Non-isothermal crystallization kinetics of ZnO-BaO-B2O3-SiO2 glass

被引：54

作者：

Arora, A. ^{[1
]}

Shaaban, E. R. ^{[2
]}

Singh, K. ^{[1
]}

Pandey, O. P. ^{[1
]}

机构：

[1] Thapar Univ, Sch Phys & Mat Sci, Patiala 147004, Punjab, India

[2] Al Azhar Univ, Fac Sci, Dept Phys, Assiut 71542, Egypt

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2008年 / 354卷 / 33期

关键词：

glass-ceramics; glass transition;

D O I：

10.1016/j.jnoncrysol.2008.05.035

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：

Glass of composition 40SiO(2)-30BaO-20ZnO-10B(2)O(3) (mol%) Was made by conventional melting and casting process. Crystallization kinetics of above glass has been investigated under non-isothermal conditions, using the formal theory of transformations for heterogeneous nucleation. The procedure is applied to the experimental data obtained by differential thermal analysis (DTA). using continuous-heating techniques. The crystallization results are analyzed, and both the activation energy of crystallization process as well as the crystallization mechanism is characterized. Dilatometric measurement of this glass was also done and data obtained was used to calculate the viscosity of the formed glass. Development of crystalline phases on thermal treatments of the glass at various temperatures has been analyzed by X-ray diffraction. Microstructure of the crystalline phases was investigated by scanning electron microscopy (SEM) and the development of various structural features with variation in heat treatment cycle was observed. The nucleation and growth of these phases in the matrix of glass has been described and discussed. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：3944 / 3951

页数：8

共 35 条

[1] Granulation, Phase Change, and Microstructure - Kinetics of Phase Change. III
Avrami, M
[J]. JOURNAL OF CHEMICAL PHYSICS, 1941, 9 (02) : 177 - 184
[2] Avrami M., 1940, J CHEM PHYS, V8, P212, DOI 10.1063/1.1750631
[3] RELATION BETWEEN (APPARENT) 2ND-ORDER TRANSITION TEMPERATURE AND MELTING POINT
BEAMAN, RG
[J]. JOURNAL OF POLYMER SCIENCE, 1952, 9 (05): : 470 - 472
[4] Davis MJ, 1998, AM MINERAL, V83, P1008
[5] FULCHER GS, 1925, J AM CERAM SOC, V8, P399
[6] GOEL A, 2006, J EUR CERAM SOC
[7] GOEL A, 2006, CERAM INT
[8] Holand W., 2002, GLASS CERAMIC TECHNO
[9] Ivankovic H, 2002, GLASS SCI TECHNOL, V75, P314
[10] Jackson K. A., 1965, ACTA METALL, V13, P1212, DOI DOI 10.1016/0001-6160(65)90061-1

← 1 2 3 4 →