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Heat-insulating wear-resistant quartz ceramic

A technology of quartz ceramics and zeolite powder, applied in the field of heat-insulating and wear-resistant quartz ceramics, can solve the problems of increased use cost, general heat insulation, poor wear resistance, etc. Effect

Active Publication Date: 2018-11-06
徐州华焰特种陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing quartz ceramics have average heat insulation, poor wear resistance, and are easy to burst, resulting in increased use costs

Method used

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  • Heat-insulating wear-resistant quartz ceramic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A heat-insulating and wear-resistant quartz ceramic, the heat-insulating and wear-resistant quartz ceramic contains 6.3% by mass of nitrogen-doped zeolite powder and 16.3% of external additives, and the balance is quartz, and the nitrogen-doped zeolite powder contains nitrogen The element mass percentage is 4.5%.

[0020] Further, the preparation method of the nitrogen-doped zeolite powder is:

[0021] (1) Pretreatment: Disperse zeolite powder evenly in deionized water to prepare a zeolite powder dispersion with a mass fraction of 8.5%, soak at 70°C for 2 hours, then stir at 2000r / min for 20min, and then centrifuge 12min, centrifuge at a speed of 1200r / min, then carry out suction filtration, and dry to constant weight; evenly disperse the dried zeolite powder into an acidic cerium chloride solution, heat to 46°C, and stir at a speed of 250r / min for 40min , then stand still for 2 hours, then filter, wash with deionized water, and dry to constant weight to obtain pretrea...

Embodiment 2

[0030] A heat-insulating and wear-resistant quartz ceramic, the heat-insulating and wear-resistant quartz ceramic contains 7.0% by mass of nitrogen-doped zeolite powder and 16.5% of external additives, and the balance is quartz, and nitrogen in the nitrogen-doped zeolite powder The element mass percentage is 4.6%.

[0031] Further, the preparation method of the nitrogen-doped zeolite powder is:

[0032] (1) Pretreatment: Disperse zeolite powder evenly in deionized water to prepare a zeolite powder dispersion with a mass fraction of 8.5%, soak at 70°C for 2 hours, then stir at 2000r / min for 20min, and then centrifuge 12min, centrifuge at a speed of 1200r / min, then carry out suction filtration, and dry to constant weight; evenly disperse the dried zeolite powder into an acidic cerium chloride solution, heat to 46°C, and stir at a speed of 250r / min for 40min , then stand still for 2 hours, then filter, wash with deionized water, and dry to constant weight to obtain pretreated ze...

Embodiment 3

[0041] A heat-insulating and wear-resistant quartz ceramic, the heat-insulating and wear-resistant quartz ceramic contains 6.6% by mass of nitrogen-doped zeolite powder and 16.4% of external additives, and the balance is quartz, and nitrogen in the nitrogen-doped zeolite powder The element mass percentage is 4.55%.

[0042] Further, the preparation method of the nitrogen-doped zeolite powder is:

[0043] (1) Pretreatment: Disperse zeolite powder evenly in deionized water to prepare a zeolite powder dispersion with a mass fraction of 8.5%, soak at 70°C for 2 hours, then stir at 2000r / min for 20min, and then centrifuge 12min, centrifuge at a speed of 1200r / min, then carry out suction filtration, and dry to constant weight; evenly disperse the dried zeolite powder into an acidic cerium chloride solution, heat to 46°C, and stir at a speed of 250r / min for 40min , then stand still for 2 hours, then filter, wash with deionized water, and dry to constant weight to obtain pretreated z...

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Abstract

The invention discloses heat-insulating wear-resistant quartz ceramic, and relates to the technical field of new materials. The heat-insulating wear-resistant quartz ceramic is prepared from 6.3-7.0%of nitrogen-doped zeolite powder and 16.3-16.5% of an external additive according to the mass of the heat-insulating wear-resistant quartz ceramic, and the balance of quartz, wherein the mass percentage of a nitrogen element in the nitrogen-doped zeolite powder is 4.5-4.6%. The prepared heat-insulating wear-resistant quartz ceramic is excellent in performance; the usage amounts of the components of the prepared heat-insulating wear-resistant quartz ceramic are limited, and the acceleration action of the nitrogen-doped zeolite powder is achieved, thus enabling silicon dioxide to form a skeletonin a preform body; by using the nitrogen-doped zeolite powder as a connection bridge point, a fire resistance degree and a sintering range are increased through magnesium aluminate spinel, thereby reducing a sintering temperature of the preform body, and improving the heat stability and the mechanical strength of the prepared ceramic.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a heat-insulating and wear-resistant quartz ceramic. Background technique [0002] Quartz ceramics, also known as fused quartz ceramics, quartz glass ceramics, sintered quartz glass products, sintered fused quartz products, are products prepared by using fused quartz as raw material and undergoing a series of ceramic processes such as crushing, forming, and firing. [0003] Quartz ceramics have excellent characteristics such as low cost, high softening temperature under high temperature load, small thermal expansion coefficient, good thermal stability, good chemical corrosion resistance, and high dielectric properties, and can be used in many fields. [0004] Existing quartz ceramics have general heat insulation, poor wear resistance, and are easy to burst, resulting in increased use costs. Contents of the invention [0005] The object of the present inventio...

Claims

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Application Information

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IPC IPC(8): C04B35/14C04B35/622C04B35/626
CPCC04B35/14C04B35/622C04B35/62605C04B2235/3208C04B2235/3463C04B2235/3481C04B2235/96C04B2235/9607
Inventor 郭艳
Owner 徐州华焰特种陶瓷有限公司
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