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Two-phase composite microwave dielectric ceramic material, and preparation method and application thereof
The invention belongs to the technical field of microwave dielectric ceramic materials, and particularly relates to a two-phase composite microwave dielectric ceramic material. The two-phase compositemicrowave dielectric ceramic material is prepared from Ba(Zn<1/3>Nb<2/3>)O<3>, MgTiO<3> and a selectively-added oxide additive through solid-phase synthesis; the obtained microwave dielectric ceramicmaterial can be sintered into ceramic at a sintering temperature of 1320 to 1370 DEG C; the dielectric constant of a test wafer reaches 30-35, the value of f*Q at 25 DEG C is larger than 60000, a frequency temperature coefficient calculated by testing resonant frequencies f at -40 DEG C, 25 DEG C and 110 DEG C is low and ranges from -5 ppm/DEG C to 5 ppm/DEG C, and the performance of the test wafer meets the requirements on microwave dielectric ceramic devices; meanwhile, the material also has relatively good dielectric properties in a millimeter wave frequency band; and the material can be used for producing ceramic devices such as filters and resonators.
本发明属于微波介质陶瓷材料技术领域，具体涉及一种两相复合微波介质陶瓷材料。本发明所述两相复合微波介质陶瓷材料，以固相合成的Ba(ZnNb)O、MgTiO为原料，并选择性添加氧化物添加剂进行制备，得到的微波介质陶瓷材料在1320‑1370℃的烧结温度下即可烧结成瓷，测试圆片的介电常数达到30‑35，25℃的f*Q＞60000，通过测试‑40℃、25℃、110℃的共振频率f计算出的频率温度系数较低，为‑5～5ppm/℃，其性能符合微波介质陶瓷器件的要求；同时，材料在毫米波频段下也具有较好的介电性能；可以用于生产滤波器和谐振器等陶瓷器件。
Two-phase composite microwave dielectric ceramic material, and preparation method and application thereof
The invention belongs to the technical field of microwave dielectric ceramic materials, and particularly relates to a two-phase composite microwave dielectric ceramic material. The two-phase compositemicrowave dielectric ceramic material is prepared from Ba(Zn<1/3>Nb<2/3>)O<3>, MgTiO<3> and a selectively-added oxide additive through solid-phase synthesis; the obtained microwave dielectric ceramicmaterial can be sintered into ceramic at a sintering temperature of 1320 to 1370 DEG C; the dielectric constant of a test wafer reaches 30-35, the value of f*Q at 25 DEG C is larger than 60000, a frequency temperature coefficient calculated by testing resonant frequencies f at -40 DEG C, 25 DEG C and 110 DEG C is low and ranges from -5 ppm/DEG C to 5 ppm/DEG C, and the performance of the test wafer meets the requirements on microwave dielectric ceramic devices; meanwhile, the material also has relatively good dielectric properties in a millimeter wave frequency band; and the material can be used for producing ceramic devices such as filters and resonators.
本发明属于微波介质陶瓷材料技术领域，具体涉及一种两相复合微波介质陶瓷材料。本发明所述两相复合微波介质陶瓷材料，以固相合成的Ba(ZnNb)O、MgTiO为原料，并选择性添加氧化物添加剂进行制备，得到的微波介质陶瓷材料在1320‑1370℃的烧结温度下即可烧结成瓷，测试圆片的介电常数达到30‑35，25℃的f*Q＞60000，通过测试‑40℃、25℃、110℃的共振频率f计算出的频率温度系数较低，为‑5～5ppm/℃，其性能符合微波介质陶瓷器件的要求；同时，材料在毫米波频段下也具有较好的介电性能；可以用于生产滤波器和谐振器等陶瓷器件。
Two-phase composite microwave dielectric ceramic material, and preparation method and application thereof
一种两相复合微波介质陶瓷材料及其制备方法与应用
YING HONG (author) / YANG YUEXIA (author) / YANG BIN (author) / LIU GUANGMING (author) / FU QINGBO (author) / SONG XIBIN (author)
2020-05-19
Patent
Electronic Resource
Chinese
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