Alumina ceramics are the most widely used and most productive ceramic materials in oxide ceramics. They are widely used in machinery, electronics and electricity, chemical engineering, medicine, architecture and other high-tech fields. Here briefly introduce the application of Al2O3 ceramics in the above six aspects. 1. Mechanical aspects The bending strength of Al2O3 ceramic sintered pr...

Gas pressure sintering: At present, large-size and complex-shaped ceramic products mainly rely on air pressure sintering technology. During the gas pressure sintering process, the applied gas pressure mainly suppresses the thermal decomposition of silicon or other nitride-based high-temperature materials. Because silicon nitride begins to decompose under normal pressure above 1750 degree...

At present, broadband semiconductor materials represented by silicon carbide (SiC), gallium nitride (GaN), zinc oxide (ZnO), diamond, and aluminum nitride (AlN) dominate the market with greater advantages, collectively referred to as third-generation semiconductor materials. The third-generation semiconductor materials have a wider band gap, higher breakdown electric field, thermal conductivi...

1. Nozzle application Nozzles are widely used in daily life, industrial production, agricultural production and military equipment. It is a very key component in equipment such as spraying, spraying, oil spraying, sandblasting, spraying, etc., and plays an important role. The nozzle materials range from stainless steel, plastic to silicon carbide, alumina, zirconia, boron nitride, PP (engineering ...

The theoretical melting point of magnesium oxide ceramics is as high as 2800 degree C , and it can work stably to 2400 degree C under the protection of oxidizing atmosphere or nitrogen. Moreover, it has strong resistance to alkali metal slag, has excellent thermochemical properties and stability against metals, and is especially suitable for some harsh occasions where ceramic materials such as alu...

1. Creep The structural parts of alumina ceramics will be subjected to external forces at high temperatures, and with time, plastic changes will continuously and slowly happen . This phenomenon can be called creep. When the structural parts of alumina ceramics creep, there is a great relationship between the stress and the temperature. In addition, when the stress increases or the temper...

Thermally conductive ceramic substrate is a material with high thermal conductivity. It is mainly made of alumina (alumina purity up to 96% or more). It has a pure white appearance and a hard texture. It is mainly used for heat transfer between power devices and radiators and electrical isolation. After it is tightly combined with power devices (such as power MOS tubes, power transistors...

Alumina ceramics is a ceramic product composed of α-Al2O3 as the main crystal, and its Al2O3 content is generally above 75%. People usually classify them according to the content of Al2O3 in the ingredients. Among them: the content of Al2O3 is about 75% is "75 alumina". Because the sintering temperature of Al2O3 is lower, the cost of 75 alumina is lower than other alumina ceramics, but becaus...

Alumina ceramics has low raw material cost and excellent performance. It is one of the most widely used ceramics in modern engineering technology. It can be seen from everyday kitchen utensils that are friendly to the people to high-end aerospace technology. Although they are all alumina ceramics, different applications still have different requirements-for example, in electronic ceramics, 99...

Magnesium oxide ceramics belong to the cubic crystal system, the melting point is about 2800 degree C, the theoretical density is 3.56～3.65g/cm^3, the Mohs hardness is 5-6, the specific volume resistance value is higher at high temperature, and it has good electrical insulation properties. Since magnesium oxide is volatile above 2300 degree C, its use of magnesium oxide ceramic products should be ...