期刊
PHYSICAL REVIEW RESEARCH
卷 4, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevResearch.4.033052
关键词
-
资金
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) [17H06094, 19H00818, 19H05787, 20J10498]
The study observed the phase separation process of amorphous glass in initial and intermediate stages, revealing specific changes in the phase-separated structures. The results indicate that the characteristic changes in phase-separated structures are attributed to the multimetastability of the amorphous phase.
Controlling the phase separation phenomenon can enhance the properties of glass materials, such as transparency and strength. However, the initial and intermediate stages of phase separation of amorphous glass are yet to be understood completely. In this study, we performed an in situ observation on glass through scanning transmission electron microscopy, which possesses a high spatial resolution and chemical sensitivity. We visualized the phase-separated structure in the initial and intermediate stages of phase separation and observed a local and rapid change in the phase-separated structures and the formation of regions with advanced and delayed degrees of phase separation. The results were compared with the phase-field simulation and it was concluded that the characteristic change of the phase-separated structures is attributable to the multimetastability of the amorphous phase.
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