Research On Double Function Strontium Titanate Component

In this paper, the mechanism of the double function strontium titanate component and the technique used in the production procedure is analysed. My aim is to provide the feasible formulation and technique for the industrial production, as to enhance the product quality and the rate of qualification. Begin with the comparation of two widely used methods producing the strontium titanate, the oxalate decomposition method shows its advantage hi the microstructure and future performance. The effect of CaCO3 is studied, and so is the effect of the donor dopant, such as Nb2O5, Y2O3 and La2O3. The dopant of TiO2 is also considered, which involve Ti/Sr ratio, sintering temperature, oxygen partial pressure, donor dopant, grain growth and future electric performance. This research shows the importance of considering the effect factor comprehensively in the research of component. The factorial test method was used to investigate the influence of Cu and alkali metals, the mechanism is explained from the point of view of the microstructure. The formation of the boundary layer is introduced. Mn is widely used in the electronic ceramic, here I calculate its phase-change temperature from both theory and experiment result, we get almost the same outcome, by the way, its function as acceptor and its influence on the electric property is analysed. At last, I put forward the question of cooperation of the silver paste and the ceramic disk, and give a solution to improve the uniformity of voltage among the three electrodes.