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Glass ceramic composition and its preparation method and application

A glass-ceramic and glass technology, applied in the field of glass-ceramic composition and its preparation, can solve the problems of high technical requirements, low yield, low mechanical strength, etc. Effect

Active Publication Date: 2022-02-08
JILIN TEACHERS INST OF ENG & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the complex manufacturing process and high technical requirements of glass ceramic panels, the high-quality glass ceramic production process and control technology are basically monopolized by foreign countries, so the domestic glass ceramic production process has poor quality, low density, low mechanical strength, and low yield. And other issues

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  • Glass ceramic composition and its preparation method and application
  • Glass ceramic composition and its preparation method and application
  • Glass ceramic composition and its preparation method and application

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preparation example Construction

[0044] The present invention also provides a preparation method of the glass-ceramic composition, comprising the steps of:

[0045] After the mixture of raw materials is ground evenly, the mixture is melted and kept warm to form a mixed solution, which is cooled and molded to obtain a precursor glass;

[0046] crushing the precursor glass to obtain precursor glass powder;

[0047] mixing the precursor glass powder and a toughening agent, and sintering in an atmosphere of protective gas to obtain the glass ceramic;

[0048] Among them, the raw materials are selected according to the following parts by weight: 25-35 parts of glass, 3-8 parts of zinc oxide, 5-20 parts of sodium fluoride, 10-15 parts of strontium fluoride, 15-25 parts of magnesium oxide, 15-25 parts of potassium carbonate 25 parts, shell powder 35-50 parts, mica powder 10-30 parts; and

[0049] Wherein, the toughening agent parts by weight P TO Control is:

[0050]

[0051] In the formula, P S is the numbe...

Embodiment 1

[0071] The preparation method of the glass-ceramic composition provided by the invention comprises the following steps:

[0072] Step 1. Weigh raw materials according to the following parts by weight: 25 parts of glass, 3 parts of zinc oxide, 5 parts of sodium fluoride, 10 parts of strontium fluoride, 15 parts of magnesium oxide, 15 parts of potassium carbonate, 35 parts of shell powder, 10 parts of mica powder share;

[0073] Step 2, milling the weighed raw materials with a ball milling tank, the milling medium is absolute ethanol, drying and sieving after ball milling;

[0074] Step 3. Put the ball-milled raw materials into the flip mixer, then preheat the mixed raw materials at 350°C and melt for 2.5 hours, and quickly pour the evenly melted glass liquid into the metal mold preheated at 370°C , cooling to obtain a precursor glass, then ball milling the precursor glass, drying at 100°C for 24 hours, and passing through a 100-mesh sieve to obtain a precursor glass powder;

...

Embodiment 2

[0091] The preparation method of the glass-ceramic composition provided by the invention comprises the following steps:

[0092] Step 1. Weigh raw materials according to the following parts by weight: 35 parts of glass, 8 parts of zinc oxide, 20 parts of sodium fluoride, 15 parts of strontium fluoride, 25 parts of magnesium oxide, 25 parts of potassium carbonate, 50 parts of shell powder, 30 parts of mica powder share;

[0093] Step 2, milling the weighed raw materials with a ball milling tank, the milling medium is absolute ethanol, drying and sieving after ball milling;

[0094] Step 3. Put the ball-milled raw materials into the flip mixer, and then preheat the mixed raw materials at 550°C and melt them for 4 hours, and quickly pour the evenly melted glass liquid into the metal mold preheated at 550°C , cooling to obtain a precursor glass, then ball milling the precursor glass, drying at 100°C for 24 hours, and passing through a 100-mesh sieve to obtain a precursor glass po...

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Abstract

The invention discloses a glass ceramic composition, comprising: 25-35 parts of glass, 3-8 parts of zinc oxide, 5-20 parts of sodium fluoride, 10-15 parts of strontium fluoride, 15-25 parts of magnesium oxide, 15 parts of potassium carbonate ~25 parts, shell powder 35~50 parts, mica powder 10~30 parts. The invention discloses a method for preparing a glass-ceramic composition, which comprises the following steps: after the mixture of raw materials is ground uniformly, the mixture is melted and kept warm to form a mixed solution, and cooled and molded to obtain a precursor glass; the precursor glass is crushed, A precursor glass powder is obtained; the precursor glass powder is mixed with a toughening agent, and sintered in an atmosphere of protective gas to obtain the glass ceramics.

Description

technical field [0001] The invention relates to the technical field of ceramic preparation, in particular to a glass ceramic composition and a preparation method and application thereof. Background technique [0002] Glass-ceramics, also known as glass-ceramic, is a kind of composite material combined with crystal phase and glass made through high-temperature melting, molding, and heat treatment. It has superior properties such as high mechanical strength, adjustable thermal expansion, thermal shock resistance, chemical corrosion resistance, and low dielectric loss. [0003] Glass ceramics are widely used in machinery manufacturing, optics, electronics and microelectronics, aerospace, chemistry, industry, biomedicine and construction and other fields. Due to the complex manufacturing process and high technical requirements of glass ceramic panels, the high-quality glass ceramic production process and control technology are basically monopolized by foreign countries, so the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C6/06C03B19/06C03C10/00
CPCC03B19/063C03C1/002C03C10/0063
Inventor 朱晓薇宋琼王春燕刘刚刘晓秋宋阳成陈艳
Owner JILIN TEACHERS INST OF ENG & TECH
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