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A Modified Zirconium Silicate Whisker Reinforced Alumina Ceramics

A technology of zirconium silicate whiskers and alumina ceramics, which is applied in the field of modified zirconium silicate whiskers to reinforce alumina ceramics, can solve problems such as brittleness limitation, achieve dispersion stress, improve ceramic wear resistance, and increase compactness Effect

Active Publication Date: 2021-08-10
淄博奥克非金属新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In view of the current increasingly high requirements for use, the wear resistance of single-phase alumina ceramics needs to be improved. At the same time, the brittleness of ceramics greatly limits its application in more harsh environments.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A modified zirconium silicate whisker-reinforced alumina ceramic, the modified zirconium silicate whisker-reinforced alumina ceramic contains 6.40% of its mass modified zirconium silicate whisker and 3.20% of mercapto-nano-hybrid Material.

[0023] Further, the preparation method of the modified zirconium silicate whiskers is:

[0024] (1) Pretreatment: Prepare sodium iron chromium lignosulfonate into an aqueous solution with a mass concentration of 6.3%, then add zirconium silicate whiskers, stir evenly, heat to 50°C, and then gradually add dropwise with a mass concentration of 5% Hydrogen peroxide was kept at 50°C in a water bath for 2 hours, then filtered, washed with deionized water, and dried to constant weight to obtain pretreated zirconium silicate whiskers;

[0025] (2) Modifier preparation: Add deionized water to the reactor, then add phosphoric acid and N,N-dimethylacetamide to the reactor, heat to 88-90°C, and stir at 350r / min for 30min , and then add nano-...

Embodiment 2

[0037] A modified zirconium silicate whisker reinforced alumina ceramic, the modified zirconium silicate whisker reinforced alumina ceramic contains 6.46% of its mass modified zirconium silicate whisker and -3.23% of mercapto-containing nano-doped material.

[0038] Further, the preparation method of the modified zirconium silicate whiskers is:

[0039] (1) Pretreatment: Prepare sodium iron chromium lignosulfonate into an aqueous solution with a mass concentration of 6.3%, then add zirconium silicate whiskers, stir evenly, heat to 50°C, and then gradually add dropwise with a mass concentration of 5% Hydrogen peroxide was kept at 50°C in a water bath for 2 hours, then filtered, washed with deionized water, and dried to constant weight to obtain pretreated zirconium silicate whiskers;

[0040] (2) Modifier preparation: Add deionized water to the reactor, then add phosphoric acid and N,N-dimethylacetamide to the reactor, heat to 88-90°C, and stir at 350r / min for 30min , and the...

Embodiment 3

[0052] A modified zirconium silicate whisker reinforced alumina ceramic, the modified zirconium silicate whisker reinforced alumina ceramic contains 6.44% of its mass modified zirconium silicate whisker and 3.22% of mercapto-nano-hybrid Material.

[0053] Further, the preparation method of the modified zirconium silicate whiskers is:

[0054] (1) Pretreatment: Prepare sodium iron chromium lignosulfonate into an aqueous solution with a mass concentration of 6.3%, then add zirconium silicate whiskers, stir evenly, heat to 50°C, and then gradually add dropwise with a mass concentration of 5% Hydrogen peroxide was kept at 50°C in a water bath for 2 hours, then filtered, washed with deionized water, and dried to constant weight to obtain pretreated zirconium silicate whiskers;

[0055] (2) Modifier preparation: Add deionized water to the reactor, then add phosphoric acid and N,N-dimethylacetamide to the reactor, heat to 88-90°C, and stir at 350r / min for 30min , and then add nano-...

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Abstract

The invention discloses a modified zirconium silicate whisker-reinforced alumina ceramic, which relates to the technical field of new materials. The modified zirconium silicate whisker-reinforced alumina ceramic contains 6.40-6.46% of modified silicic acid by mass Zirconium whiskers and 3.20‑3.23% thiolated nanohybrid materials. The ceramic material prepared by the modified zirconium silicate whisker reinforced alumina ceramic not only has good bending strength, but also has good hardness.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a modified zirconium silicate whisker-reinforced alumina ceramic. Background technique [0002] Ceramics, in terms of their materials, are divided into pottery, stoneware and porcelain, also commonly known as pottery, stoneware and porcelain. Alumina ceramic materials have the properties of low density, high strength, high wear resistance and chemical stability, stable friction coefficient at high temperature, etc., and have great application potential in the field of friction materials. In view of the current increasingly high requirements for use, the wear resistance of single-phase alumina ceramics needs to be improved. At the same time, the brittleness of ceramics greatly limits its application in more harsh environments. Contents of the invention [0003] The object of the present invention is to provide a modified zirconium silicate whisker-reinforced a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/80C04B35/10C04B35/622C04B35/626
CPCC04B35/10C04B35/622C04B35/62605C04B2235/3472C04B2235/3463C04B2235/349C04B2235/447C04B2235/96C04B2235/9607
Inventor 郭艳
Owner 淄博奥克非金属新材料科技有限公司
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