Preparation method of ceramic capacitor medium
A technology of ceramic capacitors and dielectrics, applied in the field of capacitors, can solve the problems of high compressive strength and inability to meet the needs of use, and achieve the effects of high compressive strength, simple and clear preparation method, and stable performance
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[0019] A kind of preparation method of ceramic capacitor medium of the present invention, specifically implement according to the following steps:
[0020] Step 1. Calcining BaTiO 3 After cooling to room temperature for later use, the calcination condition is to heat to 1300°C-1400°C at a heating rate of 10°C / min to obtain calcined BaTiO 3 ;
[0021] Step 2, the Nb 2 o 5 , NiO mixed in a weight ratio of 400:1-450:2, sieved, calcined, ball milled, and dried to obtain the first precursor mixture, and Nb 2 o 5 and CoCO 3 By weight percentage 400:2.5-400:3 mixed, sieved, calcined, ball milled, dried to obtain the second precursor mixture, the sieved sieve holes are 250 holes / cm 2 , the calcination temperature is 850°C;
[0022] Step 3, by weight percentage, component Bi 2 o 3 37-40%, Pb 3 o 4 12-26%, ZnO20-27%, H 3 BO 3 6-9% is fully mixed to obtain a mixture, the mass percentage of each component of the above mixture is 100%, the mixture is melted and quenched, groun...
Embodiment 1
[0026] This embodiment provides a method for preparing a ceramic capacitor dielectric, which is specifically implemented according to the following steps:
[0027] Step 1. Calcining BaTiO 3 After cooling to room temperature for later use, the calcination condition is to heat up to 1400°C at a heating rate of 10°C / min to obtain calcined BaTiO 3 ;
[0028] Step 2, the Nb 2 o 5 , NiO mixed in a weight ratio of 450:2, sieved, calcined, ball milled, and dried to obtain the first precursor mixture, and Nb 2 o 5 and CoCO 3 By weight percentage 400:3 mixing, sieving, calcining, ball milling, and drying to obtain the second precursor mixture, the sieve holes of the sieve are all 250 holes / cm 2 , the calcination temperature is 850°C;
[0029] Step 3, by weight percentage, component Bi 2 o 3 38%, Pb 3 o 4 26%, ZnO27%, H 3 BO 3 9% is fully mixed to obtain a mixture, the mixture is melted and quenched, ground and sieved, and the sieve mesh is 6500 holes / cm 2 , to obtain glass...
Embodiment 2
[0033] This embodiment provides a method for preparing a ceramic capacitor dielectric, which is specifically implemented according to the following steps:
[0034] Step 1. Calcining BaTiO 3 After cooling to room temperature for later use, the calcination condition is to heat to 1300°C at a heating rate of 10°C / min to obtain calcined BaTiO 3 ;
[0035] Step 2, the Nb 2 o 5 , NiO mixed in a weight ratio of 400:1, sieved, calcined, ball milled, and dried to obtain the first precursor mixture, and Nb 2 o 5 and CoCO 3 Mixing by weight percentage 400:2.5, sieving, calcining, ball milling, drying to obtain the second precursor mixture, the sieve holes are all 250 holes / cm 2 , the calcination temperature is 850°C;
[0036] Step 3, by weight percentage, component Bi 2 o 3 40%, Pb 3 o 4 26%, ZnO27%, H 3 BO 3 7% is fully mixed to obtain a mixture, the mixture is melted and quenched, ground and sieved, and the sieve mesh is 6500 holes / cm 2 , to obtain glass powder;
[0037]...
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