Reaction sintering and mechanical properties of hydroxyapatite-zirconia composites with calcium fluoride additions

被引：33
|
作者：
Kim, HW [1 ]
Koh, YH [1 ]
Yoon, BH [1 ]
Kim, HE [1 ]
机构：
[1] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151742, South Korea
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2002年 / 85卷 / 06期
关键词：
D O I：
10.1111/j.1151-2916.2002.tb00328.x
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 effects of calcium fluoride (CaF2) additions on the densification and mechanical properties of hydroxyapatite-zirconia composites (HA-ZrO2) were investigated. When small amount of CaF2 was added, the density of the composites was markedly enhanced. The reactions of HA with CaF2, which led to the formation of fluorapatite (FA), were attributed to the observed improvements in densification. When HA-20-vol%-ZrO. composites were sintered, with the addition of 5 vol% of CaF2. in air at 1300degreesC, the density of the specimen approached 98% of the theoretical value. The flexural strength and fracture toughness of the composites were also improved, as a result of the enhanced densification.
引用
收藏
页码：1634 / 1636
页数：3
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