一种高压低损耗介质材料及其制备方法
By optimizing the composition and manufacturing process of the dielectric material in high-voltage ceramic capacitors, the problems of low dielectric constant, high loss, and poor stability of the dielectric material have been solved, enabling efficient and stable high-voltage applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- KUNSHAN QINGYUAN ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-07-17
AI Technical Summary
Existing high-voltage ceramic capacitors have low dielectric constants, high dielectric losses, poor withstand voltage and high-temperature stability, and contain harmful elements, making it difficult to maintain stable performance under high frequency and high electric field conditions.
Using barium titanate, strontium titanate, bismuth oxide, etc. as the main raw materials, and by doping with Nb2O5, Y2O3, Sb2O3, etc., the crystal structure and sintering process are optimized, the grains are refined, the dielectric constant is increased and the dielectric loss is reduced, and the mechanical properties and thermal stability are enhanced.
This invention achieves dielectric materials with high dielectric constant, low dielectric loss, high withstand voltage, and high temperature stability, suitable for high-voltage ceramic capacitors, thus improving capacitor efficiency and reliability.