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Pressure proof strontium titanate base energy storage medium ceramic and its preparation method

A technology of energy storage medium and titanic acid, which is applied in the field of pressure-resistant strontium titanate-based energy storage medium ceramics and preparation, can solve the problems that have not yet been seen, and achieve the effects of high dielectric constant, high breakdown strength and low loss

Active Publication Date: 2007-08-08
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, no CaTiSiO 5 Doping improves SrTiO 3 Report on Dielectric and Voltage Resistance Properties of Base Ceramics

Method used

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  • Pressure proof strontium titanate base energy storage medium ceramic and its preparation method
  • Pressure proof strontium titanate base energy storage medium ceramic and its preparation method
  • Pressure proof strontium titanate base energy storage medium ceramic and its preparation method

Examples

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Embodiment Construction

[0016] The formulas of Examples 1-5 are listed in Table 1, and the properties of each example sample are listed in Table 2.

[0017] Table 1

[0018] Table 2

[0019] Test conditions: The apparent density is measured by the Archimedes drainage method; the dielectric constant and dielectric loss are measured at a frequency of 1MHz; the dielectric strength is measured with insulating transformer oil as the medium. The test temperature is room temperature.

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Abstract

The present invention relates to a high pressure-resistant energy-storing medium ceramic and its preparation method. The chemical composition of said ceramic is Sr(Ti0.95 Zr0.05) O3+Xmol% CaTiSiO5, in which X is greater than O and less than or equal to 20. Its preparation method includes the following steps: adopting solid-phase method, using SrCO3 and TiO2 to synthesize SrTiO3; using SrCO3 and ZrO2 to synthesize SrZrO3; using CaCO3 SiO2 and TiO2 to synthesize CaTiSiO5 powder body; mixing materials according to the above-mentioned chemical composition formula; ball-grinding according to the ratio of material; ball: water=1:1:1-1.2, drying; adding polyvinyl alcohol solution as binding agent, granulating, sieving with 40 meshes, press-forming, slowly heating to 600-650deg.C to remove binding agent, sintering at 1260-1420deg.C, heat-insulating for 2-6hr, so as to obtain the invented product.

Description

technical field [0001] The invention relates to a pressure-resistant strontium titanate-based energy storage medium ceramic and a preparation method thereof, in particular to a CaTiSiO 5 Doped modified SrTiO 3 Base energy storage medium ceramic and preparation method thereof. Background technique [0002] Pulse forming technology is an important topic in the research of high-voltage pulse power. Pulse forming line is one of the key factors of accelerator performance. Commonly used pulse compression forming structures include coaxial structure and flat plate structure. In order to adapt to the development of solid-state pulse forming lines, the energy storage medium is developing in the direction of low resistance, high flow and miniaturization. Energy storage dielectric ceramics used in solid-state pulse forming lines should meet the following requirements for dielectric and withstand voltage characteristics: (1) high relative permittivity ∈r; (2) low dielectric loss tgδ, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/47C04B35/622
Inventor 刘韩星曹明贺沈宗洋
Owner WUHAN UNIV OF TECH
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