Wear-resistant and anti-friction zirconia ceramic coating on metal surface and preparation method thereof

A zirconia ceramic and metal surface technology, applied in metal material coating process, coating, liquid chemical plating and other directions, can solve the problems of increasing the wear resistance and friction reduction performance of zirconia ceramic coating, and achieve good friction reduction effect. , Simple operation, long wear life effect

Active Publication Date: 2020-05-05
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, there is no relevant report in the existing literature on how to incorporate tungsten dioxide into the zirconia ceramic coating to increase the wear resistance and friction reduction performance of the zirconia ceramic coating.

Method used

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  • Wear-resistant and anti-friction zirconia ceramic coating on metal surface and preparation method thereof
  • Wear-resistant and anti-friction zirconia ceramic coating on metal surface and preparation method thereof
  • Wear-resistant and anti-friction zirconia ceramic coating on metal surface and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] A metal surface wear-resisting anti-friction ZrO 2 Ceramic coating and method for its preparation. The metal material is cemented carbide sheet (the main components are WC, TiC, Co), and the surface of the cemented carbide is coated with ZrO 2 ceramic coating. where ZrO 2 The preparation method of ceramic coating is: prepare ZrO 2 Composite slurry, using this composite slurry to form micron-scale fine jets and nano-scale droplet groups under the action of electric field force, and deposit ZrO layer by layer on the cemented carbide substrate 2 ceramic coating. The concrete steps of its preparation method are:

[0042] 1. Metal substrate pretreatment

[0043] The surface of the cemented carbide sheet (three-dimensional size: 20 mm × 20 mm × 10 mm) was polished to a mirror surface, and ultrasonically cleaned in acetone and absolute ethanol solutions for 20 min, respectively.

[0044] 2. Slurry preparation

[0045] Mix and stir 4.1g zirconium n-propoxide, 15.7g abso...

Embodiment 2

[0051] A metal surface wear-resisting anti-friction ZrO 2 Ceramic coating and method for its preparation. The metal material is 316L stainless steel sheet, and the surface of the stainless steel is coated with ZrO 2 ceramic coating. where ZrO 2 The preparation method of ceramic coating is: prepare ZrO 2 Composite slurry, using this composite slurry to form micron-scale fine jets and nano-scale droplet groups under the action of electric field force, deposit ZrO layer by layer on the stainless steel substrate 2 ceramic coating. The concrete steps of its preparation method are:

[0052] 1. Metal substrate pretreatment

[0053] The 316L stainless steel sheet (three-dimensional size: 20mm×20mm×10mm) was polished to a mirror surface, and ultrasonically cleaned in acetone and absolute ethanol solutions for 20 min, respectively.

[0054] 2. Slurry preparation

[0055] Mix and stir 4.1g zirconium n-propoxide, 15.7g absolute ethanol and 1g glacial acetic acid for 2h to obtain Z...

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Abstract

The invention discloses a metal surface wear-resisting anti-friction zirconia ceramic coating and a preparation method thereof. The preparation method comprises the steps that zirconia composite slurry is prepared by adding zirconia nano-powder and tungsten disulfide nano-powder into zirconia sol; the zirconia composite slurry is formed into micron-sized jet under the action of electric field force and atomized into nano-sized liquid drops; a zirconia ceramic coating precursor is deposited on a metal substrate; and the zirconia ceramic coating is obtained on a metal surface after the zirconiaceramic coating precursor is subjected to vacuum calcination. The ceramic coating prepared by the preparation method can synthesize excellent performances of ZrO2 and WS2, and has the advantages of low friction coefficient, stable chemical property, long wear-resisting life, high temperature resistance and the like.

Description

technical field [0001] The invention relates to a metal surface material, in particular to a metal surface wear-resistant and friction-reducing zirconia ceramic coating and a preparation method thereof. Background technique [0002] The statements herein merely provide background information related to the present invention and may not necessarily constitute prior art. [0003] Wear is one of the three major forms of failure of metallic materials. According to statistics, the annual energy consumption due to friction and wear accounts for 30% to 50% of the total energy consumption. Therefore, in order to reduce the material loss caused by friction and wear on the two contact surfaces, wear-resistant coatings have received extensive attention and rapid development. Coating ceramic coatings on metal surfaces with reasonable technology is an effective way to protect and strengthen metal surfaces. ZrO 2 Ceramics have a thermal expansion coefficient similar to that of metals,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/12C23C24/00
CPCC23C18/1204C23C18/1216C23C18/1254C23C24/00
Inventor 李学木邓建新张亮亮孙婕
Owner SHANDONG UNIV
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