Company News

Industry trends

24

2024

/

10

Preparation and Application of Silicon Carbide Ceramics

With the progress of science and technology in the 21st century, the development of social productivity today focuses on information, energy, materials, bioengineering and other aspects.

23

2024

/

10

Effect of MgO on Transparent Alumina Ceramics

Because of its high temperature resistance, corrosion resistance, high strength, high toughness and good light transmittance, and because of its low preparation cost, transparent alumina ceramics are widely used in high-voltage sodium lamps in the lighting field, ceramic discharge tubes for ceramic metal halide lamps, integrated circuit substrates in the electronic industry, high-frequency insulating materials, infrared detection windows and other fields. Transparent alumina ceramic is a kind of polycrystalline inorganic material, which is composed of a variety of microstructures, including grains, grain boundaries, second phases, pores, etc. Due to the difference of their respective refractive index (theoretical transmittance is 86%), the light transmittance of the material is low.

16

2024

/

10

The Secret of "Wear Resistance" of Alumina Ceramics

"Friction" is a quite common phenomenon, which is accompanied by human activities all the time, such as walking requires friction, driving of cars requires friction, and running of trains also requires friction. The physical phenomenon caused by this relative movement seems to be very friendly to human beings, but in fact, it often shows a ferocious side.

14

2024

/

10

Principle and Method of Ceramic Sintering Process

Ceramic sintering is a general term for densification process and phenomenon of green body at high temperature. With the increase of temperature, there are powder particles with larger specific surface area and higher surface energy in the ceramic body, which try to change in the direction of reducing the surface energy, continuously migrate the material, move the grain boundary, gradually eliminate the pores, and produce shrinkage, so that the body becomes a dense ceramic body with a certain strength.

12

2024

/

10

What is nanocrystalline ceramics

Nanocrystalline ceramics is a new material with excellent mechanical and chemical properties. It can be used as wear-resistant structural materials in harsh environments such as high temperature, corrosion, and no lubrication, such as ceramic bearings, mechanical seals, textile ceramics, abrasives, pipes, valves, wear-resistant linings, and chemical fillers. It can improve the reliability and technical content of traditional structural ceramics, and promote machinery manufacturing, chemical industry, metallurgy The technological progress of energy and other related industries is of positive significance. At the same time, nano microcrystalline ceramics are also an excellent electronic structural ceramics, which can replace talc ceramics and alumina ceramics as various insulators, tube sockets, resistance substrates and sealing shells for electronic devices.

10

2024

/

10

Ultra high temperature ceramic materials for the future

Ultrahigh Temperature Ceramics (UHTCs for short) was first developed by the U.S. Air Force. It mainly refers to a special material that can maintain chemical stability in high temperature environment (above 2000 ℃) and reaction atmosphere (such as atomic oxygen environment), usually including some high melting point transition metal compounds such as boride, carbide and oxide, The multi-component composite ceramic materials composed of the above compounds are collectively referred to as ultra-high temperature ceramic materials. Among these high melting point transition metal compounds, the melting point of TaC, ZrB2, HfB2, HfC, etc. exceeds 3000 ℃, which makes them have great application potential under extreme high temperature conditions.

06

2024

/

10

Common ceramic materials with high thermal conductivity

The heat transfer performance of ceramic materials has an extremely important influence on their expansion of application fields. To a certain extent, increasing the thermal conductivity of ceramic materials through specific methods will improve their ability of heat conduction, heat convection and heat radiation, and further expand their application fields. Ceramic materials with high thermal conductivity mainly include oxides, nitrides, carbides, borides, etc., such as polycrystalline diamond ceramics, AlN, BeO, Si3N4, SiC and other ceramic materials.

02

2024

/

10

Basics of Ceramic Humidity Sensor

The ceramic humidity sensor is composed of metal oxide ceramics, which can be divided into ion type and electronic type.

< 12 >

Yashang