# What is thermomechanical coupling?

## What is thermomechanical coupling?

Thermomechanical coupling between temperature and stress fields modifies the heat equation considered for nonequilibrium energy transport. In this case, energy absorbed by the irradiated material is partially dissipated through heat transfer and partially used for thermal expansion of the substrate material.

## What is thermomechanical analysis used for?

Thermomechanical Analysis, or TMA, is a method used to determine the thermal properties of polymeric materials. Using minimal force at a range of temperatures, TMA can be used to find a variety of thermal and mechanical properties, including thermal expansion.

How does thermomechanical analysis work?

Definitions of Thermomechanical Analysis (TMA) A technique in which a deformation of the sample under non-oscillating stress is monitored against time or temperature while the temperature of the sample, in a specified atmosphere, is programmed. The stress may be compression, tension, flexure or torsion.

### What is the difference between TMA and DMA?

DMA is also called DMTA for Dynamic Mechanical Thermal Analysis. DMA data is used to obtain modulus information while TMA gives coefficient of thermal expansion, or CTE. Both detect transitions, but DMA is much more sensitive. Some TMAs can do limited DMA and the PerkinElmerÂ® DMA 8000 is the only DMA that can do TMA.

### What is TMA material?

What is the difference between DSC and TGA?

In brief, a TGA instrument measures a sample’s mass as it’s heated or cooled; DSC measures how much energy a sample absorbs or releases during heating or cooling.

## What is difference between DTA and DSC?

DSC measures the energy required to keep both the reference and the sample at the same temperature whereas DTA measures the difference in temperature between the sample and the reference when the same amount of energy has been introduced into both.

## What is TG and DSC?

The use of thermal techniques such as thermogravimetry (TG) and differential scanning calorimetry (DSC) has been proposed as a reproducible, informative, rapid, low-cost and small-sample consuming method to characterize the complete quality continuum of organic matter in soils and other materials (Plante et al., 2009).