Application and preparation method for molybdenum-based low temperature sintering microwave dielectric ceramic material
A technology of microwave dielectric ceramics and low-temperature sintered ceramics, which is applied in the application and preparation of molybdenum-based low-temperature sintered microwave dielectric ceramic materials, can solve the problems of low cost pressure and inability to take into account the localization of components, etc., and achieve single phase, The effect of adjustable dielectric constant and high quality factor
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Embodiment 1
[0032] A method for preparing a molybdenum-based low-temperature sintered microwave dielectric ceramic material, comprising the following steps:
[0033] 1) Analyze the purity of chemical raw materials Bi 2 o 3 、La 2 o 3 and MoO 3 According to the general formula 0.999Bi 2 o 3 -0.001La 2 o 3 -MoO 3After mixing the ingredients, fully ball mill them for 4.5 hours, then dry them at 200°C, pass through a 150-mesh sieve and briquette them, and then keep them warm at 550°C for 5 hours to obtain the sample briquettes;
[0034] 2) After pulverizing the sample sintered block, after secondary ball milling for 5 hours, drying at 200°C, granulating, and then sieving through double-layer sieves of 80 mesh and 120 mesh, the desired secondary granules can be obtained;
[0035] 3) Press the secondary particles into shape (flaky or columnar) as required, and then sinter them in air at 800-900°C for 2 hours to form porcelain to obtain a molybdenum-based low-temperature sintered microwa...
Embodiment 2
[0039] A method for preparing a molybdenum-based low-temperature sintered microwave dielectric ceramic material, comprising the following steps:
[0040] 1) Analyze the purity of chemical raw materials Bi 2 o 3 , La 2 o 3 and MoO 3 According to the general formula 0.9Bi 2 o 3 -0.1La 2 o 3 -MoO 3 After mixing the ingredients, fully ball mill them for 4.5 hours, then dry them at 200°C, pass through a 150-mesh sieve and briquette them, and then keep them warm at 550°C for 5 hours to obtain the sample briquettes;
[0041] 2) After pulverizing the sample sintered block, after secondary ball milling for 5 hours, drying at 200°C, granulating, and then sieving through double-layer sieves of 80 mesh and 120 mesh, the desired secondary granules can be obtained;
[0042] 3) Press the secondary particles into shape (flaky or columnar) as required, and then sinter them in air at 850-950°C for 2 hours to form ceramics to obtain molybdenum-based low-temperature sintered microwave di...
Embodiment 3
[0046] A method for preparing a molybdenum-based low-temperature sintered microwave dielectric ceramic material, comprising the following steps:
[0047] 1) Analyze the purity of chemical raw materials Bi 2 o 3 , La 2 o 3 and MoO 3 According to the general formula 0.8Bi 2 o 3 -0.2La 2 o 3 -MoO 3 After mixing the ingredients, fully ball mill them for 4.5 hours, then dry them at 200°C, pass through a 150-mesh sieve and briquette them, and then keep them warm at 550°C for 5 hours to obtain the sample briquettes;
[0048] 2) After pulverizing the sample sintered block, after secondary ball milling for 5 hours, drying at 200°C, granulating, and then sieving through double-layer sieves of 80 mesh and 120 mesh, the desired secondary granules can be obtained;
[0049] 3) Press the secondary particles into shape (flaky or columnar) as required, and then sinter them in air at 900-1000°C for 2 hours to form porcelain to obtain molybdenum-based low-temperature sintered microwave ...
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