Sodium bismuth titanate-based dielectric energy storage ceramic and preparation method thereof
A technology based on sodium bismuth titanate and sodium bismuth titanate, which is applied in the direction of fixed capacitor dielectric and fixed capacitor parts, etc., to achieve the effects of large energy storage density, reduced volatilization, and high energy storage density
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0026] Material composition of the present invention is by chemical formula (Bi 0.5 Na 0.5 ) 1-x Ca x TiO 3 -yK 1.94 Zn 1.06 Ta5. 19 o 15 (0.1≤x≤0.2, 0≤y≤0.2) carry out proportioning, can make the material of the present invention by solid state reaction, and wherein raw material is selected from Na 2 CO 3 、 Bi 2 o 3 , CaCO 3 、K 2 CO 3 , ZnO and Ta 2 o 5 ceramic powder.
[0027] The preparation method of described ceramic material comprises the following steps:
[0028] 1. (Bi 0.5 Na 0.5 ) 1-x Ca x TiO3 Powder preparation
[0029] Selected from Na with a purity greater than 98% 2 CO 3 、 Bi 2 o 3 , CaCO 3 and TiO 2 Ceramic powder, according to the general chemical formula (Bi 0.5 Na 0.5 ) 1-x Ca x TiO 3 , 0.1≤x≤0.2 ingredients;
[0030] The powder prepared in step (1) is transferred into a nylon ball mill tank, and zirconium balls and absolute ethanol are used as ball milling media, and the mass ratio of mixture: grinding ball: absolute ethanol ...
Embodiment 1
[0040] Embodiment one
[0041] 1. (Bi 0.5 Na 0.5 ) 1-x Ca x TiO 3 Powder preparation
[0042] (1), weigh 5.6905g of Na 2 CO 3 , 25.3904g Bi 2 o 3 , 3.4817g of CaCO 3 , 19.8456g of TiO 2 , to get a mixture;
[0043] (2) Put the prepared powder into a nylon ball mill tank, use zirconium balls and absolute ethanol as the ball milling medium, and mill for 4 hours according to the mass ratio of mixture: grinding ball: absolute ethanol: 1:5:2 Obtain uniformly mixed ceramic powder, then dry it at 70°C, pass through a 100-mesh sieve, and then calcinate at 900°C for 4 hours to obtain a pre-fired material;
[0044] (3) After the obtained calcined material is crushed, zirconium balls are used as the ball milling medium, and the mass ratio of calcined material: zirconium balls: absolute ethanol is ball milled for 6 hours to obtain uniformly mixed ceramic powder body, then dried at 70°C, and sieved through a 120-mesh sieve to obtain (Bi 0.5 Na 0.5 ) 1-x Ca x TiO 3 Ceramic...
Embodiment 2
[0053] Embodiment two
[0054] 1. (Bi 0.5 Na 0.5 ) 1-x Ca x TiO 3 Powder preparation
[0055] (1), weigh 5.6456g of Na 2 CO 3 , Bi of 25.1901g 2 o 3 , 3.7445g of CaCO 3 , 19.9208g of TiO 2 , to get a mixture;
[0056] (2) Put the prepared powder into a nylon ball mill tank, use zirconium balls and absolute ethanol as the ball milling medium, and mill for 4 hours according to the mass ratio of mixture: grinding ball: absolute ethanol: 1:5:2 Obtain uniformly mixed ceramic powder, then dry it at 70°C, pass through a 100-mesh sieve, and then calcinate at 900°C for 4 hours to obtain a pre-fired material;
[0057] (3) After the obtained calcined material is crushed, zirconium balls are used as the ball milling medium, and the mass ratio of calcined material: zirconium balls: absolute ethanol is ball milled for 6 hours to obtain uniformly mixed ceramic powder body, then dried at 70°C, and sieved through a 120-mesh sieve to obtain (Bi 0.5 Na 0.5 ) 1-x Ca x TiO 3 Cera...
PUM
| Property | Measurement | Unit |
|---|---|---|
| strength | aaaaa | aaaaa |
| relative permittivity | aaaaa | aaaaa |
| dielectric loss | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More