匡敬忠

• 1:江西理工大学资源与环境工程学院

摘要(Abstract)：

以CaO-Al2O3-SiO2系玻璃为研究对象,采用Ozawa方程、Kissinger方程和JMA修正方程研究了冷却方式和加热温度对玻璃析晶动力学的影响。结果表明:化学组成相同的玻璃,冷却速度和加热温度对其析晶活化能E、Avrami指数n和析晶速率指前因子ν都有影响,但加热温度对析晶活化能E的影响更大,并在750℃出现极大值现象。通过玻璃析晶试验发现:冷却速度和加热温度对微晶玻璃主次晶相的析出没有影响,主、次晶相分别是钙长石和榍石。冷却速度和加热温度对析晶活化能E的影响主要来源于析出主、次晶相的比例不同。

关键词(KeyWords)： 冷却-加热;析晶活化能;Avrami指数;析晶速率指前因子;钙铝硅玻璃

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(50864006);; 江西省自然科学基金资助项目(2008GZC0034)

作者(Author): 匡敬忠

DOI: 10.13289/j.issn.1009-6264.2012.01.003

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