Formation of Cu-Zr-Ti amorphous alloys with significant supercooled liquid region by mechanical alloying

P. Y. Lee, C. K. Lin, G. S. Chen, R. F. Louh, K. C. Chen

研究成果: 書貢獻/報告類型章節

1 引文 斯高帕斯(Scopus)

摘要

The amorphous Cu90-xZrxTi10 (x=20 approx. 80), Cu80-xZrxTi20 (x=30 approx. 50), Cu90-xZrxTi30 (x=30, 40) and Cu40Zr20Ti40 alloys were successfully synthesized by mechanical alloying mixtures of pure crystalline Cu, Ti and Zr powders with SPEX high energy ball mill. These ranges are similar to those for amorphous alloys produced by melt-spinning or argon atomization techniques. The structure and thermal stability of these alloys were analysed by x-ray diffraction and differential scanning calorimeter. The results indicate that the replacement of Ti by Zr increases the chemical driving force of the amorphization reaction and the interaction of dissimilar atoms of the Cu-Ti-Zr ternary system. Several amorphous alloy samples were found to exhibit a wide supercooled liquid region before crystallization. The temperature interval of the supercooled liquid region defined by the difference between Tg and Tx, i.e. Δ Tx (=Tg -Tx), is 55K for Cu50Zr30Ti20, 51K for Cu60Zr10Ti30, 61 K for Cu40Zr30Ti30 and 40K for Cu40Zr20Ti40.
原文英語
主出版物標題Materials Science Forum
發行者Trans Tech Publ
頁面67-72
頁數6
312
出版狀態已發佈 - 1999
對外發佈Yes
事件Proceedings of the 1998 International Symposium on Metastable, Mechanical Alloyed and Nanocrystalline Materials, ISMANAM-98 - Wollongong, Sydney, Aust
持續時間: 十二月 7 1998十二月 12 1998

其他

其他Proceedings of the 1998 International Symposium on Metastable, Mechanical Alloyed and Nanocrystalline Materials, ISMANAM-98
城市Wollongong, Sydney, Aust
期間12/7/9812/12/98

ASJC Scopus subject areas

  • Materials Science(all)

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  • 引用此

    Lee, P. Y., Lin, C. K., Chen, G. S., Louh, R. F., & Chen, K. C. (1999). Formation of Cu-Zr-Ti amorphous alloys with significant supercooled liquid region by mechanical alloying. 於 Materials Science Forum (卷 312, 頁 67-72). Trans Tech Publ.