You will find brief explanations on important technical terms from the area of high-temperature technology in our glossary.
Shrinkage means the reduction of volume of a material or workpieces. It happens when drying or cooling off, as well as during sintering/firing processes without application of pressure.
Spalling often occurs in reducing atmospheres. This is caused by the fact that the heating elements cannot form a new protective SiO2 layer. You have two solutions, if you notice that phenomena:
We would be glad to advise you on both solutions.
One of the most important indices for dimensioning electric heating elements is the surface load or area-related performance. The surface load is indicated in Watt per cm2. It measures stress and service life of a heating element.