Thermomechanical Analysis

Thermomechanical Analysis
TMA measurement of dimensional change (shrinkage and expansion) of oriented polyethylene film acquired in tensile mode

Thermomechanical analysis (TMA) probes the response of the sample’s thermal, dynamic, and static-mechanical properties as temperature is changed over time.

Strengths

No data available at this time.

Limitations
  • Data quality is hindered for rough, asymmetric, or otherwise irregularly shaped samples
  • Destructive analysis
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Thermomechanical Analysis (TMA)
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Example Outputs
<p>TMA measurement of dimensional change (shrinkage and expansion) of oriented polyethylene film acquired in tensile mode.</p>

TMA measurement of dimensional change (shrinkage and expansion) of oriented polyethylene film acquired in tensile mode.

<p>TMA measurement of multilayer film thickness by a penetration test. Layer thickness is annotated on the plot</p>

TMA measurement of multilayer film thickness by a penetration test. Layer thickness is annotated on the plot

Sample Requirements
  • Solid phase
  • Maximum dimensions: 26 mm (L) x 4.7 mm (W) x 1.0 mm (T)
Instruments Used for TMA
TA Instruments Q400EM

TA Instruments Q400EM

  • Temperature Range: -150 to 1000 °C
  • Displacement Resolution: < 0.5 nm
  • Force Range: 0.001 to 2 N

View Instrument Spec Sheet

How TMA Works

During a TMA measurement, a probe is set at rest on the surface of a sample, with no applied force. Then, heat is applied, causing temperature to rise, and inducing material property changes that deform the specimen.

Hyper-fine measurements are taken of the probe’s vertical displacement, illuminating the sample’s morphological and mechanical response to temperature flux.

During heating, one can also apply a controlled force across the probe (either dynamic/variable or unchanging/static), enabling different measurement modes that assess a wide assortment of mechanical properties as a function of temperature.

Additional Resources

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