The improved mechanical properties of β-CaSiO3 bioceramics with Si3N4 addition

被引：13

作者：

Pan, Ying ^{[1
,2
]}

Zuo, Kaihui ^{[1
]}

Yao, Dongxu ^{[1
]}

Yin, Jinwei ^{[1
]}

Xie, Yunchuan ^{[1
,2
]}

Xia, Yongfeng ^{[1
]}

Liang, Hanqin ^{[1
]}

Zeng, Yuping ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS | 2016年 / 55卷

关键词：

beta-CaSiO3; Si3N4; Oxidation; Mechanical properties; SILICON-NITRIDE; CALCIUM SILICATE; CERAMICS; STRENGTH; POROSITY; DENSE; BIOACTIVITY; OXIDATION;

D O I：

10.1016/j.jmbbm.2015.10.014

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

The motivation of this study is to investigate the effect of Si3N4 addition on the sinterability of beta-CaSiO3 ceramics. beta-CaSiO3 ceramics with different content of Si3N4 were prepared at the sintering temperature ranging from 1000 degrees C to 1150 degrees C. The results showed that Si3N4 can be successfully used as sintering additive by being oxidized to form SiO2. The beta-CaSiO3 ceramics with 3 wt% Si3N4 sintered at 1100 degrees C revealed flexural strength, hardness and fracture toughness of 157.2 MPa, 4.4 GPa and 2.3 MPa m(1/2) respectively, which was much higher than that of pure beta-CaSiO3 ceramics (41.1 MPa, 1.0 GPa, 1.1 MPa m(1/2)). XRD analysis and SEM observation indicated that the main phase maintained to be beta-phase after sintering. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：120 / 126

页数：7

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