How much do you know about the use of silicon carbide ceramics?
Silicon carbide ceramics is a high-quality ceramic material with high strength, high thermal conductivity, good shock resistance, oxidation resistance, wear resistance, corrosion resistance, and other high-temperature properties. It is widely used in metallurgy, energy, and chemical industries. The following small series introduces the use of silicon carbide ceramics. The use of silicon carbide ceramics 1, chemical, metallurgy Silicon carbide has high resistance to hot metal, slag, and alkali...
Mechanical properties of alumina-based metal (intermetallic compound) composite ceramics
Various toughening mechanisms, summarizing the nanocomposite and ceramic grain boundary stress design to solve the problem of ceramic brittleness Alumina ceramics have a series of excellent properties such as high temperature resistance, high wear resistance, corrosion resistance and oxidation resistance, and can withstand metallic materials and polymers The harsh working environment in which the material is incompetent is one of the most widely used ceramic materials currently produced....
Zirconium dioxide and its multiple phase silicon nitride ceramics
Transformation temperature Coefficient of thermal expansion Lattice constant Crystalline monoclinic tetragonal equiaxed ZK) 2 Monoclinic and tetragonal crystallographic transitions accompanied by volume changes, see. When heated, the monoclinic crystals transform into tetragonal crystals with a volume shrinkage of 3.25%; upon cooling, the tetragonal crystals transform into monoclinic crystals with 5% volume expansion. ZrO2 monoclinic and tetragonal phase transitions have the following...
Types and characteristics of zirconia ceramics
Pure ZrO2 is white, yellow or gray when containing impurities, generally containing HfO2, not easy to separate. The world's proven zirconium resources are about 19 million tons, and zirconia is usually made from zirconium ore. There are three kinds of crystalline forms of pure ZrO2 under normal pressure: monoclinic zirconia (m-ZrO2), tetragonal (zitragonal) zirconia (t-ZrO2) and cubic (cubic) zirconia (c-ZrO2). The three crystal forms exist in different temperature ranges and can be converted...
Application of Nano-alumina in Fine Ceramics
[China Aluminum Network] 1. Functions of nano-alumina (VK-L05C) From the perspective of structural ceramics, nano-alumina fine ceramics can be divided into wear-resistant parts, structural parts, refractory parts, carriers, acid-resistant parts, and insulating parts. and many more. From a functional point of view, nano-alumina has many functions such as electrical, optical, chemical, biological, sound absorption, thermal, and mechanical properties (see Table 1). Table 1 Functions of...
Zirconia Ceramic Parts
Zirconia ceramics as a white, yellow or gray containing impurities, generally contain HfO2, easily separated. There are three crystal states of pure ZrO2 under normal pressure. The production of zirconia ceramics requires the preparation of powders with high purity, good dispersion, ultrafine particles and narrow particle size distribution. There are many preparation methods for zirconia ultrafine powders. The purification of zirconia mainly includes chlorination and thermal decomposition, and...
Method for toughening zirconia ceramics
Zirconium oxide is a special material. The method of toughening zirconia, as you mentioned, can also be achieved mainly by the phase transformation of zirconia! There is a product about the development of zirconia, and the products made are mainly used. In zirconia ceramics and refractory products. Pure zirconia is a white solid that appears gray or yellowish when it contains impurities, and can be displayed in a variety of other colors by adding a developer. Pure zirconia has a molecular...
What are the differences between aluminum nitride ceramic substrates and alumina ceramics?
At present, ceramic substrates commonly used in the thermal ceramics industry mainly include aluminum nitride ceramic substrates and alumina ceramic substrates. So what is aluminum nitride ceramics, what is aluminum oxide ceramics, and what are the differences between the two ceramic substrates, the following is a summary of Jiayi Fengtai Xiaobian: First, we analyze the aluminum nitride ceramic substrate: 1. Aluminum nitride ceramics English: Aluminium NitrideCeramic is a ceramic with aluminum...
Basic introduction of alumina ceramics
Alumina ceramics are a material based on alumina (AL2O3) for thick film integrated circuits. Alumina ceramics have good conductivity, mechanical strength and high temperature resistance. It should be noted that ultrasonic cleaning is required. Alumina ceramics are a widely used ceramic. Because of its superior performance, it has become more and more widely used in modern society, satisfying the needs of daily use and special performance. The technology of alumina ceramics is now maturing....
Why use microcrystalline alumina ceramics for ceramic grinding bodies
Aluminum oxide ceramic is a widely used ceramic, which is based on alumina (Al2O3) as a main component alumina ceramic material having good conductivity, mechanical strength and temperature resistance. The content of Al2O3 in high-purity alumina ceramics is above 99.9%, and the sintering temperature is as high as 1650 °C~1990 °C. Ordinary alumina ceramics are classified into 99 porcelain, 95 porcelain, 90 porcelain, 85 porcelain, etc. according to the Al2O3 content. Sometimes the Al2O3 content...
Superplastic alumina ceramics
[China Aluminum Industry Network] Alumina ceramics are widely used as abrasives, cutting materials, and high temperature materials. They are also used for various mechanical parts because they have good abrasion resistance, mechanical strength, hardness, and wear resistance. However, due to the lack of plasticity, the original alumina ceramic cannot be processed like a metal material, and it can be said to be a material that is difficult to process. Recently, the Institute of Metal Materials of...
Influence of Sintering Temperature on Trap Distribution of Alumina Ceramics
Affects the distribution of traps in alumina ceramic media. Microstructural analysis shows that different sintering temperatures can lead to different amounts of structural defects in the ceramic media, resulting in different distributions of their traps: ceramics; alumina; trap distribution; sintering temperature. The flashover voltage of insulators in vacuum is lower than that in vacuum. The insulating strength of the vacuum and insulator body is an important factor that restricts the...
What are the alumina ceramics used for?
[China Aluminum Network] Alumina ceramics is a type of material that uses aluminum oxide (AL2O3) as the main material for thick film integrated circuits. Alumina ceramics have better conductivity, mechanical strength and high temperature resistance. It should be noted that ultrasonic washing is required. Alumina ceramic is a widely used ceramic. Because of the superior performance of alumina ceramics, the application in modern society has become more and more extensive, satisfying the needs of...
