Study on glass transition temperature and kinetics of Cu-Zr glassy alloys

被引：5

作者：

Sun, Hui ^{[1
]}

Jian, Zengyun ^{[1
,2
]}

Jiang, Bingqing ^{[2
]}

Chang, Fange ^{[1
]}

Gao, Qian ^{[1
]}

机构：

[1] Xian Technol Univ, Sch Mat & Chem Engn, Xian 710021, Shaanxi, Peoples R China

[2] Xian Technol Univ, Org Dept, Xian 710021, Shaanxi, Peoples R China

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2017年 / 129卷 / 03期

关键词：

Glassy alloys; Vogel-Fulcher-Tammann; Kauzmann temperature; Activation energy; BULK METALLIC-GLASS; DIFFERENTIAL SCANNING CALORIMETRY; CRYSTALLIZATION KINETICS; FORMING ABILITY; MECHANICAL-PROPERTIES; THERMODYNAMICS; FRAGILITY; LIQUID;

D O I：

10.1007/s10973-017-6336-y

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Ideal glass transition temperatures and transition activation energies of Cu46Zr45Al9 metallic glass was investigated using differential scanning calorimetry (DSC). The Vogel-Fulcher-Tammann temperature T (0) and Kauzmann temperature T (k) were determined, respectively, and T (0) is greater than T (k). Meanwhile, activation energies of glass transition E (g), onset crystallization E (x) and crystallization peak E (p) were deduced to be 634.2 +/- 15, 444 +/- 16.1 and 366.8 +/- 25.1 kJ mol(-1), which indicates that glass transition is harder than crystallization process to proceed.

引用

页码：1429 / 1433

页数：5

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