Quality of sintering and other heat treatments
Heat treatments need precise conditions to yield best results and ideally the processes can be monitored in situ to gain a better understanding. Ceramics and powder metallurgical materials are densified and strengthened by way of sintering. This process determines the quality of the final product – and accounts for a considerable part of production costs.
As sintering shrinkage is the most telling indicator of the sintering state, close monitoring of the shrinkage during the heat treatment can be used to optimize the processing parameters. Weight loss and dimensional changes during debinding provide information on how to optimize debinding cycles. Weight gain and optical inspection allow for the in situ measurement of infiltration processes.
- Monitoring the sintering shrinkage without mechanical impact of the measuring device on the samples
- Recording of any warpage of the sample during sintering even if the sample shape is quite irregular
- Heat treatment in vacuum, inert or reducing atmosphere
- Measurement of weight changes in controlled atmosphere
- Determining the wetting behavior of melts on solid substrates
- Monitoring infiltration processes in situ