A kind of calcium-aluminosilicate glass-based low-temperature co-fired ceramic material and preparation method thereof

A technology of low-temperature co-fired ceramics and calcium-aluminum-silicate glass, which is applied in the field of low-temperature co-fired ceramics and can solve problems such as unfavorable industrial production and low thermal conductivity of materials

Inactive Publication Date: 2016-05-11
梅州市溪山陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation methods of the basic materials reported above all use aluminum nitride and glass materials to increase the thermal conductivity of the material, and the thermal conductivity of the prepared material is low, and it is not conducive to large-scale industrial production.

Method used

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  • A kind of calcium-aluminosilicate glass-based low-temperature co-fired ceramic material and preparation method thereof
  • A kind of calcium-aluminosilicate glass-based low-temperature co-fired ceramic material and preparation method thereof
  • A kind of calcium-aluminosilicate glass-based low-temperature co-fired ceramic material and preparation method thereof

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preparation example Construction

[0033] Correspondingly, the present invention also provides a method for preparing a calcium-aluminosilicate glass-based low-temperature co-fired ceramic material, comprising the following steps:

[0034] After mixing 40-60 parts by weight of calcium-aluminosilicate glass, 2-5 parts by weight of silicon carbide, 10-20 parts by weight of forsterite and 5-10 parts by weight of carbon nanotubes, adding ethanol, ball milling and drying to obtain low-temperature co-fired ceramic powder;

[0035] Adding solvent, binder, plasticizer, dispersant and wetting agent to the low-temperature co-fired ceramic powder, mixing uniformly, tape-casting, drying and sintering to obtain low-temperature co-fired ceramic material.

[0036] Wherein, the calcium aluminum silicate glass is made of SiO 2 、Al 2 o 3 and CaO preparation. The present invention uses calcium-aluminosilicate glass as the basic glass, and its main crystal phase is silicate p-wollastonite with a chain structure, which is arran...

Embodiment 1

[0044] Step (1) Weigh 50g of calcium-aluminosilicate glass, 5g of SiC powder, 20g of forsterite and 5g of carbon nanotubes, mix them, add an appropriate amount of ethanol, put them in a planetary ball mill and mix them for 3 hours at 300r / min, and then Dry at 120°C to obtain low temperature co-fired ceramic material powder.

[0045] Step (2) The mass percent of organic matter added to the low-temperature co-fired ceramic material powder is: trichlorethylene 76%, polyvinyl butyral 14%, dibutyl phthalate 3%, triglyceride A solution of 4.8% glyceride and 2.2% polyoxyethylene ester, uniformly mixed, defoamed, cast, dried, heated to 450°C for 2 hours, then heated to 500°C for 5 hours, then heated to 650°C for heat preservation After 2 hours, a lime-aluminosilicate glass-based low-temperature co-fired ceramic material was obtained.

[0046] The lime-aluminosilicate glass-based low-temperature co-fired ceramic material prepared in this example was measured. After testing, the therm...

Embodiment 2

[0048] Step (1) Weigh 40g of calcium-aluminosilicate glass, 5g of SiC powder, 20g of forsterite and 10g of carbon nanotubes, mix them, add an appropriate amount of ethanol, put them in a planetary ball mill and mix them for 3 hours at 300r / min, and then Dry at 120°C to obtain low temperature co-fired ceramic material powder.

[0049] Step (2) The mass percent of organic matter added to the low-temperature co-fired ceramic material powder is: trichlorethylene 76%, polyvinyl butyral 14%, dibutyl phthalate 3%, triglyceride A solution of 4.8% glyceride and 2.2% polyoxyethylene ester, uniformly mixed, defoamed, cast, dried, heated to 450°C for 2 hours, then heated to 500°C for 5 hours, then heated to 650°C for heat preservation After 2 hours, a lime-aluminosilicate glass-based low-temperature co-fired ceramic material was obtained.

[0050] The lime-aluminosilicate glass-based low-temperature co-fired ceramic material prepared in this example was measured. After testing, the ther...

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Abstract

The invention provides a calcium aluminum silicon glass base low-temperature cofiring ceramic material and a preparation method thereof. The ceramic material comprises the following components in parts by weight: 40-60 parts of calcium aluminum silicon glass, 2-5 parts of silicon carbide, 10-20 parts of forsterite, and 5-10 parts of carbon nano tube. According to the invention, the calcium aluminum silicon glass is adopted as basic glass; the principal crystalline phase is silicate p-wollostonite adopting a chain structure, and is crossed and arrayed to net in a needle-shaped manner in the glass body; the material is enabled to have characteristics of being abrasion resistant, corrosion-resistant and shock resistant; the silicon carbide, the forsterite and the carbon nano tube are added in the calcium aluminum silicon glass, and the synergistic effect among the materials is utilized, so that the thermal conductivity of the prepared ceramic material is improved; the melting point of the calcium aluminum silicon glass is further reduced; experimental result shows that the coefficient of thermal expansion of the prepared ceramic material is 6.0*10<-6> / K, the dielectric constant of the ceramic material is 5.2 (1 MHz), and the thermal conductivity of the ceramic material is 32 W / mK.

Description

technical field [0001] The invention relates to the technical field of low-temperature co-fired ceramics, in particular to a calcium-aluminosilicate glass-based low-temperature co-fired ceramic material and a preparation method thereof. Background technique [0002] With the rapid development of modern information technology, miniaturization, light weight = integration and high frequency of electronic circuits have put forward requirements for electronic devices such as small size, high frequency, high reliability and high integration. Selecting appropriate ceramics that can be co-fired with conductive materials such as silver at a temperature not exceeding 900°C to prepare multilayer components or embed passive devices in multilayer circuits has become the inevitable trend of the above trend, as passive integration Low-temperature co-fired ceramics as the main dielectric material of components has also become an important development trend. [0003] Low-temperature co-fire...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B32/00
Inventor 陈帆
Owner 梅州市溪山陶瓷有限公司
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