Continuous measurement of ultrasonic elastic wave velocities, X-ray radiography and X-ray diffraction of Zr50Cu40Al10 metallic glass at high pressure and high temperature conditions

IF 1.2 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

High Pressure Research Pub Date : 2021-07-03 DOI:10.1080/08957959.2021.1941000

Y. Kono, Y. Higo, S. Gréaux, Y. Shibazaki, R. Yamada, H. Kuwahara, N. Kondo

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引用次数: 2

Abstract

ABSTRACT A new experimental setup to continuously and automatically measure ultrasonic elastic wave velocities, X-ray radiography, and X-ray diffraction in large volume press is developed to explore structural change of amorphous materials at in situ high pressure and high temperature conditions. A continuous measurement for Zr50Cu40Al10 metallic glass is carried out during the heating process from 304 to 1102 K under high pressure conditions of 6.8–8.6 GPa. The sample length, elastic wave velocities, and Poisson’s ratio show marked changes at 611, 745, 825, and 874 K, which are interpreted as glass transition temperature (Tg ) at 611 K, two polyamorphic structural changes at 745 and 825 K, and crystallization above 874 K, respectively. We find that the 1.2Tg temperature (733 K at ∼8 GPa), where simulations study predicted occurrence of thermal rejuvenation, corresponds to the temperature of the polyamorphic structural change (745 K) in Zr50Cu40Al10 metallic glass.

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Zr50Cu40Al10金属玻璃在高压和高温条件下超声弹性波速度的连续测量、X射线照相和X射线衍射

摘要开发了一种新的实验装置，用于在大体积压力机中连续自动测量超声弹性波速、X射线照相和X射线衍射，以探索非晶材料在原位高压和高温条件下的结构变化。在304到1102的加热过程中，对Zr50Cu40Al10金属玻璃进行了连续测量 K在6.8–8.6的高压条件下 GPa。样本长度、弹性波速和泊松比在611745825和874处显示出显著变化 K、其被解释为611的玻璃化转变温度（Tg） K、 745和825的两次多晶结构变化 K、结晶度高于874 K、分别。我们发现1.2Tg的温度（733 K在~8 GPa），其中模拟研究预测了热再生的发生，对应于多晶结构变化的温度（745 K）在Zr50Cu40Al10金属玻璃中。

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来源期刊

High Pressure Research 物理-物理：综合

CiteScore

3.80

自引率

5.00%

发文量

审稿时长

2 months

期刊介绍： High Pressure Research is the leading journal for research in high pressure science and technology. The journal publishes original full-length papers and short research reports of new developments, as well as timely review articles. It provides an important forum for the presentation of experimental and theoretical advances in high pressure science in subjects such as: condensed matter physics and chemistry geophysics and planetary physics synthesis of new materials chemical kinetics under high pressure industrial applications shockwaves in condensed matter instrumentation and techniques the application of pressure to food / biomaterials Theoretical papers of exceptionally high quality are also accepted.