RELAXATION PROCESSES OF 2 GLASS TRANSITIONS FOR A ZR60AL15NI25 AMORPHOUS ALLOY

被引：5

作者：

OKUMURA, H

INOUE, A

MASUMOTO, T

机构：

[1] Graduate Student, Tohoku University, Sendai

[2] Institute for Materials Research, Tohoku University, Sendai

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1992年 / 31卷 / 10期

关键词：

AMORPHOUS ALLOY; GLASS TRANSITION; SUPERCOOLED LIQUID; STORAGE MODULUS; LOSS MODULUS; TIME-TEMPERATURE SUPERPOSITION PROCESS; SHIFT FACTOR; MASTER CURVE; PHASE SEPARATION;

D O I：

10.1143/JJAP.31.3403

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The relaxation behavior for the glass transition of a Zr60Al15Ni25 amorphous alloy with a wide supercooled liquid region is investigated through the changes of dynamic mechanical properties. Temperature-dependent storage and loss moduli reveal two relaxation systems suggesting two glass transitions. The activation energies are 400 and 420 kJ/mol for the lower and the higher temperature relaxations, respectively. Both of these relaxations have wider distribution of the relaxation time than that of the single relaxation of the Debye peak. The appearance of the two relaxation systems is attributed to the phase separation in the amorphous phase observed in the electron micrograph.

引用

页码：3403 / 3407

页数：5

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