Kinetics of Glass Transition of Zr41Ti14Cu12.5Ni10Be22.5 AlloySolidified in a Drop Tube
LI Gong1,2, SUN Li-Ling2,3, LIU Ri-Ping1, JING Qin1, ZHANG Jun2, Li Qiang1, WANG Wen-Kui1,2
1College of Material Sciences and Chemical Engineering, Yanshan University, Qinhuangdao 066004
2Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080
3National Microgravity Laboratory, Chinese Academy of
Sciences, Beijing 100080
Kinetics of Glass Transition of Zr41Ti14Cu12.5Ni10Be22.5 AlloySolidified in a Drop Tube
LI Gong1,2;SUN Li-Ling2,3;LIU Ri-Ping1;JING Qin1;ZHANG Jun2;Li Qiang1;WANG Wen-Kui1,2
1College of Material Sciences and Chemical Engineering, Yanshan University, Qinhuangdao 066004
2Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080
3National Microgravity Laboratory, Chinese Academy of
Sciences, Beijing 100080
Abstract： Droplets of Zr41Ti14Cu12.5Ni10Be22.5 glass-forming alloy with different sizes are solidified in a drop tube containerless process. The glass transition temperature Tg of Zr41Ti14Cu12.5Ni10Be22.5 glassy spheres solidified with different cooling rates is investigated by using a differential scanning calorimeter. It was found that all the amorphous spheres show an increase of Tg with the heating rate. The glassy spheres have a unique value for glass transition activation energy Eg= 435.50kJ/mol, which is independent of cooling rate q. The insensitivity of Tg to q is interpreted by an extension of the free volume model for flow.
(Self-diffusion in metals, semimetals, and alloys)
引用本文:
LI Gong;SUN Li-Ling;LIU Ri-Ping;JING Qin;ZHANG Jun;Li Qiang;WANG Wen-Kui;. Kinetics of Glass Transition of Zr41Ti14Cu12.5Ni10Be22.5 AlloySolidified in a Drop Tube[J]. 中国物理快报, 2002, 19(8): 1148-1151.
LI Gong, SUN Li-Ling, LIU Ri-Ping, JING Qin, ZHANG Jun, Li Qiang, WANG Wen-Kui,. Kinetics of Glass Transition of Zr41Ti14Cu12.5Ni10Be22.5 AlloySolidified in a Drop Tube. Chin. Phys. Lett., 2002, 19(8): 1148-1151.
2002, Vol. 19 
