ThermoOptical Measuring Devices (TOM)


TOM_dry is used for the analysis and optimization of ceramic and powder metallurgical drying processes. Drying is necessary after wet forming processes before the green bodies can be debonded. It is time-consuming, energy-intensive and expensive. The drying behaviour of the green bodies is recorded in-situ by means of a precision subfloor scale and a climate-controlled measuring chamber. The flexible temperature control between room temperature and 150 °C as well as adjustable gas flow rates between 1 l/h and 16 l/h allow the adjustment of industry-relevant drying processes. In addition to air with a defined humidity, inert and reactive process gases can subject the sample to laminar gas flow. The volume of the chamber is 180x180x200 mm³, and the maximum sample weight is 250 g.

Using a special drying scale, component weight, flow speed, humidity and temperature can also be measured directly in industrial drying units. The weighing range of the scale can vary between 1 kg and 100 kg.

The measured data, together with other material data measured at Fraunhofer-center HTL such as green strength, viscoelastic material moduli and gas permeability, are employed in special FE models for drying with the goal of optimizing the drying conditions.

Our services:

  • Optimization of ceramic and powder metallurgical drying processes in terms of temperature, humidity and gas flow
  • In-situ measurement of drying kinetics in the laboratory under defined environmental conditions
  • In-situ measurement of drying on components in industrial drying units
  • FE simulation of drying processes

is used for the analysis and optimization of ceramic and powd


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