(Ba, Sr, Mg)TiO₃를 이용한 입계층 캐패시터의 제작 및 유전특성에 관한 연구 = The preparation and characteristics of (Ba, Sr, Mg)TiO₃ceramic for BL capacitor

다국어 초록 (Multilingual Abstract)

The (0.8BaTiO₃-0.1SrTiO₃-0.1MgTiO₃)+0.006Nb₂O5 ceramics were fabricated by conventional ceramic process. The dielectric property of specimen was investigated that the specimen was sintering temperature at 1,300℃ for 3hours and them annealed at 1,100℃ for 3hours in a atmosphere (air) to be painted on the surface with CuO paste.
The results of the temperature and frequency are varied, the dielectric constant and loss tangent are unsuitable for BL capacitor. The dielectric constants were varied to be negative temperature coefficient(2,000∼3,000) in the temperature range between -10 and 140℃, the dissipation factors (tan δ) were some high(0.1∼0.3). It was not grain insulation, in cause of the some difficult to be annealed temperature with CuO paste and fired atmosphere. But, we have some different annealing temperature and fired atmosphere. it will be suitable BL(Boundary Layer)capacitor.