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Method for preparing high-entropy borosilicate ceramic surface material by adopting thermal spraying technology

A ceramic surface, thermal spraying technology, applied in the direction of metal material coating process, coating, fusion spraying, etc., can solve the problems of ceramic coating damage, reduction of coating mechanical properties, coating holes, etc., to achieve fracture toughness and Increased bending strength, reduced use and maintenance costs, and improved pore sealing performance

Inactive Publication Date: 2021-03-02
ZHAOSHAN TECH BEIJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Advanced ceramics have excellent properties such as high temperature resistance, oxidation resistance, corrosion resistance, and wear resistance, but ceramics are also prone to damage and peeling off during thermal shock or knocking.
In addition, due to insufficient melting of ceramics in atmospheric plasma thermal spraying technology, it is easy to cause holes in the coating, which will reduce the mechanical properties of the coating.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0041] (1) Burn the continuous borosilicate ceramics in an oxidizing environment at 1000°C for 2 hours, and then chop the borosilicate ceramics to 1-5mm;

[0042] (2) After polishing the surface of the stainless steel plate, clean the surface with acetone;

[0043] (3) After blasting the above-mentioned stainless steel plates, clean the surface with acetone;

[0044] (4) After preheating the above-mentioned stainless steel plate, use APS technology to deposit a layer of Ni-Cr coating with a thickness of 0.1 to 0.2mm on the surface of the stainless steel plate;

[0045] (5) Depositing Al on the surface of the above-mentioned stainless steel plate using APS technology 2 o 3 coating.

Embodiment example 2

[0047] (1) Short-cut the borosilicate ceramics to 1-5mm, and burn them in an oxidizing environment at 1000°C for 2 hours.

[0048] (2) After polishing the surface of the stainless steel plate, clean the surface with acetone;

[0049] (3) After blasting the above-mentioned stainless steel plates, clean the surface with acetone;

[0050] (4) After preheating the above-mentioned stainless steel plate, use APS technology to deposit a layer of Ni-Cr coating with a thickness of 0.1 to 0.2mm on the surface of the stainless steel plate;

[0051] (5) Depositing Al on the surface of the above-mentioned stainless steel plate using APS technology 2 o 3 coating.

[0052] Thermal spraying Al on the surface of stainless steel 2 o 3 Ceramic coating pore technology: after the borosilicate ceramic coating is prepared on the surface of stainless steel by thermal spraying process, the uncoated Al 2 o 3 The powder remains on the surface of the ceramic coating, causing Al 2 o 3 The porosit...

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PUM

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Abstract

The invention discloses a method for preparing a high-entropy borosilicate ceramic surface material by adopting a thermal spraying technology. The method comprises the following steps that surface pretreatment is performed on the surface of a compound with continuous borosilicate ceramic or chopped borosilicate ceramic to obtain a good interface; and the pretreated compound is fixed to the surfaceof a base material to be coated through spraying in advance, then thermal spraying is performed on the base material through the thermal spraying technology, and a boron-silicon ceramic composite coating is prepared. The method has the beneficial effects that an industrial dust collector is used for sucking residual powder on the surface of a ceramic coating, hole sealing of the ceramic coating is completed in a vacuum adsorption mode, a compact, uniform and flat compact layer is formed on the surface of the ceramic coating in a ceramic powder laser cladding mode, so that the pore sealing performance of the thermal spraying ceramic coating is improved, the service life of a metal-based ceramic functional part is prolonged, and the use and maintenance cost are reduced.

Description

technical field [0001] The invention relates to the technical field of thermal spraying, in particular to a method for preparing high-entropy borosilicate ceramic surface materials by adopting thermal spraying technology. Background technique [0002] Surface engineering is a related process of modifying the surface of a material by obtaining a thin film on the surface of the material through a series of related technologies, including: plasma enhancement, ion bombardment, self-assembly, nanofabrication, chemical treatment or other processes. Thermal spraying technology is an important part of surface engineering technology. It is a method of melting or gasifying powder spraying materials by heating, and then spraying the melted or gasified powder on the surface of parts to form a coating through high-speed airflow. method. Thermal spraying technology is mainly used for pre-protection of high-temperature, oxidation-resistant, wear-resistant, and corrosion-resistant parts, r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C23C4/12C23C4/10
CPCC23C24/10C23C4/12C23C4/10
Inventor 邰召山
Owner ZHAOSHAN TECH BEIJING CO LTD