| abstract |
The invention concerns a method and device for the heat treatment of hard metals, cermets and/or ceramics in a microwave sintering furnace, the material to be treated being moved together with the resonator relative to one or a plurality of microwave sources (13). The material to be treated (14) is disposed in individual cassettes (10) which, with the exception of an opening necessary for the microwave radiation, consist of material which is impermeable to microwaves and simultaneously form the resonance chamber whose length, height and/or depth in the uncharged state are too small to generate a continuous energy distribution at the microwave frequency used but, in the charged state, permit homogeneous heating. Preferably the length, height and/or depth of the chamber do not exceed sixth wavelengths of the microwave radiation used. |