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Formula, preparation method and application of zirconia ceramic metalized slurry for brazing

A zirconia ceramic and metallization technology, which is applied in the field of pretreatment materials, can solve the problems of device discomfort and low conductivity of the metallization layer, and achieve the effects of good conductivity, excellent metallization effect, and high adhesion

Active Publication Date: 2015-03-04
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems that the device obtained by using the existing brazing method of zirconia ceramics and metal materials is not suitable for working in harsh environments, and the conductivity of the metallization layer is not high, the invention provides a metallization slurry for zirconia ceramics for brazing Formulation, preparation method and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. The formula composition of zirconia ceramic metallization slurry for brazing is as follows:

[0027] Powder: Mn powder: 0.2%, Al powder: 0.5%, Mg powder: 0.1%, CaO powder: 0.4%, Al 2 o 3 Powder: 1%, MnO Powder: 1%, SiO 2 Powder: 1%;

[0028] Solvents: ethanol: 2.8%, acetone: 2.4%, octene: 1.3%, methyl ethyl ketone: 1.6%, isopropanol: 1.2%, terpineol: 2.0%;

[0029] Additives: Eucalyptus oil: 4.5%, Eucalyptol: 2.4%, Castor hardened oil: 2.8%, Castor oil fatty acid: 1.5%, Blowing oil: 2.4%, Diethylene glycol butyl ether acetate: 2.1% , rosin: 1.6%, methylcellulose: 1.2%, polyvinyl alcohol: 0.9%, methacrylate: 1.7%;

[0030] The percentages adopted in the content of all the above-mentioned components are the percentage by weight of the corresponding components accounting for the total amount of the slurry formula;

[0031] The balance is ultrafine platinum powder with an average particle size of 0.3 μm.

[0032] 2. Mix the aforementioned zirconia ceramic metalliza...

Embodiment 2

[0037] 1. The formula composition of zirconia ceramic metallization slurry for brazing is as follows:

[0038] Powder: Al powder: 0.9%, Mg powder: 0.4%, CaO powder: 1.2%, Al 2 o 3 Powder: 2.7%, MgO powder: 0.7%, MnO powder: 1.8%, ZrO 2 Powder: 0.9%, SiO 2 Powder: 1.5%;

[0039] Solvents: ethanol: 3.2%, acetone: 2.1%, octene: 1.4%, methyl ethyl ketone: 1.8%, isopropanol: 1.2%, terpineol: 2.0%;

[0040] Additives: Eucalyptus oil: 3.5%, Eucalyptol: 1.6%, Castor hardened oil: 2.4%, Castor oil fatty acid: 1.8%, Dimethyl adipate: 1.5%, Diethylene glycol butyl ether acetate : 2.1%, rosin: 0.8%, diethyl phthalate: 1.4%, polyvinyl alcohol: 2.0%;

[0041] The percentages adopted in the content of all the above-mentioned components are the percentage by weight of the corresponding components accounting for the total amount of the slurry formula;

[0042] The balance is ultrafine platinum powder with an average particle size of 2.0 μm.

[0043] 2. Mix the aforementioned zirconia ce...

Embodiment 3

[0048] 1. The formula composition of zirconia ceramic metallization slurry for brazing is as follows:

[0049] Powder: Al 2 o 3 Powder: 2.7%, MnO Powder: 2.2%, SiO 2 Powder: 1.5%;

[0050] Solvents: ethanol: 2.7%, acetone: 3.0%, octene: 1.6%, methyl ethyl ketone: 1.8%, isopropanol: 1.2%, terpineol: 1.4%;

[0051] Additives: eucalyptus oil: 5.5%, eucalyptol: 2.4%, castor hardened oil: 3.8%, castor oil fatty acid: 1.8%;

[0052] The percentages adopted in the content of all the above-mentioned components are the percentage by weight of the corresponding components accounting for the total amount of the slurry formula;

[0053] The balance is ultrafine platinum powder with an average particle size of 3.0 μm.

[0054] 2. Mix the aforementioned zirconia ceramic metallization slurry formula for brazing and then grind it to form a slurry.

[0055] 3. Prepare the zirconia ceramic metallization layer for brazing, specifically adopt the following steps:

[0056] (1) printing the ...

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Abstract

The invention relates to a pretreatment material for brazing. In order to solve the problems that a device, which is obtained by existing brazing method of zirconia ceramic and a metal material, is not suitable for working in harsh environments and the conductive property of a metalized layer is not high, the invention provides a formula, a preparation method and application of zirconia ceramic metalized slurry for brazing. The formula comprises a powder material, a solvent, an additive and platinum powder; the components in the formula are mixed and ground to prepare slurry; and the slurry is printed or coated on the surface of zirconia green body for co-sintering to obtain the metalized layer. The obtained metalized layer has the advantages of high adhesion force, strong oxidation resistance, stable performance, good conductive performance and excellent metalizing effect and can be applied in a high temperature environment with corrosive atmosphere in a long term; the application ranges of zirconia ceramic and metal material brazing devices are significantly extended and a reliable guarantee is provided for development of high-performance ceramic devices.

Description

technical field [0001] The invention relates to a pretreatment material for brazing, in particular to a formula, preparation method and application of zirconia ceramic metallization slurry for brazing. Background technique [0002] Zirconia ceramic materials have excellent properties in many aspects, and wear-resistant devices, structural devices, sensors, etc. prepared from them are widely used in atomic energy, electric power, automobiles, metallurgy, environmental protection, chemical industry and other fields. Such as toughened zirconia ceramics, which have high mechanical strength and excellent wear resistance, and can be used to manufacture mechanical parts, wear-resistant structural devices, etc.; and functional zirconia ceramics, which have oxygen ion conduction at a certain temperature Performance, can be used to prepare solid electrolyte fuel cells, oxygen pumps, automotive oxygen sensors, zirconia oxygen analyzers, etc. [0003] In practical applications, zirconi...

Claims

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Application Information

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IPC IPC(8): C04B41/88
Inventor 鲁盛会向蓝翔李金英
Owner CHINA INSTITUTE OF ATOMIC ENERGY