Surface Mobile Layer of Polystyrene Film below Bulk Glass Transition Temperature

2001 ◽  
Vol 34 (18) ◽  
pp. 6164-6166 ◽  
Author(s):  
Daisuke Kawaguchi ◽  
Keiji Tanaka ◽  
Atsushi Takahara ◽  
Tisato Kajiyama
Keyword(s):  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Bulk Glass ◽  
Polystyrene Film

Low-Pressure Carbon Dioxide Enhanced Polymer Chain Mobility below the Bulk Glass Transition Temperature

2007 ◽  
Vol 40 (4) ◽  
pp. 1108-1111 ◽  
Author(s):  
Yong Yang ◽  
Mark Ming-Cheng Cheng ◽  
Xin Hu ◽  
Dehua Liu ◽  
Richard J. Goyette ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Polymer Chain ◽  
Low Pressure ◽  
Bulk Glass ◽  
Chain Mobility

Effect of high pressure on glass transition in Zr-Ti-Cu-Ni-Be bulk metallic glass

2002 ◽  
Vol 754 ◽  
Author(s):  
Wei Hua Wang ◽  
Ping Wen ◽  
Yan Hui Zhao ◽  
Ming Xiang Pan ◽  
De Qian Zhao
Keyword(s):  
High Pressure ◽  
Glass Transition ◽  
Transition Temperature ◽  
Glass Transition Temperature ◽  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Free Volume ◽  
Bulk Glass ◽  
Free Volume Theory ◽  
Glass Forming

ABSTRACTA new method is developed to directly exhibit glass transition in Zr-Ti-Cu-Ni-Be bulk glass-forming alloy under high pressure in metallic glass. Via the method, we derive an increase of glass transition temperature, Tg with pressure of 5.6 K/GPa, and a formation volume (ΔVf) of 6.5 Å3 for diffusion and the migration volume (ΔVm) of 6.5 Å3. The glass transition under high pressure is simulated based on the free-volume theory, and the simulations are consistent with the experimental observations.

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