A Beginners Guide to TMA 4000

Thermomechanical Analysis (TMA) is one of the most fundamental analysis techniques as it measures a very basic property of materials. It measures softening the point or glass transition (Tg) as well as tests like Vicat and heat deflection point. All of these can be approximated in a Tg, and all tell you where a material changes from stiff to flexible. You can also measure the coefficient of thermal expansion, a property where, if mismanaged, can lead to failures in electronics, motors and food packaging.

Understand the Basic Questions
  • What is Thermomechanical Analysis?
  • How does TMA work?
  • What kinds of materials can I measure with TMA?
  • What is the coefficient of thermal expansion (CTE) and how do you know if it is accurate?
  • What is free volume, and why is it so important?
  • What is the glass transition and how does it compare to other types of transition?
  • What is the heat set?
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Thermomechanical Analysis