Calculation about kinetic parameters for non-isothermal crystallization of amorphous alloy based on thermal analysis techniques

	Calculation about kinetic parameters for non-isothermal crystallization of amorphous alloy based on thermal analysis techniques
	Yuan, Zi-Zhou; Chen, Xue-Ding; Wang, Bing-Xia
	2008-02-01
发表期刊	Cailiao Kexue yu Gongyi/Material Science and Technology
ISSN	10050299
卷号	16 期号:1 页码:103-106
摘要	To correctly select calculation methods of the kinetic parameters for non-isothermal crystallization of amorphous alloys, the methods and their principia to calculate activation energy and determine the kinetic model of non-isothermal crystallization were introduced and summarized in mathematics. Analyses indicate that model-free isoconversion methods are the most reliable ones. And they are categorized into three groups, namely the rate-isoconversion methods, the isoconversion methods based on temperature integral approximations, and maximum rate methods. In the case of uncertainty over baselines of the thermal analysis data existing, the second group methods give more accurate activation energy values than the first group methods. For the two methods to determine the kinetic model, namely Surinach curve fitting procedure and Popesc curve fitting procedure, the Popesc curve fitting procedure is less affected by errors and gives more reliable results. Because it can conduct data obtained from experiments carried out under various heating rates without preliminary computation or assumption of the conversion rate constant.
关键词	Activation energy Calculations Crystallization kinetics Thermoanalysis Parameters calculation Thermal analysis
收录类别	EI
语种	中文
出版者	Harbin Institute of Technology, P.O. Box 136, Harbin, 150001, China
EI入藏号	20081711223026
EI主题词	Amorphous alloys
EI分类号	801.4 Physical Chemistry - 921 Mathematics - 933.2 Amorphous Solids
来源库	Compendex
分类代码	801.4 Physical Chemistry - 921 Mathematics - 933.2 Amorphous Solids
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/111806
专题	材料科学与工程学院土木工程学院
作者单位	State Key Laboratory of Advanced Non-Ferrous Materials, Lanzhou University of Technology, Lanzhou 730050, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Yuan, Zi-Zhou,Chen, Xue-Ding,Wang, Bing-Xia. Calculation about kinetic parameters for non-isothermal crystallization of amorphous alloy based on thermal analysis techniques[J]. Cailiao Kexue yu Gongyi/Material Science and Technology,2008,16(1):103-106.
APA	Yuan, Zi-Zhou,Chen, Xue-Ding,&Wang, Bing-Xia.(2008).Calculation about kinetic parameters for non-isothermal crystallization of amorphous alloy based on thermal analysis techniques.Cailiao Kexue yu Gongyi/Material Science and Technology,16(1),103-106.
MLA	Yuan, Zi-Zhou,et al."Calculation about kinetic parameters for non-isothermal crystallization of amorphous alloy based on thermal analysis techniques".Cailiao Kexue yu Gongyi/Material Science and Technology 16.1(2008):103-106.