MICROWAVE
TECHNOLOGY
Unlike radiant heat, which is conducted from the outer surface of a sample to the interior, microwaves generate heat immediately within the body of the material. This combined approach produces faster processing rates than both radiant-only and microwave-only systems, which reduces energy usage, throughput times and emissions. More consistent properties can also be achieved in some materials, including greater strength, improved yield and reduced formation of undesirable phases. Processors can also take advantage of the selective heating characteristic of microwaves. The design of the furnaces combines the controllability of the radiant elements with the thermal equalising effect of the microwave heating system.
Successful applications for microwave-assisted heating include precious metals assaying, burning off wax castings moulds and sintering high-performance ceramics.