Pressure effect of glass transition temperature in Zr[sub 46.8]Ti[sub 8.2]Cu[sub 7.5]Ni[sub 10]Be[sub 27.5] bulk metallic glass

Jiang, J.Z.; Roseker, W.; Sikorski, M.; Cao, Q.P.; Xu, F.
March 2004
Applied Physics Letters;3/15/2004, Vol. 84 Issue 11, p1871
Academic Journal
Pressure effects on glass transition temperature and supercooled liquid region of a Zr[sub 46.8]Ti[sub 8.2]Cu[sub 7.5]Ni[sub 10]Be[sub 27.5] bulk glass have been investigated by performing in situ high-temperature and high-pressure x-ray powder diffraction measurements using synchrotron radiation. The glass transition was detected from the change of the slope of peak position as a function of temperature. It is found that the glass transition temperature increases with pressure by 4.4 K/GPa for the Zr[sub 46.8]Ti[sub 8.2]Cu[sub 7.5]Ni[sub 10]Be[sub 27.5] bulk glass, and the supercooled liquid range decreases with pressure by 2.9 K/GPa in a pressure range of 0–2.2 GPa. This method opens a possibility to study the pressure effect of glass transition process in glassy systems under high pressures (>1 GPa). © 2004 American Institute of Physics.


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