文献类型：期刊文献

英文题名：Nonisothermal study on crystallization kinetics of GeSe₂-As₂Se₃-CdSe chalcogenide glasses by differential scanning calorimeter

作者：Zhao, DH; Zhang, XH; Xia, F; Wang, H; Ma, HL; Adam, JL; Chen, GR

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Inst Inorgan Mat, Shanghai 200237, Peoples R China;[2]Univ Rennes 1, Lab Verres & Ceram, F-35042 Rennes, France

年份：2005

卷号：285

期号：1-2

起止页码：228

外文期刊名：JOURNAL OF CRYSTAL GROWTH

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000233152500031)】；

语种：英文

外文关键词：crystallization kinetics; differential scanning calorimeter; growth models; nucleation; chalcogenide glass

摘要：A newly derived crystallization kinetics equation was presented for investigation on crystallization kinetics of 0.7GeSe(2)-(0.3 -x) As2Se3-xCdSe (x = 0. 1, 0. 15 and 0.2) glasses under nonisothermal conditions. Activation energy (E) was calculated and compared with several previously reported kinetics equations. The calculated Avrami exponent (n) values were all equal to 3, implying the three-dimensional growth of crystals. Crystallization reaction rate function [k(t)] was introduced in the same equation to estimate glass stability, which was in a good agreement with the conventional indication by Delta T = T-p - T-g. The compositional dependence of E and k(t)s was discussed. (c) 2005 Elsevier B.V. All rights reserved.