Thermal Dilatometer

Dilatometry is a powerful method for figuring out how the size of material changes as its temperature changes. Dilatometry can measure many things, such as linear thermal expansion, coefficient of thermal expansion, sintering temperature, shrinkage steps, phase transitions, density change, and softening point.


Dilatometry Experiment:

In a dilatometry experiment, a sample is put into a sample holder, and one end is brought into contact with a push-rod. The sample and holder are then put into a furnace, where the sample is heated, cooled, or kept at the same temperature according to a set program. During the experiment, a very accurate displacement sensing system measures the sample’s linear change in size (whether it grows or shrinks).


The sample length must be 10, 25, or 50 mm.

The sample diameter can’t be bigger than 7 mm.

The system can only be used in the air.

Dilatometry Technical Specifications:

  • The maximum sample diameter is 7 mm.
  • The maximum length change is 4 mm.
  • Length resolution is 10 nm.
  • Temperature resolution is 0.05°c.
  • The sample holder is made of fused silica.
  • Temperature range: 100 to 1000°c.
  • Maximum heating rate: 100°c/min.


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