Use of microwave power for sintering of ceramics leads to faster heating rates, low processing times and enhanced densification rates leading to uniform microstructure compared to those obtained using conventional sintering. It is generally seen that electrically insulating ceramics are poor absorbers of microwaves at room temperature. Dielectric losses of such ceramics increase with increasing temperature and start coupling with microwaves beyond a certain critical temperature Tc. Hence, insulating ceramics are sintered by hybrid heating, where susceptors are used to increase the temperature of the material upto the critical temperature Tc.
Technical key Data:
- Temperature range- 900 to 1700 °C.
- Microwave supply through independent 900 Watt magnetrons
- Microwave susceptors (SiC) for indirect sample preheating
Potentiometer for step less power adjustment 15 - 100 %