High temperature resistant ceramic materials are used in a device, equipment, or structure to withstand static or dynamic mechanical loads at high temperatures.It has high melting point, high temperature strength, low temperature creep property, good shock resistance, corrosion resistance, oxidation resistance and structural stability.High temperature structural ceramics include high temperature oxides and high temperature non-oxides (or refractory compounds).
As structural materials, metal has been widely used.However, due to the corrosion of metal, it is not resistant to oxidation at high temperature, so it is not suitable for use at high temperature.
The appearance of high temperature structural materials makes up for the weakness of metal materials.In the material, there is a class of structural materials mainly made of its strength, hardness, toughness and other mechanical properties.The appearance of high temperature structural materials makes up for the weakness of metal materials.
This kind of material has can withstand high temperature, not afraid of oxidation, acid and alkali corrosion resistance, hardness, wear resistance, density and other advantages, as high temperature structural materials, very suitable.
High temperature resistant ceramic material is an important component, sometimes as a high temperature refractory components.According to the main chemical composition of materials, it can be divided into high-temperature oxide ceramics (such as Al2O3, ZrO, MgO, CaO, ThO2, Cr2O3, SiO2, BeO, 3Al2O3·2SiO2, etc.), carbide ceramics, boride ceramics, nitride ceramics and silicide ceramics, etc.Usually has high temperature resistance, high strength, high hardness, good electrical properties, thermal properties and chemical stability.High temperature oxide ceramics are usually sintered in oxidation atmosphere, vacuum and so on.
High temperature non-oxide ceramics are usually sintered under hot pressure or special atmosphere (such as argon and nitrogen).Methods such as hot isostatic pressure and microwave sintering are also used.The thin film can also be prepared by vapor deposition.It can be used as high temperature structural material for aerospace, atomic energy, electronic technology, machinery, chemical industry, metallurgy and many other departments.
Ceramics subjected to static or dynamic mechanical loads.It has high melting point, high temperature strength, low temperature creep property, good shock resistance, corrosion resistance, oxidation resistance and structural stability.High temperature structural ceramics include high temperature oxides and high temperature non-oxides (or refractory compounds).As structural materials, metal has been widely used.However, due to the corrosion of metal, it is not resistant to oxidation at high temperature, so it is not suitable for use at high temperature.The appearance of high temperature structural materials makes up for the weakness of metal materials.In the material, there is a class of structural materials mainly made of its strength, hardness, toughness and other mechanical properties.The appearance of high temperature structural materials makes up for the weakness of metal materials.This kind of material has can withstand high temperature, not afraid of oxidation, acid and alkali corrosion resistance, hardness, wear resistance, density and other advantages, as high temperature structural materials, very suitable.
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