Preparation method of high-performance ceramic reinforced iron-based composite material

An iron-based composite material and composite material technology are applied in the field of high-performance ceramic reinforced iron-based composite materials and their preparation, and achieve the effects of good stress and load, good fluidity, and excellent shock resistance

Active Publication Date: 2021-03-12
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiencies of the prior art, the present invention provides a preparation method of a high-performance ceramic reinforced iron-based composite material aiming at the existing technological defects. This method solves the prob

Method used

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  • Preparation method of high-performance ceramic reinforced iron-based composite material
  • Preparation method of high-performance ceramic reinforced iron-based composite material
  • Preparation method of high-performance ceramic reinforced iron-based composite material

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0071]Example 1:

[0072](1) 500 nanometer zirconia powder produced by the 5 micron oxide powder produced by Aladdin was mixed with a mass ratio of 1: 1.5, and obtained the first mixture. The first step is obtained from the mixture HPEG2400, the stabilizer Y2O3, The thickener CMC, deionized water is mixed according to mass ratio: 120: 1: 8: 3: 100, and the ball mill is stirred for 3 hours to obtain a ceramic slurry having good fluidity.

[0073]The 15 PPI polyurethane foam was taken into a 50 x 50 × 20 mm block, and the ceramic slurry was evenly coated on a 15 ppi polyurethane foam template to obtain a first prefabricated body, and the vacuum was 10 minutes until the surface of the polyurethane foam was not closed. The first preform was placed in an oven, which was fully dried at 40 ° C and 80 ° C for 24 hours.

[0074]The three-dimensional network prefabricate was heated under the air atmosphere to heat the temperature of 5 ° C to 1450 ° C for 2 hours, and three-dimensional network ZTA cera...

Example Embodiment

[0078]Example 2:

[0079](1) The 1000 nanometer zirconia powder produced by Allathenin and the 1000 nanometer zirconia powder produced by the Pharmaceutical powder produced by the Siana drug was mixed in mass than 1: 1, and the first mixture was obtained. The first step is obtained from the mixture HPEG2400, the stabilizer Y2O3The thickener CMC, deionized water is mixed according to mass ratio: 120: 0.5: 6: 3: 100, and the ball mill is stirred for 4 hours to obtain a ceramic slurry having good fluidity.

[0080]The 35 ppi polyurethane foam was cut into 60 x 60 x 15 mm block, and the ceramic slurry was evenly applied to the 35 ppi polyurethane foam template to obtain a first prefabricated body, and the vacuum was taken for 20 minutes until the polyurethane foam surface was not closed. The first preform was placed in an oven, and the holding was sufficiently dried at 40 ° C and 80 ° C for 48 hours.

[0081]The three-dimensional network prefabricate was heated to 1550 ° C for 3 hours under the ...

Example Embodiment

[0085]Example 3:

[0086](1) The first mixture was mixed with the 800 nanometer zirconia powder produced by the 4 micron oxide powder produced by Aladdin. The first step is obtained from the mixture HPEG2400, the stabilizer Y2O3, The thickener CMC, deionized water is mixed according to mass ratio: 120: 0.8: 7: 3: 100, and the ball mill is stirred again to obtain a ceramic slurry having good fluidity.

[0087]The 25Ppi polyurethane foam was cut into 50 x 50 x 15 mm block, and the ceramic slurry was evenly applied to the 25 ppi polyurethane foam template to obtain a first prefabricated body, and the vacuum was 15 minutes until the polyurethane foam surface was not closed. The first preform was placed in an oven, and it was sufficiently dried at 40 ° C and 80 ° C for 36 hours.

[0088]The three-dimensional network preform was heated to 1500 ° C for 2.5 hours under the air atmosphere of 8 ° C for 2.5 hours, and three-dimensional network ZTA ceramics were obtained.

[0089](2) According to the mass ...

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Abstract

The invention relates to a high-performance ceramic reinforced iron-based composite material and a preparation method thereof, and belongs to the technical field of composite materials. The compositematerial comprises an iron matrix and a three-dimensional network-shaped ZTA ceramic. The three-dimensional network-shaped ZTA ceramic is a three-dimensional network-shaped ZTA ceramic with a macroscopic size, and the iron matrix penetrates through the three-dimensional network-shaped ZTA ceramic and coats the surface of the three-dimensional network-shaped ZTA ceramic. The preparation method comprises the following steps of sintering zirconium oxide and aluminum oxide ceramic mixed powder slurry through a template replication method to obtain the three-dimensional network-shaped ZTA ceramic;casting and infiltrating molten iron into the three-dimensional network-shaped ZTA ceramic to obtain the three-dimensional network-shaped ZTA ceramic reinforced iron-based composite material. The composite material has the advantages of excellent shock resistance, impact resistance and wear resistance under various severe working conditions.

Description

technical field [0001] The invention relates to the technical field of composite materials; in particular, it relates to a high-performance ceramic reinforced iron-based composite material and a preparation method thereof. Background technique [0002] The application and research of wear-resistant materials play an important role in today's industrial development, such as mechanical equipment in cement, machinery, electric power, mining, metallurgy, shipbuilding, chemical and coal industries, grinding balls, grinding discs, Grinding rollers and accessories, as well as the crushing wall, crushing plate, impact crusher blow bar, etc. of the crusher; large dredging pump flow parts, slurry pump parts, conveying pipelines, etc. In the production process, it is not only worn by hard abrasives, but also in harsh wear environments such as corrosion, high temperature oxidation, and high impact, so it is very prone to rapid wear and failure. Today's industrial wear-resistant materia...

Claims

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Application Information

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IPC IPC(8): C22C33/00C23C18/32C04B38/06C04B35/622C04B35/48C04B35/10
CPCC22C33/00C22C33/006C23C18/1639C23C18/32C04B38/0615C04B35/48C04B35/10C04B35/622
Inventor 李专黄天行赵一博肖鹏
Owner CENT SOUTH UNIV
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