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Method for preparing high-toughness microcrystalline glass

A glass-ceramic and high-toughness technology, which is applied in the field of preparation of high-toughness glass-ceramic, can solve the problems of high brittleness and high surface porosity of glass-ceramic, and achieves enhancement of glass-ceramic, improvement of toughness and processing performance, cracks and cracks. developmental inhibitory effect

Inactive Publication Date: 2018-06-15
常州万博金属构件厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is to provide a preparation method of high-toughness glass-ceramics for the defects of high porosity and high brittleness on the surface of glass-ceramics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0026]Collect 700g of secondary sedimentation tank activated sludge from the domestic sewage plant, place it in a quartz reactor with an air inlet, an air outlet and a condensing device, and treat the quartz reactor with nitrogen at a ventilation rate of 200mL / min for 10min. The reactor was transferred to a microwave processor and treated with microwave pyrolysis at a power of 1.0kW for 2 hours, and the microwave pyrolysis product of the sludge in the quartz reactor was taken out; the microwave pyrolysis product of the sludge was placed in a vacuum oven with a set temperature of 80°C In the box, dry for 4 hours, transfer to a mortar and grind for 30 minutes to obtain sludge pyrolysis powder, mix the sludge pyrolysis powder and fly ash at a mass ratio of 3:1, and place them in a planetary ball mill for ball milling to control the pellets. Ratio of 15:1, ball milling for 1.0h, to obtain the basic glass powder; put 60mL of absolute ethanol in a three-necked flask with a stirrer an...

example 2

[0028] Collect 750g of secondary sedimentation tank activated sludge from the domestic sewage plant, place it in a quartz reactor with an air inlet, an air outlet and a condensing device, and treat the quartz reactor with nitrogen at a ventilation rate of 250mL / min for 11min, and the quartz The reactor was transferred to a microwave processor and treated with microwave pyrolysis at a power of 1.2kW for 2.5 hours, and the microwave pyrolysis product of the sludge in the quartz reactor was taken out; the microwave pyrolysis product of the sludge was placed in a vacuum with a set temperature of 85°C In a drying box, dry for 4.5 hours, transfer to a mortar and grind for 35 minutes to obtain sludge pyrolysis powder, mix the sludge pyrolysis powder and fly ash at a mass ratio of 3:1, and place them in a planetary ball mill for ball milling. The ball-to-material ratio was 15:1, and ball milled for 1.2h to obtain the basic glass powder; put 65mL of absolute ethanol in a three-necked fl...

example 3

[0030] Collect 800g of activated sludge from the secondary sedimentation tank from the domestic sewage plant, place it in a quartz reactor with an air inlet, an air outlet and a condensation device, and treat the quartz reactor with nitrogen at a ventilation rate of 300mL / min for 12min, and the quartz The reactor was transferred to a microwave processor and treated with microwave pyrolysis at a power of 1.5kW for 3 hours, and the microwave pyrolysis product of the sludge in the quartz reactor was taken out; the microwave pyrolysis product of the sludge was placed in a vacuum oven with a set temperature of 90°C In the box, dry for 5 hours, transfer to a mortar and grind for 40 minutes to obtain sludge pyrolysis powder, mix the sludge pyrolysis powder and fly ash at a mass ratio of 3:1, and place them in a planetary ball mill for ball milling to control the pellets. Ratio of 15:1, ball milling for 1.5h, to obtain basic glass powder; put 70mL of absolute ethanol in a three-necked ...

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Abstract

The invention discloses a method for preparing high-toughness microcrystalline glass and belongs to the technical field of preparation of architectural ceramics. According to the method, sludge pyrolyzed powder and fly ash are mixed to obtain a basic glass powder material, sodium oxide, potassium oxide and the like, which are rich in the basic glass powder material, have a thickening effect on molten glass, a titanium dioxide coating on the surface of basic glass is a surface active substance, the surface tension can be lowered to generate thinner bubble walls, and thus, the porosity of the microcrystalline glass is lowered. According to the method, a sintering temperature of coated glass during sintering is above a melting temperature of the basic glass, generated liquid of the basic glass is sintered, and thus, a glass phase has an obvious network structure during liquid-phase sintering; and the glass phase accounts for a relatively high proportion in the microcrystalline glass and is continuously dispersed in the microcrystalline glass, the microcrystalline glass cracks in case of an impact load, the network structure of the glass phase will fork cracks, the crack scattering stress is increased, and the development of the cracks is inhibited, so that the toughness and processability of the microcrystalline glass are improved, and the application prospect is broad.

Description

technical field [0001] The invention discloses a method for preparing high-toughness glass-ceramics, which belongs to the technical field of building ceramics preparation. Background technique [0002] Microcrystalline glass, also known as microcrystalline jade or ceramic glass, is a composite glass, a new type of building material just developed in foreign countries, and its scientific name is glass crystal. Glass-ceramics looks very different from our common glass. It has the dual characteristics of glass and ceramics. The atomic arrangement inside ordinary glass is irregular, which is one of the reasons why glass is fragile. Glass-ceramics, like ceramics, is composed of crystals, that is to say, its atomic arrangement is regular. Therefore, glass-ceramic is brighter than ceramics and tougher than glass. Glass-ceramic preparation methods include bulk crystallization method, sintering method, sol-gel method, etc. At present, the methods that have been industrialized in Ch...

Claims

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Application Information

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IPC IPC(8): C03C10/00
CPCC03C10/0063
Inventor 谭春容何少雄陈可
Owner 常州万博金属构件厂
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