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Low-temperature co-fired ceramic material and preparation method thereof

A low-temperature co-fired ceramic and ceramic technology, which is applied in the field of low-temperature co-fired ceramic materials, can solve the problems of affecting the dielectric properties and large dielectric loss, and achieve the effect of good similar compatibility characteristics.

Active Publication Date: 2019-10-25
上海晶材新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent application number 201010582325.7 discloses a low-softening point glass-ceramic low-temperature co-fired ceramic material, mainly consisting of a low-softening point glass phase and a ceramic phase, and the mass ratio of the glass phase to the ceramic phase is (4.5~2):3 , the addition of a large amount of glass phase affects the dielectric properties, especially the large dielectric loss

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  • Low-temperature co-fired ceramic material and preparation method thereof
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  • Low-temperature co-fired ceramic material and preparation method thereof

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preparation example Construction

[0034] In another embodiment of the present invention, a method for preparing the above-mentioned low-temperature co-fired ceramic material is also provided, and the specific steps are as follows:

[0035] CaCO 3 、H 3 BO 3 , SiO 2 、TiO 2 , ZrO 2 、Na 2 CO 3 、K 2 CO 3 , Li 2 CO 3 Wet mixing, drying, melting into molten glass, quenching the molten glass, and crushing into glass powder to obtain CBS glass-ceramic powder.

[0036] According to the general chemical formula of CBS ceramics ((1-x-y)CaO-0.5xB 2 o 3 -ySiO 2 Where 0.253 、H 3 BO 3 and SiO 2 , carry out wet mixing treatment, sieve after drying, and pre-fire to obtain a ceramic block, crush the ceramic block, and sieve to obtain (1-x-y)CaO-0.5xB 2 o 3 -ySiO 2 Ceramic powder.

[0037] The CBS glass-ceramic powder and the preferred CBS ceramic powder are uniformly wet-mixed, dried, and sieved to obtain a low-temperature co-fired ceramic powder.

[0038] During the implementation of the present invention,...

Embodiment 1

[0052] 402gCaCO 3 , 549gH 3 BO 3 , 465gSiO 2 , 15gTiO 2 , 20gZrO 2 , 21.2gNa 2 CO 3 , 21gK 2 CO 3 , 20gLi 2 CO 3 Put it in a ball mill jar, then add 1000g of deionized water, 3kg of zirconia balls with a diameter of 10mm, mill at a speed of 250r / min for 5h, filter out the zirconia balls, and then dry the mixed slurry in an oven at 140°C. Pass the powder through a 60-mesh sieve, put it in a melting furnace at 1400 ° C, melt for 4 hours, and finally quench the molten glass into a glass block, and then according to the ratio of material:ball:alcohol ratio of 1:4:2, the diameter of 2mm Put the zirconia balls into the alumina tank, mill at a speed of 250r / min for 4h, and finally dry the glass slurry and pass through a 120-mesh sieve to obtain CBS glass-ceramic powder with a particle size of 3-5μm.

[0053] 3molCaCO 3 Powder, 2molH 3 BO 3 powder, 2molSiO 2 The powder is placed in a ball mill tank, mixed according to the material: ball: water ratio of 2:2:1, ball mille...

Embodiment 2

[0057] 402gCaCO 3 , 549gH 3 BO 3 , 465gSiO 2 , 15gTiO 2 , 20gZrO 2 , 21.2gNa 2 CO 3 , 21gK 2 CO 3 , 20gLi 2 CO 3 Put it in a ball mill jar, then add 1000g of deionized water, 3kg of zirconia balls with a diameter of 10mm, mill at a speed of 250r / min for 5h, filter out the zirconia balls, and then dry the mixed slurry in an oven at 140°C. Pass the powder through a 60-mesh sieve, put it in a melting furnace at 1400 ° C, melt for 4 hours, and finally quench the glass liquid into a glass block, and then according to the ratio of material:ball:alcohol ratio of 1:4:2, the diameter is 2mm. Put the zirconia balls into the alumina tank, mill at a speed of 250r / min for 4 hours, and finally dry the glass slurry and pass through a 120-mesh sieve to obtain CBS glass-ceramic powder with a particle size of 3-5μm.

[0058] 2molCaCO 3 Powder, 2molH 3 BO 3 powder, 1molSiO 2 The powder is placed in a ball mill tank, mixed according to the material: ball: water ratio of 2:2:1, ball...

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Abstract

The invention discloses a low-temperature co-fired ceramic material and a preparation method thereof. The low-temperature co-fired ceramic material is prepared from CaO-B2O3-SiO2 system glass ceramicsand CaO-B2O3-SiO2 system ceramic, wherein the CBS glass content is 72-95wt%, and the CBS ceramic content is 5-28wt%. Compared with an existing material, the low-temperature co-fired ceramic materialis prepared from the adopted main raw materials of calcium carbonate, boric acid and silicon dioxide and is simple in preparation process and low in cost. The prepared low-temperature co-fired ceramicmaterial has the low dielectric constant and the low loss (less than 0.0017), is sintered to be dense at the temperature of 840 DEG C to 920 DEG C and meanwhile can be matched and co-fired with goldand silver.

Description

technical field [0001] The invention relates to the field of low-temperature co-fired ceramic materials and the preparation thereof, in particular to a method for preparing low-temperature co-fired ceramic materials through solid-liquid phase reaction, and thereby obtaining low-temperature co-fired ceramic materials with low dielectric constant and low dielectric loss . Background technique [0002] The existing low-temperature co-fired ceramic materials can be divided into two systems: one is a glass-ceramic composite material system, and the other is a glass-ceramic material system. [0003] The existing low-temperature co-fired ceramic materials of the glass-ceramic composite system are mainly ceramic phases, such as zirconia, alumina, silicon oxide, etc., in order to meet the requirement of low loss. Since the sintering temperature of a single ceramic phase is around 1400-1900°C, low-melting-point glass needs to be added in order to lower the sintering temperature. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C10/00C04B35/057
CPCC03C10/00C04B35/057
Inventor 李自豪兰开东
Owner 上海晶材新材料科技有限公司