Sinter-crystallization, phase development and microstructural evaluations of ZnO containing 45S5® glass-ceramics

被引：3

作者：

Norouzi, Ahmad ^{[1
]}

Banijamali, Sara ^{[1
]}

Keshavarzi, Ashkan ^{[1
]}

机构：

[1] Mat & Energy Res Ctr, Ceram Dept, POB 31787-316, Alborz, Iran

来源：

MATERIALS TODAY-PROCEEDINGS | 2018年 / 5卷 / 07期

关键词：

45S5 Bioactive Glass; Sinterability; Crystallization; Zinc Oxide; Microstructure; BIOACTIVE GLASS; BEHAVIOR;

D O I：

10.1016/j.matpr.2018.04.180

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study aimed to explore sinter-crystallization behavior, phase evolution and microstructural features of ZnO containing 45S5 (R) glass-ceramics prepared via sintering procedure. The obtained glass-ceramics were characterized in terms of sinterability parameters, crystallization behavior, phase analysis and microstructural characteristics. Fully densified glass-ceramics were obtained from the studied compositions after one step heat treatment performed at 1050 degrees C for 1h. On the contrary of acceptable sinterability of all studied compositions, ZnO containing glass-ceramics showed better densification behavior rather than ZnO free one. Sodium calcium silicate (Na6Ca3Si6O18) precipitated as the dominant crystalline phase in all glass-ceramics sintered at different temperatures. However, the presence of sodium zinc silicate (Na2ZnSiO4) as the minor crystalline phase was also detectable in the glass-ceramics contained more than 3 weight ratios of ZnO. According to the microstructural evaluation, both crystalline phases with polygonal morphology were homogenously dispersed in the matrix. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：15696 / 15701

页数：6

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