The calcination and sintering behavior of barium strontium titanate was investigated using microwave power absorption. With microwave power, BaCO3, SrCO3 and TiO2 powders were calcined at 1100°C for 45 min, whereas conventional calcination requires typically more than 5 h at 1150°C. Pressed samples of microwave calcined Ba0.65Sr0.35TiO3 were sintered in 30 min at 1350°C using a microwave cavity. The permittivity and loss tangent of the sintered samples were also measured. It is shown that microwave calcination and sintering lead to an improvement in the dielectric properties.
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering