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Wave-transmitting high-dielectric ceramic material, preparation method and application thereof
The invention discloses a wave-transmitting high-dielectric ceramic material, a preparation method and application thereof, wherein the wave-transmitting high-dielectric ceramic material is prepared from the following raw materials in percentage by weight: 80-95% of silicon nitride and 5-20% of a sintering aid, wherein the addition amount of a high-dielectric component is 5-30% of the total weightof the silicon nitride and the sintering aid. The embodiment of the invention discloses a wave-transmitting igh-dielectric ceramic material. The wave-transmitting high-dielectric ceramic material hasgood mechanical properties (the bending strength is larger than or equal to 150 MPa) and excellent dielectric properties, and can meet the use requirements of a multifunctional radome on the wave-transmitting high-dielectric ceramic material, wherein the dielectric constant epsilon ranges from 7.5 to 10.0, and the dielectric loss is smaller than 0.02 (the X/Ku/Ka waveband is tested through a short-circuit waveguide method).
本发明公开了一种透波高介电陶瓷材料及其制备方法与应用，所述透波高介电陶瓷材料由以下重量分数的原料制成：氮化硅80‑95％，烧结助剂5‑20％，高介电组分的添加量为氮化硅与烧结助剂总重的5‑30％。本发明实施例示例的透波高介电陶瓷材料，不仅具有良好的力学性能(弯曲强度≥150MPa)，还具有优异介电性能，介电常数ε介于7.5‑10.0，介电损耗＜0.02(短路波导法测试的X/Ku/Ka波段)，能够满足多功能天线罩对透波高介电陶瓷材料的使用需求。
Wave-transmitting high-dielectric ceramic material, preparation method and application thereof
The invention discloses a wave-transmitting high-dielectric ceramic material, a preparation method and application thereof, wherein the wave-transmitting high-dielectric ceramic material is prepared from the following raw materials in percentage by weight: 80-95% of silicon nitride and 5-20% of a sintering aid, wherein the addition amount of a high-dielectric component is 5-30% of the total weightof the silicon nitride and the sintering aid. The embodiment of the invention discloses a wave-transmitting igh-dielectric ceramic material. The wave-transmitting high-dielectric ceramic material hasgood mechanical properties (the bending strength is larger than or equal to 150 MPa) and excellent dielectric properties, and can meet the use requirements of a multifunctional radome on the wave-transmitting high-dielectric ceramic material, wherein the dielectric constant epsilon ranges from 7.5 to 10.0, and the dielectric loss is smaller than 0.02 (the X/Ku/Ka waveband is tested through a short-circuit waveguide method).
本发明公开了一种透波高介电陶瓷材料及其制备方法与应用，所述透波高介电陶瓷材料由以下重量分数的原料制成：氮化硅80‑95％，烧结助剂5‑20％，高介电组分的添加量为氮化硅与烧结助剂总重的5‑30％。本发明实施例示例的透波高介电陶瓷材料，不仅具有良好的力学性能(弯曲强度≥150MPa)，还具有优异介电性能，介电常数ε介于7.5‑10.0，介电损耗＜0.02(短路波导法测试的X/Ku/Ka波段)，能够满足多功能天线罩对透波高介电陶瓷材料的使用需求。
Wave-transmitting high-dielectric ceramic material, preparation method and application thereof
一种透波高介电陶瓷材料及其制备方法与应用
ZHANG PINGPING (author) / WANG HONGSHENG (author) / WEI QIHONG (author) / ZHU BAOXIN (author) / GE YING (author)
2020-06-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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