A kind of high-hardness transparent glass-ceramics and its preparation method

A glass-ceramic, high-hardness technology, applied in the field of new materials, can solve the problems of poor visible light transmittance, low glass transparency, and limited application, and achieve high visible transmittance, lower nucleation barrier, and lower activation energy. Effect

Active Publication Date: 2017-03-08
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent "Application No. 201310692264.3" introduces a glass-ceramic, which is composed of silicon dioxide, magnesium oxide, aluminum oxide, sodium oxide and the rest of impurities, although a glass-ceramic with a Mohs hardness of 7 has been produced , but the glass has low transparency and poor visible light transmission, which greatly limits its application in the optical field

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  • A kind of high-hardness transparent glass-ceramics and its preparation method

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Embodiment 1

[0019] A high-hardness transparent glass-ceramic, its composition weight percentage is: silicon dioxide 60%, aluminum oxide 18%, magnesium oxide 8%, diyttrium oxide 0.2%, zirconium dioxide 6%, zinc dioxide 5% %, antimony trioxide 0.55%, diboron trioxide 2%, phosphorus pentoxide 0.25%.

[0020] The preparation method of the above-mentioned high-hardness transparent glass-ceramic comprises the following steps:

[0021] (1) According to the following formula by weight percentage, the raw materials are weighed and mixed evenly, 60% of silicon dioxide, 18% of aluminum oxide, 8% of magnesium oxide, 0.2% of diyttrium oxide, 6% of zirconium dioxide, and 5% of zinc dioxide , antimony trioxide 0.55%, diboron trioxide 2%, phosphorus pentoxide 0.25%.

[0022] (2) Grind the components of the above-mentioned glass-ceramics evenly to make a mixture, put it in a crucible and heat it up to 1650-1700°C for melting, keep it warm for 2-4 hours, and fully melt and clarify.

[0023] (3) Pour the ...

Embodiment 2

[0027] A high-hardness transparent glass-ceramic, its composition weight percentage is: 55% of silicon dioxide, 20% of aluminum oxide, 10% of magnesium oxide, 0.15% of diyttrium oxide, 6.35% of zirconium dioxide, 6% of zinc dioxide %, antimony trioxide 0.5%, diboron trioxide 1.8%, phosphorus pentoxide 0.2%.

[0028] The preparation method of the above-mentioned high-hardness transparent glass-ceramic comprises the following steps:

[0029] (1) According to the following formula by weight percentage, the raw materials are weighed and mixed evenly, 55% of silicon dioxide, 20% of aluminum oxide, 10% of magnesium oxide, 0.15% of diyttrium oxide, 6.35% of zirconium dioxide, and 6% of zinc dioxide , antimony trioxide 0.5%, boron trioxide 1.8%, phosphorus pentoxide 0.2%.

[0030] (2) Grind the components of the above-mentioned glass-ceramics evenly to make a mixture, put it in a crucible and heat it up to 1650-1700°C for melting, keep it warm for 2-4 hours, and fully melt and clarif...

Embodiment 3

[0035] A high-hardness transparent glass-ceramic, its composition weight percentage is: silicon dioxide 58%, aluminum oxide 20%, magnesium oxide 8%, diyttrium oxide 0.17%, zirconium dioxide 6.15%, zinc dioxide 5% %, antimony trioxide 0.5%, diboron trioxide 2%, phosphorus pentoxide 0.18%.

[0036] The preparation method of the above-mentioned high-hardness transparent glass-ceramic comprises the following steps:

[0037] (1) According to the following formula by weight percentage, the raw materials are weighed and mixed evenly, 58% of silicon dioxide, 20% of aluminum oxide, 8% of magnesium oxide, 0.17% of diyttrium oxide, 6.15% of zirconium dioxide, and 5% of zinc dioxide , antimony trioxide 0.5%, boron trioxide 2%, phosphorus pentoxide 0.18%.

[0038] (2) Grind the components of the above-mentioned glass-ceramics evenly to make a mixture, put it in a crucible and heat it up to 1650-1700°C for melting, keep it warm for 2-4 hours, and fully melt and clarify.

[0039] (3) Pour ...

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Abstract

The invention discloses high-hardness transparent microcrystal glass. The high-hardness transparent microcrystal glass is prepared from the following components in percentage by weight: 50%-69.6% of silicon dioxide, 15%-25% of aluminum oxide, 5-10% of magnesium oxide, 0.1%-0.3% of yttrium oxide, 6%-7% of zirconium dioxide, 3%-8% of zinc oxide, 0.2%-0.8% of antimony trioxide, 1%-3% of diboron trioxide and 0.1%-0.4% of phosphorus pentoxide. The invention further discloses a preparation method of the high-hardness transparent microcrystal glass. The microcrystal glass prepared by the preparation method disclosed by the invention has the characteristics of being colorless and transparent, high in hardness, excellent in mechanical performance, good in visible light permeability, and the like.

Description

technical field [0001] The invention belongs to the field of new materials, in particular to a high-hardness transparent glass-ceramic and a preparation method thereof. Background technique [0002] Glass-ceramic, also known as glass-ceramic, is a polycrystalline solid formed by crystallizing glass under an appropriate heat treatment system. It is a material with uniform distribution of microcrystals and glass phases. It combines glass, ceramics and natural stone Superior properties, such as high mechanical strength, corrosion resistance, wear resistance, good thermal stability, etc., can be used for building curtain walls or interior decoration. It can also be used as mechanical structural materials, electronic insulation materials, chemical anti-corrosion and biomedical materials. It is a new high-grade building decoration material in the world today, so it is widely used in aerospace, electronics, machinery, biomedicine and other fields. [0003] The glass-ceramics curre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/00C03C1/00
CPCC03C1/00C03C10/0045
Inventor 陶海征王鹏鹏赵修建
Owner WUHAN UNIV OF TECH
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