Chemical coarsening and metallizing process for calcium magnesium titanate ceramic

A calcium magnesium titanate ceramic, chemical roughening technology, applied in metal material coating process, liquid chemical plating, superimposed layer plating and other directions, can solve the problem of poor coating adhesion, high cost, difficult to roughen and Metallization and other problems, to achieve the effect of being beneficial to adsorption, production cost reduction, and tension reduction

Pending Publication Date: 2021-03-16
麦德美科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the method of silver paste sintering is used to attach a layer of metallic silver to the ceramic surface, but the cost is too high
In order to reduce the cost, it is now hoped to use the general electroplating method to produce, but the chemical properties of calcium magnesium titanate ceramics are stable, and it is not easy to roughen and metallize
At present, there is no effective roughening process for calcium magnesium titanate ceramics in the industry, which leads to poor adhesion of subsequent coatings, so further improvement is needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Select No. 1 sample of calcium magnesium titanate ceramics to measure its original surface roughness.

[0031] A chemical roughening and metallization process of calcium magnesium titanate ceramics, comprising the following steps,

[0032] Step 1. Degreasing: Add sample No. 1 calcium magnesium titanate ceramics to the aqueous solution of degreasing powder, soak for 5 minutes and ultrasonicate at an operating temperature of 55°C;

[0033] Step 2. Coarsening: Heat the mixture of 98% sulfuric acid and ceramic roughening agent to 45°C, add degreased calcium magnesium titanate ceramics, soak for 15 minutes, the concentration of 98% sulfuric acid is 80ml / L, ceramic roughening The operating concentration of the agent is 80g / L;

[0034] Step 3. Adjustment: Heat the working solution of the regulator to 50°C, add roughened calcium magnesium titanate ceramics, and soak for 7 minutes; the regulator includes M-Condition PartA, M-Condition PartB and M-Condition PartC, M-Condition Pa...

Embodiment 2

[0040] Select No. 2 sample of calcium magnesium titanate ceramics to measure its original surface roughness.

[0041] A chemical roughening and metallization process of calcium magnesium titanate ceramics, comprising the following steps,

[0042] Step 1. Degreasing: Add sample No. 2 calcium magnesium titanate ceramics to the degreasing powder aqueous solution, soak for 10 minutes and ultrasonicate at an operating temperature of 45°C;

[0043] Step 2. Coarsening: Heat the mixture of 98% sulfuric acid and ceramic roughening agent to 55°C, add calcium magnesium titanate ceramics after degreasing, soak for 5 minutes, the concentration of 98% sulfuric acid is 80ml / L, ceramic roughening The operating concentration of the agent is 80g / L;

[0044] Step 3. Adjustment: Heat the working solution of the regulator to 55°C, add roughened calcium magnesium titanate ceramics, soak for 3 minutes; the regulator includes M-Condition PartA, M-Condition PartB and M-Condition PartC, M-Condition Pa...

Embodiment 3

[0050] Select No. 3 sample of calcium magnesium titanate ceramics to measure its original surface roughness.

[0051] A chemical roughening and metallization process of calcium magnesium titanate ceramics, comprising the following steps,

[0052] Step 1. Degreasing: Add sample No. 3 calcium magnesium titanate ceramics to the degreasing powder aqueous solution, soak for 7 minutes and ultrasonicate at an operating temperature of 50°C;

[0053] Step 2. Coarsening: Heat the mixture of 98% sulfuric acid and ceramic roughening agent to 50°C, add calcium magnesium titanate ceramics after degreasing, soak for 10 minutes, the concentration of 98% sulfuric acid is 80ml / L, ceramic roughening The operating concentration of the agent is 80g / L;

[0054] Step 3. Adjustment: Heat the working solution of the regulator to 52°C, add roughened calcium magnesium titanate ceramics, and soak for 5 minutes; the regulator includes M-Condition PartA, M-Condition PartB, M-Condition PartC, and M-Conditi...

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PUM

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Abstract

The invention discloses a chemical coarsening and metallizing process for calcium magnesium titanate ceramic, belonging to the technical field of ceramic surface treatment. The invention aims to solvethe problem of poor adhesive force of a subsequent coating due to the fact that an effective coarsening process for the calcium magnesium titanate ceramic has not been reported in the industry at present. According to main points of a technical scheme in the invention, the process is characterized by specifically comprising the following steps of oil removing, roughening, adjusting, activating, peptizing, chemical copper plating and electroplating. With the process, the surface of the calcium magnesium titanate ceramic can be effectively roughened; the surface roughness of a ceramic sample before roughening is 0.4-0.5 micrometer, and the surface roughness of the sample after roughening is 0.8-1.0 micrometer, so good adhesive force is provided for a subsequent metal plating layer; technological operation is convenient, the whole process is a wet process, operation temperature is relatively mild, and risks are relatively low; and in addition, requirements on equipment are reduced, and the production cost of a product is also reduced.

Description

technical field [0001] The invention relates to the technical field of ceramic surface treatment, in particular to a chemical roughening and metallization process of calcium magnesium titanate ceramics. Background technique [0002] Calcium magnesium titanate ceramic is a new type of material with a temperature coefficient of dielectric constant near zero. It is widely used in the manufacture of thermally stable ceramic capacitors and microwave dielectric resonators. It is also widely used in 5G networks. The research found that adding a silver layer on the surface of calcium magnesium titanate ceramics can meet the requirements of use. [0003] At present, the method of silver paste sintering is used to attach a layer of metallic silver to the ceramic surface, but the cost is too high. In order to reduce the cost, it is now hoped to use the general electroplating method to produce, but the chemical properties of calcium magnesium titanate ceramics are stable, and it is not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/81C04B41/88C04B41/91C23C18/18C23C18/40C23C28/02C25D5/54
CPCC04B41/5127C04B41/88C04B41/91C04B41/53C04B41/4535C04B41/455C04B41/81C04B41/009C23C18/1882C23C18/405C25D5/54C23C28/023
Inventor 邢洪滨冯虎荣
Owner 麦德美科技(苏州)有限公司
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