Super-stable temperature type electronic ceramic material

An electronic ceramic and stable technology, applied in the field of dielectric ceramics, can solve the problems of being unable to be used in stricter occasions, low electrical performance of barium titanate ceramics, and unsuitable for practical application, etc. The effect of loss

Inactive Publication Date: 2015-08-19
蔡惠文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the electrical properties of barium titanate ceramics are relatively low, which is not suitable for practical applications.
In addition, ceramic dielectric materials in the prior art have disadvantages such as poor temperature stability and cannot be used in demanding occasions.

Method used

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  • Super-stable temperature type electronic ceramic material

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Effect test

Embodiment 1

[0016] A temperature ultra-stable electronic ceramic material, mainly composed of the following raw materials in parts by weight: 25 parts of barium titanate, 8 parts of aluminum oxide, 15 parts of zirconium dioxide, 10 parts of manganese oxide, 3 parts of nickel oxide, and 2 parts of zinc oxide , 0.01 parts of gallium oxide, 10 parts of nano silicon dioxide, 1 part of magnesium oxide, 2 parts of nano boron nitride, and 0.1 part of thulium oxide.

[0017] A method for preparing a temperature ultra-stable electronic ceramic material, including the steps of mixing materials, ball milling, molding, drying, calcination to remove iron, spray granulation, etc., put the pressed ceramic material under nitrogen protection, and the initial temperature is 100 Heating in a heating furnace at ℃ for 0.5h, nitrogen flow rate: 5ml / min; then raising the temperature to 950°C for 1.5h calcination, and then rapidly raising the temperature to 1750°C for 0.5 hours under the protection of hydrogen, a...

Embodiment 2

[0019] A temperature ultra-stable electronic ceramic material, mainly composed of the following raw materials in parts by weight: 38 parts of barium titanate, 10 parts of aluminum oxide, 25 parts of zirconium dioxide, 20 parts of manganese oxide, 9 parts of nickel oxide, and 8 parts of zinc oxide , 0.1 parts of gallium oxide, 18 parts of nano silicon dioxide, 5 parts of magnesium oxide, 8 parts of nano boron nitride, and 1.5 parts of thulium oxide.

[0020] A method for preparing a temperature ultra-stable electronic ceramic material, including the steps of mixing materials, ball milling, molding, drying, calcination to remove iron, and spray granulation. The pressed ceramic material is placed under nitrogen protection, and the initial temperature is 200 ° C. Heating in a heating furnace for 1.0h, nitrogen flow rate: 40ml / min; after that, the temperature was raised to 1000°C for 2.5h, and then the temperature was rapidly raised to 1900°C under the protection of hydrogen for 1.0...

Embodiment 3

[0022] A temperature ultra-stable electronic ceramic material, mainly composed of the following raw materials in parts by weight: 28 parts of barium titanate, 8 parts of aluminum oxide, 18 parts of zirconium dioxide, 12 parts of manganese oxide, 5 parts of nickel oxide, and 3.5 parts of zinc oxide , 0.04 parts of gallium oxide, 12 parts of nano silicon dioxide, 2 parts of magnesium oxide, 3 parts of nano boron nitride, and 0.5 parts of thulium oxide.

[0023] A method for preparing a temperature ultra-stable electronic ceramic material, comprising the steps of mixing materials, ball milling, molding, drying, calcining to remove iron, spraying granulation, etc., characterized in that: the pressed ceramic material is placed under nitrogen protection, Heating in a heating furnace with an initial temperature of 250°C for 0.6h, nitrogen flow rate: 10ml / min; then raising the temperature to 990°C for 2.2h calcination, and then rapidly raising the temperature to 18550°C under the prote...

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Abstract

The invention discloses a super-stable temperature type electronic ceramic material and a preparation method thereof and belongs to the technical field of dielectric ceramics. The super-stable temperature type electronic ceramic material mainly comprises the following raw materials in parts by weight: 25-38 parts of barium titanate, 8-10 parts of aluminum oxide, 15-25 parts of zirconium dioxide, 10-20 parts of manganese oxide, 3-9 parts of nickel oxide, 2-8 parts of zinc oxide, 0.01-0.1 part of gallium oxide, 10-18 parts of nano silicon dioxide, 1-5 parts of magnesium oxide, 2-8 parts of nano boron nitride and 0.1-1.5 parts of thulium oxide. According to the ceramic material disclosed by the invention, the rare earth thulium oxide is used for replacing frequently-used cerium oxide and niobium pentaoxide components, and the ceramic material has obvious effects of further promoting fine crystallization of a ceramic body, improving the pressure resistance and reducing the losses. The ceramic material disclosed by the invention is simple in formula and low in price.

Description

technical field [0001] The invention relates to the technical field of dielectric ceramics, in particular to a temperature ultra-stable electronic ceramic material and a preparation method thereof. Background technique [0002] Capacitors are electronic and electrical components with a wide range of uses. They can smooth signal fluctuations in the circuit and play a role in decoupling. They can also store charges to protect the rest of the circuit from damage, and even Change the frequency of the electrical signal. In recent years, with the rapid development of the electronic information industry and the power industry, the demand for ceramic capacitors is also rising. In the field of ceramic capacitors, high capacity, low loss, miniaturization, high reliability, and high temperature stability have become the development trend. [0003] Perovskite lead-free piezoelectric materials have been widely used in modern science and technology due to their simultaneous dielectric, ...

Claims

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Application Information

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IPC IPC(8): C04B35/49C04B35/64
Inventor 蔡惠文
Owner 蔡惠文
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