Barium niobate system microwave dielectric ceramic material and preparation method and application thereof
A technology of microwave dielectric ceramics and barium niobate, applied in waveguide devices, resonators, circuits, etc., can solve the problems of high sintering temperature and difficulty in industrial production
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Embodiment 1
[0035] The barium niobate system microwave dielectric ceramic material described in this embodiment, based on the total amount of raw materials for its preparation, includes the following components in mass content:
[0036]
[0037]
[0038] Specifically, the low-melting glass powder includes the following components by weight:
[0039]
[0040] The preparation method of the barium niobate system microwave dielectric ceramic material described in this embodiment comprises the following steps:
[0041] (1) According to the selected mass content ratio, weigh the corresponding weight of BaCO 3 , Nb 2 o 5 , ZnO, CoO, NiO, add water (material: water = 1:0.4) and ammonium acrylate dispersant (accounting for 0.6wt% of the powder amount) and mix well, use a ball mill to pre-mix for 3h, and after ball milling, Use a horizontal sand mill (the grinding medium adopts 1.5mm zirconium balls) for further dispersion to obtain a uniformly dispersed slurry;
[0042] (2) Microwave-dr...
Embodiment 2
[0049] The barium niobate system microwave dielectric ceramic material described in this embodiment, based on the total amount of raw materials for its preparation, includes the following components in mass content:
[0050]
[0051] Specifically, the low-melting glass powder includes the following components by weight:
[0052]
[0053]
[0054] The preparation method of the barium niobate system microwave dielectric ceramic material described in this embodiment comprises the following steps:
[0055] (1) According to the selected mass content ratio, weigh the corresponding weight of BaCO 3 , Nb 2 o 5 , ZnO, CoO, NiO, add water (material: water = 1:0.6) and ammonium acrylate dispersant (accounting for 0.4wt% of the powder amount) and mix well, use a ball mill to pre-mix for 3h, and after ball milling, Use a horizontal sand mill (the grinding medium adopts 1.5mm zirconium balls) for further dispersion to obtain a uniformly dispersed slurry;
[0056] (2) Use a micr...
Embodiment 3
[0063] The barium niobate system microwave dielectric ceramic material described in this embodiment, based on the total amount of raw materials for its preparation, includes the following components in mass content:
[0064]
[0065] Specifically, the low-melting glass powder includes the following components by weight:
[0066]
[0067] The preparation method of the barium niobate system microwave dielectric ceramic material described in this embodiment comprises the following steps:
[0068] (1) According to the selected mass content ratio, weigh the corresponding weight of BaCO 3 , Nb 2 o 5 , ZnO, CoO, NiO, add water (material: water = 1:0.5) and ammonium acrylate dispersant (accounting for 0.5wt% of the amount of the crystal phase mixture) and mix evenly, use a ball mill to pre-mix for 3h, and in the ball mill Finally, use a horizontal sand mill (the grinding medium adopts 1.5mm zirconium balls) to further disperse to obtain a uniformly dispersed slurry;
[0069]...
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