Glass transition behaviour of Zr- and Ti-based binary amorphous alloys
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ID: 272086
1994
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Abstract
A study has been made to investigate the effects of free-volume fraction, steady state viscous flow temperature and viscosity on the glass transition and viscous flow behaviour of Cux Zr100−x (x = 40, 50 and 60), NixZr100−x (x = 40 and 50) and CuxTi100−x (x = 40 and 50) amorphous alloys. It was observed that the displacement at Tx increases in the order Cu40Zr60 > Ni40Zr60 > Cu40Ti60. We found that this order can be explained by the free-volume fraction and maximum displacement rate at Tvs. The relationship between viscosity and free-volume fraction below Tx is consistent with Doolittle's empirical formula for the CuZr, CuTi and NiZr systems. It is presumed that the kinetics of free-volume production and annihilation are involved in the thermal stability and glass transition temperature.
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| Reference Key |
masumoto1994materialsglass
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| Authors | Wha-Nam Myung,Hyun-Goo Kim,T Masumoto;Wha-Nam Myung;Hyun-Goo Kim;T Masumoto; |
| Journal | materials science and engineering: a |
| Year | 1994 |
| DOI |
10.1016/0921-5093(94)90204-6
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