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Co-ZrO2-HfO2 coating material and preparation method thereof

A co-zro2-hfo2, coating material technology, applied in coatings, metal material coating process, nanotechnology for materials and surface science, etc., can solve the problems of low hardness and poor wear resistance of coatings, etc. Achieve high hardness, wear resistance, and excellent overall performance

Inactive Publication Date: 2015-08-12
安徽鼎恒再制造产业技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of poor wear resistance and low hardness of traditional coatings, the present invention provides a Co-ZrO 2 -HfO 2 Coating material and preparation method thereof

Method used

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  • Co-ZrO2-HfO2 coating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A Co-ZrO 2 -HfO 2 Coating material, its component and the mass fraction of each component are that Co accounts for 19 parts, ZrO 2 30 parts, HfO 2 31 parts, TiO 2 Accounted for 1 part, trace elements accounted for 0.06 parts.

[0021] The trace elements are W, Ti, Al, Cu.

[0022] A Co-ZrO 2 -HfO 2 The preparation method of coating material, comprises the following steps:

[0023] (1) Prepare Co-ZrO by gas atomization method 2 -HfO 2 nanospheres;

[0024] (2) Mixing W, Ti, Al and Cu with the nanospheres prepared in the step (1) by an active agent protection method to obtain nanopowders.

Embodiment 2

[0026] A Co-ZrO 2 -HfO 2 Coating material, its component and the mass fraction of each component are that Co accounts for 23 parts, ZrO 2 38 parts, HfO 2 35 parts, TiO 2 Accounted for 1 part, trace elements accounted for 0.25 parts.

[0027] The trace elements are W, Ti, Al, Cu.

[0028] A Co-ZrO 2 -HfO 2 The preparation method of the coating material is the same as in Example 1.

Embodiment 3

[0030] A Co-ZrO 2 -HfO 2 Coating material, its component and the mass fraction of each component are that Co accounts for 27 parts, ZrO 2 46 parts, HfO 2 38 parts, TiO 2 Accounted for 1 part, trace elements accounted for 0.39 parts.

[0031] The trace elements are W, Ti, Al, Cu.

[0032] A Co-ZrO 2 -HfO 2 The preparation method of the coating material is the same as in Example 1.

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Abstract

The invention relates to a Co-ZrO2-HfO2 coating material and a preparation method thereof. The Co-ZrO2-HfO2 coating material comprises the following components in percentage by mass: 15-28% Co, 35-64% ZrO2, 25-44% of HfO2, 1% of TiO2 and 0.01-0.68% of minor elements, including W, Ti, Al and Cu. The preparation method comprises the following steps: preparing Co-ZrO2-HfO2 nanospheres by gas atomization; and mixing the nanospheres with the W, Ti, Al and Cu by an activator protection process to obtain the nano powder. The hardness of the Co-ZrO2-HfO2 nano coating can reach HRC53. The nano coating has higher hardness and wear resistance, and is applicable to high-temperature-resistant workpiece surfaces.

Description

technical field [0001] The invention relates to the technical field of thermal spraying, in particular to a Co-ZrO 2 -HfO 2 Coating materials and methods for their preparation. Background technique [0002] Thermal spraying refers to a series of processes in which fine and dispersed metallic or non-metallic coating materials are deposited on the surface of a prepared substrate in a molten or semi-molten state to form a spray deposition layer. It uses some kind of heat source (such as electric arc, plasma spraying or combustion flame, etc.) to heat powdery or filamentary metal or non-metallic materials to a molten or semi-molten state, and then sprays them at a certain speed by means of the flame itself or compressed air. A technique of depositing a pretreated substrate surface to form a surface coating with various functions. Thermal spraying utilizes energy provided by fuel gas or electric arc etc. [0003] Thermal spraying mainly has the following characteristics: 1. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/06C22C29/12B22F1/00B82Y30/00
CPCY02T50/60
Inventor 程敬卿
Owner 安徽鼎恒再制造产业技术研究院有限公司
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