Fusibility analysis can be carried out thanks to the heating microscope, which allows the direct observation of materials behaviour during a heating cycle. This technique can be applied to direct characterization of glazes, glasses, powders for continuous casting, coal, slag, ashes, etc…

The new generation heating microscopes allow to analyze the behaviour of materials during a fast heat treatment thanks to a computerised image analysis.The system software automatically analyses the sample images acquired during the test at predetermined temperature or time intervals.

Thanks to calculations using geometrical parameters of the test piece (height, width, contact angle), it is able to identify specific shapes assumed by the sample during the heating process, such as: Deformation (Softening), Sphere, Hemisphere and Flow (Melting) Temperatures.