上海交通大学学报

上海交通大学学报（自然版）

• 物理 • 上一篇    下一篇

单面和双面沉积甘油的玻璃化转变力学谱比较

袁颖憨，应学农，朱劲松   

  1. （南京大学 固体微结构国家重点实验室； 物理系， 南京 210093）
  • 收稿日期:2009-05-19 修回日期:1900-01-01 出版日期:2010-05-31 发布日期:2010-05-31

Comparative Studies of Mechanical Spectra of Glycerol by Single and Double Layer Depositing CompositeReed Vibration Methods

YUAN Yinghan，YING Xuenong，ZHU Jinsong   

  1. (National Laboratory of Solid State Microstructures;Department of Physics, Nanjing University, Nanjing 210093, China)
  • Received:2009-05-19 Revised:1900-01-01 Online:2010-05-31 Published:2010-05-31

摘要： 基于复合体系簧振动方法，比较了单面和双面沉积时甘油的玻璃化转变力学谱.结果表明：沉积面积对甘油力学谱的影响不大；在单面沉积时，其升、降温过程中的力学谱的差异明显，且降温过程中的模量虚部峰所对应的温度高于升温过程的相应温度，显示出非本征的转变行为；而在双面沉积时，其升、降温过程中的模量虚部峰所对应的温度基本重合，表明其更具可靠性.

关键词: 复合体系, 簧振动方法, 内耗, 玻璃化转变

Abstract: A method was designed to measure the mechanical spectrum of materials from liquid to solid state in a composite reed vibration system. More experiments were performed to check the reliability of this method with the variation of deposited area. Negligible differences in the spectra are found with different deposited areas. However, a clear distinction is observed between single layer and double layer depositing. Considering the results of both cooling and subsequent heating routes, it seems more reliable using double layer depositing.

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