Preparation method of BaTiO3 ceramic sheet
A technology for ceramic sheets and grinding sheets is applied in the field of preparation of electronic components, which can solve the problems of high power attenuation, poor temperature coefficient and pressure stability of devices, and achieve the effects of high heating efficiency, low temperature coefficient and improved convenience.
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Embodiment 1
[0034] (1) BaCO 3 , CaCO 3 、TiO 2 The first wet ball milling with PbO is evenly mixed, and the slurry is obtained by plate pressure filtration. The slurry is placed in an oven at 110-120°C for the first drying to form the first drying material, and the first drying material is in an oven at 1000-1100°C Medium heat preservation for 2 to 3 hours and pre-sintering to form a pre-synthesized material;
[0035] (2) Add graphene, Y 2 o 3 , Nb 2 o 5 and sintering agent, carry out the second wet ball milling, and after stirring and plate pressure filtration, carry out the second drying in an oven at 110-120°C to form the secondary drying material, and add equivalent The granulated material is obtained by granulating 0.1mol / L polyvinyl alcohol aqueous solution binder with 2 to 7% of the mass of the secondary drying material. The granulated material is selected from the blank screened by a 60-mesh screen, and then formed, Fired, lapped, and coated with electrodes.
[0036] Among ...
Embodiment 2
[0051] (1) BaCO 3 , CaCO 3 、TiO 2 The first wet ball milling with PbO is evenly mixed, and the slurry is obtained by plate pressure filtration. The slurry is placed in an oven at 110-120°C for the first drying to form the first drying material, and the first drying material is in an oven at 1000-1100°C Medium heat preservation for 2 to 3 hours and pre-sintering to form a pre-synthesized material;
[0052] (2) Add graphene, Y 2 o 3 , Nb 2 o 5 and sintering agent, carry out the second wet ball milling, and after stirring and plate pressure filtration, carry out the second drying in an oven at 110-120°C to form the secondary drying material, and add equivalent The granulated material is obtained by granulating 2-7% of the 0.5mol / L polyvinyl alcohol aqueous solution binder of the mass of the secondary drying material. The granulated material is selected from the blank screened by a 60-mesh screen, and then formed, Fired, lapped, and coated with electrodes.
[0053] Among t...
Embodiment 3
[0068] (1) BaCO 3 , CaCO 3 、TiO 2 The first wet ball milling with PbO is evenly mixed, and the slurry is obtained by plate pressure filtration. The slurry is placed in an oven at 110-120°C for the first drying to form the first drying material, and the first drying material is in an oven at 1000-1100°C Medium heat preservation for 2 to 3 hours and pre-sintering to form a pre-synthesized material;
[0069] (2) Add graphene, Y 2 o 3 , Nb 2 o 5 and sintering agent, carry out the second wet ball milling, and after stirring and plate pressure filtration, carry out the second drying in an oven at 110-120°C to form the secondary drying material, and add equivalent The granulated material is obtained by granulating 2-7% of the 1mol / L polyvinyl alcohol aqueous solution binder of the mass of the secondary drying material. The granulated material is selected from the blank screened by a 60-mesh screen, and then formed and fired. into, through the grinding process, and then coated ...
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