The effect of calcination and zirconia addition on HAp hot pressed materials

被引：14

作者：

Brzezinska-Miecznik, Jadwiga ^{[1
]}

Macherzynska, Beata ^{[1
]}

Lach, Radoslaw ^{[1
]}

Nowak, Barbara ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, Krakow, Poland

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 10期

关键词：

Composites; Hydroxyapatite; Zirconia; HYDROXYAPATITE; COMPOSITES; HYDROXYLAPATITE; BEHAVIOR;

D O I：

10.1016/j.ceramint.2014.07.108

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

081705 [工业催化]; 082905 [生物质能源与材料];

摘要：

The effect of 5 and 10 vol% additives of zirconia (3Y TOSOH) to hydroxyapatite of natural origin was investigated. Two types of powders were applied; one prepared by mechanical mixing of constituents and the other by calcination at 900 degrees C of such mixtures followed by their milling. Calcined powders lead to the lower level of hydroxyapatite decomposition during hot pressing at 1200 degrees C. Hydroxyapatite, cubic zirconia and beta-TCP (beta-Ca-3(PO4)(2)) were found in the composites. Essential improvement of hardness, fracture toughness and mechanical strength compared to HAp matrix properties occurred. In the case of the material with 10 vol% zirconia additive the preliminary calcination of the starting powder resulted in better properties than in the case of the as-received powder. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：15815 / 15819

页数：5

共 30 条

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