田铁磊,张玉柱,龙跃,张遵乾

• 1:华北理工大学冶金与能源学院
• 2:燕山大学机械工程学院

摘要(Abstract)：

采用差热分析仪及XRD衍射仪确定了高炉渣纤维的玻璃化转变温度、开始析晶温度及析晶相,并在此基础上结合Matusita-sakka方程研究析晶动力学,获得析晶动力学参数。结果表明:不同升温速率条件下高炉渣纤维的玻璃化转变温度为707~721℃,开始析晶温度为847~879℃;但热处理条件下高炉渣纤维的析晶温度700℃,主要是由于不同升温速率下造成温度滞后,同时随着温度的提高及在此温度长期作用下析出的主晶相为黄长石,以及少量钙长石和透辉石。高炉渣纤维晶体的生长因子m为3,表明晶体以三维方式生长,且析晶活化能约为347.287 k J·mol-1。

关键词(KeyWords)： 高炉渣纤维;非晶态;析晶;动力学;生长因子

Abstract:

Keywords:

基金项目(Foundation): 国家科技支撑计划(2012BAE09B00);; 国家自然科学基金(51474090);; 国家青年科学基金(51504080)

作者(Author): 田铁磊,张玉柱,龙跃,张遵乾

DOI: 10.13289/j.issn.1009-6264.2016.01.042

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