CRYSTALLIZATION BEHAVIOR OF A BULK AMORPHOUS MG62CU26Y12 ALLOY

被引：7

作者：

WU, SS ^{[1
]}

CHIN, TS ^{[1
]}

SU, KC ^{[1
]}

机构：

[1] IND TECHNOL RES INST,MAT RES LABS,CHUTUNG 310,TAIWAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1994年 / 33卷 / 7A期

关键词：

AMORPHOUS ALLOY; MG-CU-Y ALLOY; CRYSTALLIZATION BEHAVIOR; ACTIVATION ENERGY; KISSINGER PEAK SHIFT METHOD;

D O I：

10.1143/JJAP.33.4021

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The crystallization temperature, the associated activation energy and the crystallized structure of a bulk amorphous Mg62Cu26Y12 alloy with a diameter of 2.5 mm were studied. It possesses a one-step crystallization behavior. The crystallization reaction was found to be represented by: AM(MG62Cu26Y12)-->Mg2Cu + MgY + CuY + Mg, (T(x) = 188-degrees-C, E(ac) = 134 kJ/mol) where AM represents the amorphous state, T(x) the crystallization temperature at an infinitesimal heating rate, and E(ac) the associated activation energy. The amount of crystalline phases were found to be Mg2Cu:MgY:CuY = 76:17:7. The Mg phase is identifiable only by high resolution electron microscopy, not by X-ray diffraction. The crystallization leads to a sharp rise in electrical resistivity which is reversed to those of iron-based amorphous alloys.

引用

页码：4021 / 4024

页数：4

共 13 条

[1] ON MECHANISMS OF STRUCTURAL RELAXATION IN A PD48NI32P20 GLASS [J].