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High-wear-resistance ceramic material as well as preparation method and application thereof

A ceramic material and high wear-resistant technology, which is applied in the field of ceramic materials, can solve the problems that the wear resistance of materials cannot be effectively improved, the effect of metal penetration is difficult to control, and the composition of materials is uneven, so as to reduce the difficulty of processing, avoid agglomeration, and improve The effect of stability

Pending Publication Date: 2022-03-01
XIANYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, when preparing metal-ceramic composite materials, composite casting is used to melt the metal into a liquid state at high temperature, and then pour the molten metal into the ceramic. The uneven distribution in the ceramic material makes the overall material composition uneven, resulting in the inability to effectively improve the wear resistance of the material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] This embodiment provides a high wear-resistant ceramic material, and the preparation method of the high wear-resistant ceramic material in this embodiment is as follows:

[0051] Step 1, preparing porous ceramic material:

[0052] Take a certain amount of fly ash to remove the heavy metal elements through pretreatment, and set aside;

[0053] According to the dosage ratio of 1g:3mL, evenly disperse the nano-zinc oxide in the malonic acid solution, adjust the pH to 4, then reflux the reaction for 2 hours at a water bath temperature of 80°C, filter under reduced pressure, and wash the filter residue with deionized water to The pH of the filtrate is 7, and after the filter residue is dried, the modified nano-zinc oxide is obtained for subsequent use;

[0054]According to the mass ratio of 7:1, the pretreated fly ash and modified nano-zinc oxide were ball-milled in 60% ethanol solution, and the ball-to-material ratio was set to 3:1. After ball milling for 2 hours, the aver...

Embodiment 2

[0066] This embodiment provides a high wear-resistant ceramic material, and the preparation method of the high wear-resistant ceramic material in this embodiment is as follows:

[0067] Step 1, preparing porous ceramic material:

[0068] Take a certain amount of fly ash to remove the heavy metal elements through pretreatment, and set aside;

[0069] According to the dosage ratio of 1g:2mL, evenly disperse the nano-zinc oxide in the citric acid solution, adjust the pH to 3, then reflux the reaction at a water bath temperature of 75°C for 3h, filter under reduced pressure, and rinse the filter residue with deionized water to the filtrate The pH is 7, after drying the filter residue, the modified nano-zinc oxide is obtained for subsequent use;

[0070] According to the mass ratio of 5:1, the pretreated fly ash and modified nano-zinc oxide were ball-milled in 50% ethanol solution, and the ball-to-material ratio was set at 2:1, and the average particle size after ball milling for ...

Embodiment 3

[0082] This embodiment provides a high wear-resistant ceramic material, and the preparation method of the high wear-resistant ceramic material in this embodiment is as follows:

[0083] Step 1, preparing porous ceramic material:

[0084] Take a certain amount of fly ash to remove the heavy metal elements through pretreatment, and set aside;

[0085] According to the dosage ratio of 1g:5mL, uniformly disperse the nano-zinc oxide in the acetic acid solution, adjust the pH to 5, then reflux the reaction at a water bath temperature of 85°C for 1h, filter under reduced pressure, and wash the filter residue with deionized water to the pH of the filtrate 7, after the filter residue is dried, the modified nano-zinc oxide is obtained for subsequent use;

[0086] According to the mass ratio of 10:1, the pretreated fly ash and modified nano-zinc oxide were ball-milled in 70% ethanol solution, the ball-to-material ratio was set to 4:1, and the average particle size after ball milling for...

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Abstract

The invention belongs to the technical field of ceramic materials, and discloses a high-wear-resistance ceramic material and a preparation method and application thereof.The preparation method comprises the steps that fly ash is pretreated to remove heavy metal elements, then the fly ash and modified nano-zinc oxide are subjected to ball milling till the particle size is 20 micrometers or below, ceramic powder and an adhesive are added and mixed to be uniform, heat treatment is conducted after compression molding, and the high-wear-resistance ceramic material is obtained; obtaining a porous ceramic material precursor; soaking the porous ceramic material precursor in an alcoholic solution, and grafting a modifier on the surface of the porous ceramic material precursor under the action of a silane coupling agent to obtain a porous ceramic material; heating polyvinyl chloride resin to be soft, adding a curing agent, and uniformly mixing to obtain immersion liquid; and immersing the porous ceramic material into the immersion liquid to enable the porous ceramic material to be immersed into pores of the porous ceramic material, and naturally cooling to obtain the high-wear-resistance ceramic material. According to the preparation method, the preparation raw materials are easy to obtain and low in cost, operation is easy, safety is high, and the prepared ceramic material is good in wear resistance.

Description

technical field [0001] The invention relates to the technical field of ceramic materials, in particular to a high wear-resistant ceramic material and its preparation method and application. Background technique [0002] In mechanical engineering, structural parts such as seals, bearings, cutting tools, ball valves, cylinder liners, etc. are subject to frequent friction and are prone to wear, which affects the accuracy and safety of mechanical work. [0003] In the prior art, in order to avoid this situation, a metal-ceramic composite material is proposed, which combines the characteristics of high wear resistance and high hardness of ceramics with the toughness of metal materials. However, at present, when preparing metal-ceramic composite materials, composite casting is used to melt the metal into a liquid state at high temperature, and then pour the molten metal into the ceramic. The uneven distribution in the ceramic material makes the overall material composition uneven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/565C04B35/584C04B35/622C04B35/626C04B38/02C04B38/00C04B41/89
CPCC04B35/565C04B35/584C04B35/62204C04B35/62605C04B35/6261C04B38/02C04B38/00C04B41/89C04B41/52C04B41/009C04B2235/3284C04B2235/5427C04B2235/5436C04B2235/658C04B2235/6562C04B2235/6567C04B2235/96C04B41/4922C04B41/4834C04B41/4535C04B41/4838C04B41/48C04B41/4892C04B41/522C04B41/4823
Inventor 曾利霞
Owner XIANYANG NORMAL UNIV