A detailed study of isothermal crystallization of As2Se3 undercooled liquid

被引：7
作者：
Holubova, Jana [1 ]
Cernosek, Zdenek [1 ]
Cernoskova, Eva [2 ,3 ]
机构：
[1] Univ Pardubice, Fac Chem Technol, Dept Gen & Inorgan Chem, Pardubice, Czech Republic
[2] Czech Acad Sci, Inst Macromol Chem, Joint Lab Solid State Chem, Vvi, Pardubice, Czech Republic
[3] Univ Pardubice, Pardubice, Czech Republic
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2013年 / 114卷 / 03期
关键词：
Nucleation; Crystallization; As2Se3; Differential scanning calorimetry; HOMOGENEOUS CRYSTAL NUCLEATION; STRUCTURAL RELAXATION; SILICATE-GLASSES; KINETICS; GROWTH;
D O I：
10.1007/s10973-013-3110-7
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Isothermal crystallization of an As2Se3 undercooled melt was studied by differential scanning calorimetry and described using the classical theory of nucleation and crystal growth. The maximum rate of nucleation and crystal growth was observed to occur at approximately 235 and 350 A degrees C, respectively. The activation energies of nucleation and crystal growth were determined to be Delta E (D) = 311 kJ mol(-1) and Delta E* = 104 kJ mol(-1), respectively. The temperature dependencies of both the activation free energy of nucleation, Delta G*, and the critical diameter, r*, were also calculated.
引用
收藏
页码：997 / 1002
页数：6
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