Ceramic capacitor's sintering temperature

Sintering temperature refers to the temperature at which the refractory material or ceramic green body reaches the minimum porosity, the largest shrinkage, the most compact product, the best performance, or a solid aggregate state through sintering. The temperature during sintering is called sintering temperature. If the temperature continues to rise, the green body will begin to deform, soften, and overheat and expand. The temperature range between the sintering temperature and the onset temperature is called the sintering temperature range.

Ceramic capacitors undergo complex physical and chemical changes during the sintering process, such as dehydration of raw materials, melting of fusible substances, formation of liquid phases, disappearance of old crystal phases, constant changes in the amount of compounds generated in new crystal phases, and liquid phases. Constant changes in composition, quantity and viscosity. At the same time, the porosity of ceramics is gradually reduced and the density is continuously increased to achieve a small porosity of ceramic capacitors. The state when the density is high is called sintering, and the temperature during sintering is called sintering temperature.

The shrinkage and porosity of ceramic capacitors change as the temperature rises during heating. When the porosity begins to decrease and the linear shrinkage is less than or equal to 6%, the corresponding temperature is called the beginning of the sintering temperature. As the temperature rises, the porosity It will continue to decrease until a certain temperature, when the shrinkage rate reaches more than 95% of the theoretical value, it is the temperature at which sintering is completed. Select a suitable temperature in the sintering range. As the high temperature of the sintered material, it is technically called sintering temperature.

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