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Powder for ceramic metallizing paste and its prepn

A technology of ceramic metallization and powder, which is applied in the field of powder for ceramic metallization paste and its preparation, can solve the problems of poor adaptability, narrow adaptability, and high metallization temperature of ceramics, and improve the temperature range of sintering densification and improve sealing. Enhanced strength and reactivity

Active Publication Date: 2007-01-03
CHANGSHU CITY YINYANG CERAMIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Both No. 2 and No. 3 formulas have shortcomings. The former has too many types of oxides, and the latter has a higher metallization temperature and poor adaptability to porcelain.
[0010] Properly adjusted on the basis of No. 2 and No. 3 formulas, after reducing the types of oxides, No. 4 formula is adjusted, which can be better suitable for Mg-Al-Si series 95% alumina ceramics, but MnO raw materials are used in the formula , because MnO is very unstable and easily oxidized to MnO 2 etc., so it is difficult to master the matching
[0011] The types of oxides are simplified in formula No. 5, but this formula is only suitable for transparent corundum ceramics, and the adaptability is too narrow
[0012] Formula No. 6 has a simple composition and is suitable for a variety of ceramics, but the metallization temperature is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] a) In parts by weight, first weigh 60 parts of molybdenum powder and 40 parts of the glass phase component, then place the weighed powder in an oven to dry, the oven temperature is controlled at 70°C, and the time is 120min. At the same time, Place the ball milling pot and agate balls used for grinding in an oven and dry for 120 minutes. After the powder comes out of the oven, put it into a ball mill pot that has been dried and equipped with agate balls that have also been dried. Add absolute ethanol with powder 1:1 (weight ratio), then place the ball mill pot on the ball mill for ball milling, control the frequency of the ball mill to 30Hz, and rotate and grind for 15h, wherein the glass phase component is 30 parts of alumina , 2 parts of calcium oxide, 30 parts of silicon dioxide, 30 parts of manganese powder, 4 parts of titanium powder, 4 parts of zirconium dioxide;

[0029] b) introduce the powder obtained by ball milling in step a) into a heated water-bath dry dish...

Embodiment 2

[0040] a) In terms of parts by weight, first weigh 70 parts of molybdenum powder and 30 parts of glass phase components, then place the weighed powders in an oven to dry, the oven temperature is controlled at 80°C, and the time is 120min. At the same time, Place the ball milling pot and agate balls used for grinding in an oven and dry for 120 minutes. After the powder comes out of the oven, put it into a ball mill pot that has been dried and equipped with agate balls that have also been dried. Add dehydrated ethanol with powder 1:1 (weight ratio), then place the ball mill jar on the ball mill for ball milling, control the frequency of the ball mill to 35Hz, and rotate and grind for 20h, wherein the glass phase component is 25 parts of alumina , 2 parts of calcium oxide, 35 parts of silicon dioxide, 35 parts of manganese powder, 3 parts of titanium powder, 3 parts of zirconium dioxide;

[0041] b) Introduce the powder obtained by ball milling in step a) into a heated water-bath...

Embodiment 3

[0052] a) In terms of parts by weight, first weigh 80 parts of molybdenum powder and 20 parts of glass phase components, then place the weighed powder in an oven to dry, the oven temperature is controlled at 80°C, and the time is 120min. At the same time, Place the ball milling pot and agate balls used for grinding in an oven and dry for 120 minutes. After the powder comes out of the oven, put it into a ball mill pot that has been dried and equipped with agate balls that have also been dried. Add dehydrated ethanol with powder 1:1 (weight ratio), then place the ball mill jar on the ball mill for ball milling, control the frequency of the ball mill to 40Hz, and rotate and grind for 25h, wherein the glass phase component is 40 parts of alumina , 0.5 parts of calcium oxide, 25 parts of silicon dioxide, 39 parts of manganese powder, 2.5 parts of titanium powder, 2 parts of zirconium dioxide;

[0053] b) Introduce the powder obtained by ball milling in step a) into a heated water-b...

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PUM

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Abstract

The powder for ceramic metallizing paste and its preparation process belongs to the field of ceramic metallizing material applying technology. The ceramic metallizing powder consists of molybdenum powder in 60-80 weight portions and glass phase component in 20-40 weight portions. The powder for ceramic metallizing paste has reasonable composition, proper metal titanium content, capacity of strengthening activity of the metallizing layer and ceramic, raised sealing strength of metallized ceramic, metallizing sintering temperature lowered to 1400-1450 deg.c and expanded compact sintering temperature range.

Description

technical field [0001] The invention relates to a powder for ceramic metallization paste and a preparation method thereof, belonging to the technical field of application of ceramic metallization materials. Background technique [0002] For ceramic body materials such as microwave electronic devices, discharge devices, switch casings, detection sensors, and ultra-high-frequency high-power electronic devices, etc., all involve metallization of both ends of the ceramic substrate, that is, at both ends of the ceramic substrate The surface is given a metallized coating, and the metallization paste must be used to metallize the two ends of the ceramic substrate. The metallization paste is obtained by mixing and stirring the metallization powder and the binder according to the required ratio. At present, there are roughly sintered metal powder method, activated metal method, thick film method, etc. for ceramic metallization paste powder and its preparation methods. [0003] In th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/88
Inventor 高永泉郝志龙翟文斌
Owner CHANGSHU CITY YINYANG CERAMIC CO LTD
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