BaO Variation Effect on Crystallization Kinetics of SrO-SiO2-B2O3-ZrO2 Glasses

被引：9

作者：

Walia, Trisha ^{[1
]}

Singh, K. ^{[1
]}

机构：

[1] Thapar Inst Engn & Technol, Sch Phys & Mat Sci, Patiala 147004, India

来源：

SILICON | 2023年 / 15卷 / 08期

关键词：

Glass transition temperature; Activation energy; Crystallization; Sealants; FLUCTUATION FREE-VOLUME; TRANSITION TEMPERATURE; BOROSILICATE GLASSES; PHYSICAL-PROPERTIES; PHASE-FORMATION; DIELECTRIC-PROPERTIES; HEATING RATE; PARAMETERS; CERAMICS; SEALANTS;

D O I：

10.1007/s12633-023-02287-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present investigation, BaO effect is studied on the crystallization kinetics of (40-x)SrO-xBaO-45SiO(2)-10B(2)O(3)-ZrO2 (x = 0, 10, 20, 30, 40 mol %) glasses. To understand the crystallization mechanics, activation energy are calculated using two different approaches, i.e., Kissinger model and Augis and Bennett model. Furthermore, kinetic parameters such as fluctuation free volume (f(g)), Avrami parameter (n) and fragility index (F) are also evaluated for all the glass samples. The replacement of SrO by BaO reduces phase separation in glasses and decrease the devitrification of glasses. The highest and lowest activation energies for crystallization is observed for SB-0 and SB-40 glasses. Based on all the thermal parameters, SB-30 glass could be used as glass sealant in SOFC.

引用

页码：3737 / 3746

页数：10

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