Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Microwave dielectric ceramic material with adjustable dielectric constant and preparation method thereof
The invention discloses a microwave dielectric ceramic material with an adjustable dielectric constant and a preparation method thereof, and belongs to the technical field of microwave dielectric materials. The composition expression of the microwave dielectric ceramic material is x Mg2SiO4-(1-x) Mg2TiO4-0. 09 CaTiO3-0.005 MO, x is more than or equal to 0.15 and less than or equal to 0.7, and MO is an auxiliary agent. The material is designed to be a three-phase composite material, and is composed of Mg2SiO4 and Mg2TiO4 with different dielectric constants but negative and similar frequency temperature coefficients, and CaTiO3 with a positive frequency temperature coefficient. According to the microwave dielectric ceramic material disclosed by the invention, the purpose that the dielectric constant is randomly adjustable in the range of 10.0-19.9 can be achieved through simple x value change, the Q * f value is 47704-68149 GHz, and the frequency temperature coefficient tau f is less than or equal to +/-10 ppm/DEG C.
本发明公开了一种介电常数可调的微波介质陶瓷材料及其制备方法，属于微波介质材料技术领域。该微波介质陶瓷材料的组成表达为：x Mg2SiO4‑(1‑x)Mg2TiO4‑0.09CaTiO3‑0.005MO，其中：0.15≤x≤0.7，MO为助剂。该材料设计为三相复合，由两种介电常数不同但频率温度系数偏负且相近的Mg2SiO4、Mg2TiO4和一种频率温度系数偏正的CaTiO3共同组成。本发明微波介质陶瓷材料可通过简单的x值变化，实现介电常数在10.0～19.9范围内任意可调的目的，Q×f值为47704～68149GHz，频率温度系数τf≤±10ppm/℃。
Microwave dielectric ceramic material with adjustable dielectric constant and preparation method thereof
The invention discloses a microwave dielectric ceramic material with an adjustable dielectric constant and a preparation method thereof, and belongs to the technical field of microwave dielectric materials. The composition expression of the microwave dielectric ceramic material is x Mg2SiO4-(1-x) Mg2TiO4-0. 09 CaTiO3-0.005 MO, x is more than or equal to 0.15 and less than or equal to 0.7, and MO is an auxiliary agent. The material is designed to be a three-phase composite material, and is composed of Mg2SiO4 and Mg2TiO4 with different dielectric constants but negative and similar frequency temperature coefficients, and CaTiO3 with a positive frequency temperature coefficient. According to the microwave dielectric ceramic material disclosed by the invention, the purpose that the dielectric constant is randomly adjustable in the range of 10.0-19.9 can be achieved through simple x value change, the Q * f value is 47704-68149 GHz, and the frequency temperature coefficient tau f is less than or equal to +/-10 ppm/DEG C.
本发明公开了一种介电常数可调的微波介质陶瓷材料及其制备方法，属于微波介质材料技术领域。该微波介质陶瓷材料的组成表达为：x Mg2SiO4‑(1‑x)Mg2TiO4‑0.09CaTiO3‑0.005MO，其中：0.15≤x≤0.7，MO为助剂。该材料设计为三相复合，由两种介电常数不同但频率温度系数偏负且相近的Mg2SiO4、Mg2TiO4和一种频率温度系数偏正的CaTiO3共同组成。本发明微波介质陶瓷材料可通过简单的x值变化，实现介电常数在10.0～19.9范围内任意可调的目的，Q×f值为47704～68149GHz，频率温度系数τf≤±10ppm/℃。
Microwave dielectric ceramic material with adjustable dielectric constant and preparation method thereof
一种介电常数可调的微波介质陶瓷材料及其制备方法
WU WEIJIE (Autor:in) / LI YA (Autor:in) / DU WEN (Autor:in) / TAO FENGYE (Autor:in)
01.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2020
Low-dielectric-constant microwave dielectric ceramic material and preparation method thereof
| Europäisches Patentamt | 2015
Medium dielectric constant microwave dielectric ceramic material and preparation method thereof
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2021
Microwave dielectric ceramic material with high dielectric constant and preparation method thereof
| Europäisches Patentamt | 2023