：8