Liquid phase separation of Cu-Cr alloys during the vacuum breakdown
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- Liquid phase separation of Cu-Cr alloys during the vacuum breakdown
- 发表刊物：
- JOURNAL OF ALLOYS AND COMPOUNDS
- 摘要：
- The microstructures of the surfaces and cross sections of Cu-Cr contact alloys were analyzed after the vacuum breakdown was repeated for 100 times. The results reveal that the liquid phase separation was involved in the microstructure evolution of the alloys during the breakdown. The Cr-rich phase from the liquid separation featured the morphology of spherical-and sheeted-shaped particles. The sizes of the Cr spheres ranged from several nanometers to hundreds of nanometers, and were not strongly dependent on the compositions of the alloys. The large Cr-rich droplets could be elongated and swirled due to the liquid flow, resulting in the formation of the Cr phase with sheeted-shaped particles. The fractions of Cr sheets increased with the increasing of the Cr contents; however, their sizes decreased significantly, compared with those of their parent alloys.
- 合写作者：
- Wei, Xin; Wang, Jiping; Yang, Zhimao; Sun, Zhanbo; Yu, Demei; Song, Xiaoping
- 是否译文：
- 否
- 发表时间：
- 2011-06-23