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Metal nickel ceramic coating good in high-temperature-cracking-resistant peeling capacity and manufacturing method of metal nickel ceramic coating

A technology of ceramic coating and manufacturing method, applied in the field of cermet coating materials, can solve the problems of limiting the use range and application field of cermet coating, unfavorable energy saving and green development, single function, etc., to improve the resistance to high temperature cracking and peeling , Enhance the effect of atomic orbital interaction and simple method operation

Inactive Publication Date: 2015-11-18
ANHUI PUYUAN SEPARATION MACHINERY MFG CO LTD
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AI Technical Summary

Problems solved by technology

The cermet coating prepared in the prior art has many defects such as single function, high cost, low toughness, low strength and poor coating applicability in practical application, which limits the use range and application field of the cermet coating, which is not conducive to energy saving of enterprises The realization of the goal of green development

Method used

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Embodiment Construction

[0012] The metal nickel ceramic coating with good high-temperature cracking and peeling resistance is characterized in that it is made of the following raw materials in parts by weight: nano-cerium dioxide 16, nickel powder 44, barium oxide 14, aluminum oxide 15, iron Powder 17, sodium borate 6, silica sol 8, calcium carbonate fiber 6, 8-hydroxyquinoline 7, phyllobenzoate 12, appropriate amount of water.

[0013] The preparation method comprises the following steps:

[0014] (1) Treat nano-cerium oxide at 600-700°C for 30-50 minutes at high temperature, quickly cool to room temperature with liquid nitrogen, add sodium borate and ultrasonically shake for 20-40 minutes, add phylloyl benzoate and mix well, Stir for 5-8h, dry to constant weight;

[0015] (2) Add alumina to the ball mill, spray into mist silica sol and mix well, add 8-hydroxyquinoline, and perform ball milling, mixing and breaking up at room temperature to obtain modified alumina;

[0016] (3) Calcining modified ...

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Abstract

The invention discloses a metal nickel ceramic coating good in high-temperature-cracking-resistant peeling capacity. Metal nickel is selected as a metal base. The surface of base metal is coated with a coating manufactured with barium oxide, alumina and other refractory materials as the ceramic phase. Alloy elements in the base metal will be diffused to an interface and have a reaction that NiO and M react to produce MO and Ni and other interface reactions with NiO and other matter in the coating, precipitated active nickel atoms and the base metal M are reduced to form Ni-M metallic bonds, and therefore the adherence between the metal ceramic coating and the base metal is improved; rare earth nano cerium dioxide is high in activity, and therefore the interaction between atom orbits of adsorbed molecules can be enhanced, and the reactions are promoted; and added iron powder and added nickel powder are combined so that the permeability of the coating can be enhanced. According to the metal nickel ceramic coating, an effective solution is provided for improving the high-temperature-cracking-resistant peeling capacity of metal ceramic coatings. A method is easy to operate and high in efficiency, and the service life of the coating can be longer.

Description

technical field [0001] The invention relates to the technical field of metal ceramic coating materials, in particular to a metal nickel ceramic coating with good high-temperature cracking and peeling resistance and a manufacturing method thereof. Background technique [0002] In recent years, ceramic coating materials are ceramic materials that have received widespread attention. Traditional ceramic materials are brittle, which is not conducive to the further processing of ceramic materials, and also leads to slightly insufficient performance of ceramic materials in many fields. Metal-ceramic coating is a composite coating that not only has the good strength and toughness of metal, but also has the advantages of high temperature resistance, wear resistance and corrosion resistance of ceramics. Therefore, metal-ceramic coatings have gained important applications in many fields such as aviation and aerospace, such as rocket engine components that are subjected to complex and h...

Claims

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Application Information

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IPC IPC(8): B22F7/04C22C30/00
Inventor 沈泽文沈云翔黄帅
Owner ANHUI PUYUAN SEPARATION MACHINERY MFG CO LTD
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