物理化学学报 >> 1990, Vol. 6 >> Issue (02): 220-223.doi: 10.3866/PKU.WHXB19900217

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SeTe8Sb1非晶合金的玻璃转变

刘雄; 高逸群; 陈湘建   

  1. 中国有色金属工业总公司贵金属研究所 昆明
  • 收稿日期:1988-05-05 修回日期:1988-12-10 发布日期:1990-04-15
  • 通讯作者: 刘雄

The Glass Transition of NON-Crystal Alloy SeTe8Sb1

Liu Xiong; Gao Yi-Qun; Chen Xiang-Jian   

  1. Institute of Precious Metals, Kunming
  • Received:1988-05-05 Revised:1988-12-10 Published:1990-04-15
  • Contact: Liu Xiong

Abstract: The process of glass transition on the non-crystal SeTe_8Sb_1 has been researched using low temperature differential scanning calorimetry (DSC). The following conclusions are deduced: this process is a second-order phase transformation, the stronger endotherm displayed in it is imputed to hysteresis of the transition. The temperature of glass transition in heating process decrease with reduction of the cooling rate while forming glass. The activation energy of glass transition quickly increases from 174 kJ·mol. (at quenching rate ~10~4 K·min~(-1)) to 399 kJ·mol~(-1). (at cooling rate ~10 K·min~(-1)) So that the glass obtained at lower cooling rate is more stable than that obtained at higher rate.