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A kind of high-performance environment-friendly composite building ceramic material and preparation method thereof

A high-performance technology for architectural ceramics, applied in the field of ceramic materials, can solve the problems of insufficient environmental protection and insufficient strength to meet the requirements, and achieve the effects of enhancing integrity, increasing strength, and reducing porosity

Active Publication Date: 2022-03-29
梅州市溪山陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Composite ceramic materials prepared by using zirconia and alumina in the prior art, for example, Chinese patent CN102351532A reports the preparation method of zirconia and alumina composite ceramics. The composite is synthesized by self-assembly technology, and the composite ceramic material is obtained through low-temperature heat treatment. The obtained composite material has a good microstructure and excellent performance, but there are still defects such as strength that cannot meet the requirements and environmental protection.

Method used

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  • A kind of high-performance environment-friendly composite building ceramic material and preparation method thereof
  • A kind of high-performance environment-friendly composite building ceramic material and preparation method thereof

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preparation example Construction

[0040] The preparation method of described ceramic material, comprises the steps:

[0041] The first step is to mix silicon powder, modified graphite powder, silicon carbide, metal Ni powder, silicon nitride powder and additives, add ceramic balls of the same quality to the mixture, put it into a ball mill for 20 hours, and the speed is 300r / min;

[0042] The second step is to put the ball-milled powder into the self-propagating reactor and vacuumize it. When the vacuum in the reactor reaches 10MPa, fill it with high-purity nitrogen to a pressure of 7.5MPa, turn on the electricity and ignite it, and carry out the self-propagating high-temperature synthesis reaction. , the reaction time is controlled at 4-5h;

[0043] The third step is to collect the composite powder after the reaction is over, add sintering aid to the composite powder, carry out ball milling for 10 hours to fully mix the materials, and then carry out vacuum hot-press sintering on the composite powder, and main...

Embodiment 1

[0045] A high-performance environment-friendly composite building ceramic material, made of the following raw materials in parts by weight: 60 parts of silicon powder, 3 parts of silicon carbide, 1 part of metal Ni powder, 9 parts of modified graphite powder, 30 parts of silicon nitride powder, additives 15 parts, 6 parts of sintering aid;

[0046] The ceramic material is made by the following steps:

[0047] The first step is to mix silicon powder, modified graphite powder, silicon carbide, metal Ni powder, silicon nitride powder and additives, add ceramic balls of the same quality to the mixture, put it into a ball mill for 20 hours, and the speed is 300r / min;

[0048] The second step is to put the ball-milled powder into the self-propagating reactor and vacuumize it. When the vacuum in the reactor reaches 10MPa, fill it with high-purity nitrogen to a pressure of 7.5MPa, turn on the electricity and ignite it, and carry out the self-propagating high-temperature synthesis reac...

Embodiment 2

[0051] A high-performance environment-friendly composite building ceramic material is made of the following raw materials in parts by weight: 65 parts of silicon powder, 3.5 parts of silicon carbide, 1.5 parts of metal Ni powder, 10 parts of modified graphite powder, 33 parts of silicon nitride powder, additives 18 parts, 7 parts of sintering aid;

[0052] The ceramic material is made by the following steps:

[0053] The first step is to mix silicon powder, modified graphite powder, silicon carbide, metal Ni powder, silicon nitride powder and additives, add ceramic balls of the same quality to the mixture, put it into a ball mill for 20 hours, and the speed is 300r / min;

[0054] The second step is to put the ball-milled powder into the self-propagating reactor and vacuumize it. When the vacuum in the reactor reaches 10MPa, fill it with high-purity nitrogen to a pressure of 7.5MPa, turn on the electricity and ignite it, and carry out the self-propagating high-temperature synthe...

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Abstract

The invention discloses a high-performance environment-friendly composite building ceramic material, which is made of the following raw materials in parts by weight: 60-70 parts of silicon powder, 3-4 parts of silicon carbide, 1-2 parts of metal Ni powder, and 9 parts of modified graphite powder -11 parts, 30-36 parts of silicon nitride powder, 15-20 parts of additives, 6-8 parts of sintering aids; the invention also discloses a preparation method of the ceramic material. The present invention adopts silicon powder and silicon nitride powder as the matrix of ceramic materials, through the doping of metal Ni powder and silicon carbide, it can play an effective toughening effect; through the modification of additives, not only the strength of the material can be improved, but also the strength of the material can be improved. Improve the integrity of ceramic materials; through the reinforcement of modified graphite powder, the mechanical properties and thermal conductivity of ceramic materials can be effectively improved; the obtained ceramic materials have high strength, good compactness, excellent comprehensive performance, and are environmentally friendly, non-toxic and tasteless , durable, suitable for use in the construction field and easy for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of ceramic materials, and in particular relates to a high-performance environment-friendly composite building ceramic material and a preparation method thereof. Background technique [0002] Ceramic materials have many advantages, such as elegant appearance, acid and alkali resistance, high temperature resistance, etc., and are widely used in many fields such as daily necessities, building materials, and mechanical processing. Alumina and zirconia are two common components in ceramic materials. Alumina has excellent properties such as low specific gravity and high temperature resistance. It is widely used in the field of ceramic materials, but its flexural strength and fracture toughness are low; zirconia has Good flexural strength, known as "ceramic steel", but its high specific gravity usually increases the weight of the finished product. The organic combination of zirconia and alumina has attracted more ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/515C04B35/65
CPCC04B35/515C04B35/65C04B28/08C04B2235/428C04B2235/3826C04B2235/405C04B2235/425C04B2235/3873C04B2235/3206C04B2235/3217C04B2235/3418C04B2235/36C04B2235/444C04B2235/3225C04B2235/96C04B2235/9607
Inventor 陈武亮
Owner 梅州市溪山陶瓷有限公司
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