Preparation of Thermo-Stable Bulk Metallic Glass of Nd60Cu20Ni10Al10 by Rapid Compression

Preparation of Thermo-Stable Bulk Metallic Glass of Nd60Cu20Ni10Al10 by Rapid Compression

Melt of Nd60Cu20Ni10Al10 alloy is solidified by rapid compression from 0.1 to 5.5 GPa at 793K and from 0.1 to 3.2 GPa at 873K within 20 ms, separately. A fully bulk metallic glass is obtained by the rapid compression method. By comparing with as-cast bulk metallic glass (BMG), it is found that Nd60C...

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Veröffentlicht in:Chinese physics letters 2010-09, Vol.27 (9), p.096202-096202
Hauptverfasser: Chao-Sheng, Yuan, Xiu-Ru, Liu, Ru, Shen, Zhen-Ya, Sun, Bo, Chen, Shi-Jie, Lv, Zhu, He, Yun, Hu, Shi-Ming, Hong
Format: Artikel
Sprache:eng
Schlagworte:
Amorphous materials
Compressing
Melts
Metallic glasses
Phase diagrams
Stability
Thermodynamics
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Zusammenfassung:Melt of Nd60Cu20Ni10Al10 alloy is solidified by rapid compression from 0.1 to 5.5 GPa at 793K and from 0.1 to 3.2 GPa at 873K within 20 ms, separately. A fully bulk metallic glass is obtained by the rapid compression method. By comparing with as-cast bulk metallic glass (BMG), it is found that Nd60Cu20Ni10Al10 BMG prepared by rapid compression exhibits a higher thermodynamic stability and a paramagnetic property. The relationship between the glass-formation temperature and the pressure in rapid compression for the BMG is demonstrated in the P -- T phase diagram.
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/27/9/096202