Influence of Zn/Ba ratio on crystallization, sintering behavior and properties of CaO-Al2O3-SiO2 glass-ceramics

被引：9

作者：

Mu, Ningbo ^{[1
]}

Chen, Daimeng ^{[1
]}

Li, Bo ^{[1
,2
,3
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Integrated Circuit Sci & Engn, Chengdu, Peoples R China

[2] State Key Lab Elect Thin Films & Integrated Device, Chengdu, Peoples R China

[3] Natl Engn Res Ctr Electromagnet Radiat Control Mat, Chengdu, Peoples R China

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2023年 / 622卷

关键词：

Glass-ceramics; Sintering kinetics; Crystallization kinetics; MECHANICAL-PROPERTIES; DIELECTRIC-PROPERTIES; MICROSTRUCTURE; WOLLASTONITE;

D O I：

10.1016/j.jnoncrysol.2023.122662

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 influence of Zn/Ba ratio on crystallization, sintering behavior and properties of CaO-Al2O3-SiO2 (CAS) glass-ceramics was investigated. As the Zn/Ba ratio increases, the main crystal phase changes from wollastonite (CaSiO3) to hardystonite (Ca2ZnSi2O7). A proper Zn/Ba ratio facilitates the sintering and crystallization pro-cesses, thereby resulting in a dense structure and enhancing mechanical strength. CAS glass-ceramics with a Zn/ Ba ratio of 4/6 sintered at 950 degrees C exhibit superior characteristics, including a flexural strength of 193 MPa, Young's modulus of 79 GPa, thermal expansion coefficient of 5.11 x 10-6/degrees C, dielectric constant of 6.58, and dielectric loss of 2.7 x 10-3.

引用

页数：8

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