Large-size ceramic substrate, and preparation method and production line thereof

A ceramic substrate, large-scale technology, used in ceramic molding machines, ceramic molding workshops, manufacturing tools, etc., can solve the problems of small-scale products, small application scope, inability to use large-scale alumina ceramic production, etc., to reduce pollutant emissions. , the effect of excellent mechanical strength, high electrical insulation properties

Inactive Publication Date: 2016-08-31
SINOCERAM TECH (ZHENGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The scope of application of small-sized products is small, and the process formula and equipment cannot be used for the production of large-sized alumina ceramics, so it is urgent to develop a large-sized ceramic substrate

Method used

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  • Large-size ceramic substrate, and preparation method and production line thereof
  • Large-size ceramic substrate, and preparation method and production line thereof
  • Large-size ceramic substrate, and preparation method and production line thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Large-size ceramic substrate, made of ceramic powder, binder, dispersant, plasticizer and solvent, the weight ratio of the ceramic powder, binder, dispersant, plasticizer and solvent is 1:0.04 :0.005:0.02:0.3; wherein the ceramic powder is composed of the following raw materials in weight percentage: aluminum oxide 93%, silicon dioxide 0.5%, magnesium oxide 0.3%, calcium oxide 0.2%, yttrium oxide 2%, barium carbonate 1.0 %, zirconium oxide 1%, bismuth oxide 2%.

[0026] The particle size of alumina in the ceramic powder is 1.0 μm, and the particle size of silica, magnesium oxide, calcium oxide, yttrium oxide, barium carbonate, zirconium oxide, and bismuth oxide are all 1.0 μm; the solvent is made of absolute ethanol It is composed of butanone, and the weight ratio of absolute ethanol and butanone is 1:1.

[0027] The preparation method of large-size ceramic substrate includes the following steps:

[0028] (1) Mix the ceramic powder, binder, plasticizer and solution and add t...

Embodiment 2

[0032] Large-size ceramic substrate, made of ceramic powder, binder, dispersant, plasticizer and solvent, the weight ratio of the ceramic powder, binder, dispersant, plasticizer and solvent is 1:0.14 :0.018:0.06:0.9; wherein the ceramic powder is composed of the following raw materials in weight percentage: 96% alumina, 0.5% silica, 0.3% magnesium oxide, 0.2% calcium oxide, 1% yttrium oxide, and 1.5% barium carbonate %, zirconia 0.05%, bismuth oxide 0.45%.

[0033] The particle size of alumina in the ceramic powder is 5.0 μm, and the particle size of silica, magnesium oxide, calcium oxide, yttrium oxide, barium carbonate, zirconium oxide, and bismuth oxide are all 4.0 μm; the solvent is made of absolute ethanol It is composed of butanone, and the weight ratio of absolute ethanol and butanone is 1:1.8.

[0034] The preparation method of large-size ceramic substrate includes the following steps:

[0035] (1) Mix the ceramic powder, binder, plasticizer and solution and add them to the...

Embodiment 3

[0039] Large-size ceramic substrate, made of ceramic powder, binder, dispersant, plasticizer and solvent, the weight ratio of the ceramic powder, binder, dispersant, plasticizer and solvent is 1:0.1 :0.01:0.04:0.6; wherein the ceramic powder is composed of the following raw materials in weight percentage: 95% alumina, 1% silica, 1% magnesium oxide, 0.5% calcium oxide, 1% yttrium oxide, and 0.45 barium carbonate %, zirconia 0.05%, bismuth oxide 1%.

[0040] The particle size of alumina in the ceramic powder is 3.0 μm, and the particle size of silicon dioxide, magnesium oxide, calcium oxide, yttrium oxide, barium carbonate, zirconium oxide, and bismuth oxide are all 2.0 μm; the solvent is made of absolute ethanol It is composed of butanone and the weight ratio of absolute ethanol and butanone is 1:1.5.

[0041] The preparation method of large-size ceramic substrate includes the following steps:

[0042] (1) Mix the ceramic powder, binder, plasticizer and solution and add them to the ...

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Abstract

The invention discloses a large-size ceramic substrate which is prepared from the following components in parts by weight: 1 part of ceramic powder, 0.04-0.14 part of adhesive, 0.005-0.018 part of dispersing agent, 0.02-0.06 part of plasticizer and 0.3-0.9 part of solvent. The ceramic powder is prepared from the following raw materials in percentage by weight: 93-96% of aluminum oxide, 0.5-3% of silicon dioxide, 0.3-2% of magnesium oxide, 0.2-1% of calcium oxide, 0.1-2% of yttrium oxide, 0.1-2.5% of barium carbonate, 0.05-1% of zirconium oxide and 0.1-2% of bismuth oxide. The invention also discloses a production method of the ceramic substrate and a production line required by the production method. The ceramic substrate has the characteristics of excellent mechanical strength and favorable heat conductivity. The preparation method is simple and is low in cost. The production line is simple, does not occupy the space, and effectively improves the quality of products.

Description

Technical field [0001] The invention belongs to the technical field of ceramic substrates, and specifically relates to a large-size ceramic substrate, a preparation method thereof and a production line. Background technique [0002] In recent years, new energy industries such as LED lighting, solar energy, and wind power generation have flourished. These industries require high-power electronic circuits. The original aluminum plate coated with silicone oil as the LED circuit substrate is due to poor voltage resistance, poor heat conduction to 6 times after the application of silicone oil, and aging of the silicone oil, causing problems such as LED chip light decay and dead light. It is expected that large-scale electronic ceramic substrates for LEDs will be used in the next two years. With a growth rate of 4 per year, high-performance alumina electronic ceramic substrates have broad application fields and huge market space. In the world, only a few manufacturers such as Ceramtec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/10C04B35/622C04B35/634C04B35/632B28B15/00
CPCC04B35/10C04B35/622C04B35/632C04B35/6342B28B15/00C04B2235/3215C04B2235/3206C04B2235/3208C04B2235/3225C04B2235/3244C04B2235/3298C04B2235/3418C04B2235/60C04B2235/9669C04B2235/96C04B2235/9607C04B2235/77
Inventor 吴崇隽孔丽萍蔡斌斌
Owner SINOCERAM TECH (ZHENGZHOU) CO LTD
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