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.
|主出版物標題||Materials Science Forum|
|發行者||Trans Tech Publ|
|出版狀態||已發佈 - 1999|
|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||Proceedings of the 1998 International Symposium on Metastable, Mechanical Alloyed and Nanocrystalline Materials, ISMANAM-98|
|城市||Wollongong, Sydney, Aust|
|期間||12/7/98 → 12/12/98|
ASJC Scopus subject areas
- Materials Science(all)
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.