Thermomechanical Analysis (TMA) and its application to polymer systems

Adams, Jillian Cathleen¹ 

[1]Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

关键词: Analytical Chemistry;    Material Science;    Thermomechanical Analysis;    TMA;    polymers;    glass transition temperature;    Tg;    coefficient of thermal expansion;    CTE;   

DOI  :  10.2172/1254935
RP-ID  :  LA-UR--16-23707
PID  :  OSTI ID: 1254935

学科分类：材料科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Thermomechanical analysis (TMA) instruments are used to measure dimensional changes as a sample is heated or cooled. Data obtained from these instruments can be used to calculate the glass transition (Tg) and the coefficient of thermal expansion (CTE). Commonly, materials expand when heated and contract when cooled; however, the rate of such changes depends largely on the type of material. In manufacturing, it is important to use components with similar CTE values to avoid product failure, leaks, or a build-up of thermal stress. Therefore, TMA is a straightforward, useful tool in research and industry.