What is a ceramic watch? Ceramic watches refer to the use of ceramic materials. Ceramic watches such as ceramic watches have been made from ceramics such as zirconia and cermet. Ceramic material is zirconia ceramic which is known as "ceramic steel" because of its phase transformation toughening property, the strength and toughness of known oxide ceramics, and the best comprehensive performance. How about the ceramic watch?

Cubic zirconia, also known as the Soviet stone, is rare in natural cubic zirconia, which is generally synthetic. Cubic zirconia was first developed by the Soviets, hence the name Soviet Stone. Also known as "cristobalite" or "USSR drill", it is a type of zirconia crystal. When zirconia is naturally present, most of it is monoclinic crystal, mainly in the presence of mineral "oblique zircon". Zirconium oxide, which exists in cubic single crystals, is extremely rare in nature, but is now often synthesized by artificial met

With the development of modern high-tech, advanced ceramics has gradually become an important part of new materials, and has become an important key material for the development of many high-tech fields. It has received great attention from various industrialized countries, and its development is also largely Affect the development and progress of other industries. Due to the specific fine structure of advanced ceramics and its high strength, high hardness, wear resistance, corrosion resistance, high temperature

In the past 20 years, whether it is the casting molding technology invented six or seventy years ago, atmospheric pressure sintering, or the injection sintering technology and spark plasma sintering technology that have just emerged in the first or second years, in order to meet the needs of application and research. Both have carried out large-scale technological upgrades, and relevant theoretical research has made great progress. The domestic advanced ceramic system has been continuously expanded, and the prepa

In addition to pressing the powder into a certain shape, the molding of the ceramic ceramics of special ceramics can also exert pressure to make the powder particles interact with each other and reduce the porosity, so that residual stress is generated at the contact points between the particles (storage of additional energy). This residual stress is a driving force for the migration and densification of the solid phase diffusion material during the sintering process. The powder is not compacted by cold forming. Even if sintered at a very high temperature, the den

Turbocharging is a technology that uses the exhaust gas generated by the operation of the internal combustion engine to drive the air compressor. Its main function is to increase the intake air volume of the engine, thereby increasing the power and torque of the engine. After the engine is mounted on the turbocharger, High power can increase by 40% or higher. Japanese auto companies took the lead in using metal turbochargers on various vehicles in 1978. However, one of the main drawbacks of metal turbochargers is that acceleration response is not enough to overcom

A large number of experiments have proved that the "ball" in the precision bearing operating at high speed (speed above 4×104r/min) is the weakest part in the bearing, and about 60%-70% of the high-speed bearing failure is caused by the steel ball. Produced by varying degrees of fatigue. Many domestic high-speed bearings have problems such as bearing steel balls with different degrees of fatigue damage. In order to improve the performance of high-speed bearings to prolong their fatigue life, the application of structural ceramics at home and abroad to manufacture

1 Smaller density, less centrifugal force - more conducive to high speed operation The density of silicon nitride ceramic material is about 3.2 × 103kg / m3, while the density of bearing steel is about 7.8 × 103kg / m3. The density of silicon nitride ceramics is only about 40% of the density of bearing steel. Therefore, when the rolling element is made of a silicon nitride ceramic, the bearing can effectively suppress an increase in the rolling element load caused by the centrifugal force at a high speed rotation. Therefore, the use of low-density silicon nitrid

The 96 alumina ceramic substrate is a ceramic widely used in structural ceramics. Because of its excellent electrical properties at high frequencies, it has low dielectric loss, large volume resistivity, high strength, high hardness, small coefficient of linear expansion, and good wear resistance and heat resistance. 1. High hardness It has been determined by the Shanghai Institute of Ceramics of the Chinese Academy of Sciences to have a Rockwell hardness of HRA80-90, which is

Catalyst carrier When used as a catalyst carrier, honeycomb ceramics are mainly used in automobile exhaust gas purification, boiler exhaust and denitrification (NOx), industrial exhaust gas deodorization, removal of toxic and harmful gases, and the like. The honeycomb ceramic catalyst carrier for automobile exhaust gas purification is mainly a cordierite honeycomb ceramic carrier coated with γ-Al 2 O 3 . 2. Refractory kiln

With the advancement and development of science and technology, many emerging industries have higher requirements for materials. The next thing to share with you is some knowledge about structural ceramic materials. Let's take a look at the four advantages and applications of structural ceramic materials! Four advantages of structural ceramic materials 1. S

Application of zirconia ceramics With the development of zirconia ceramics, major changes have taken place in its application. In the past, it was mainly used in fields such as refractory materials. Now it has been transformed into structural ceramics, bioceramics, and electronic functional ceramics, and its applications in high-tech fields such as aerospace, aviation, and nuclear industries are becoming increasingly active. a, refractory materials

What are the benefits of using ceramic substrates? At present, PCBs on the market can be divided into three types from the general category of materials: ordinary substrates, metal substrates, and ceramic substrates. The ordinary substrate is the motherboard in the motherboard mobile phone that we usually see in the computer. It is an ordinary epoxy substrate. The advantage is that it is easy to design and low in cost. So it is still used in a wide range. There

Ceramics are actually a general term for pottery and porcelain, and it is not a specific instrument. Humans invented pottery as early as 8000-2000 BC (the Neolithic Age). Traditional ceramic materials are clay, alumina, kaolin, and the like. Clay can be plasticized at room temperature, micro-dry can be carved, all dry can be ground; burned to 700 degrees can be made into pottery can be filled with water; burned to 1100 degrees is porcelain, can be completely water-free and resistant to high temperature and corrosion. The

1. Abrasion resistance: The Al2O3 content in the ceramic layer of ceramic composite steel pipe is more than 90%, the microhardness is HV1000-1800, so it has extremely high wear resistance, and its wear resistance is higher than that of quenched medium carbon steel. Double, better than tungsten carbide. 2. Corrosion-resistant ceramics are neutral materials with stable chemical properties, excellent corrosion resistance and acid resistance, resistance to various inorganic acids, organic acids, organic solvents, etc., and t

The medium-low temperature ceramic roller rod is mainly used in the low temperature zone of the kiln (<1000 °C), and is usually used more in the kiln whole line project, which can save the kiln construction cost to a certain extent; the medium temperature ceramic roller rod is mainly used for production. Glazed tiles and other low-temperature materials are suitable for use below 1200 °C. Due to their excellent thermal stability, they not only meet the needs of frequent cleaning of the roller, but also meet the demand for the strength of the roller in the prod

Cubic zirconia, also known as the Soviet stone, is rare in natural cubic zirconia, which is generally synthetic. Cubic zirconia was first developed by the Soviets, hence the name Soviet Stone. Also known as "cristobalite" or "USSR drill", it is a type of zirconia crystal. When zirconia is naturally present, most of it is monoclinic crystal, mainly in the presence of mineral "oblique zircon". Zirconium oxide, which exists in cubic single crystals, is extremely rare in nature, but is now often synthesized by artificial met

Zirconium products are rich in variety and various forms. The initial mineral form is zircon sand. After caustic soda and water washing, it can produce primary products such as zirconium silicate and zirconium oxychloride. Continued calcination, chlorination and reduction can also be made into two. Zirconium oxide, industrial grade sponge zirconium and other products; if the level of purification and separation technology reaches a certain level, it can be made into nuclear energy grade sponge zirconium. Zirconium is widely used in the fields of ceramics, refracto

In the 1970s, the famous German VITA company invented the In-Ceram technology, the strength of the all-ceramic crown was greatly improved, and it was quickly applied to the clinic. The realistic aesthetic effect of the all-ceramic crown shocked the dentists, and even the dentist was very It is difficult to tell which one is a denture. Now with the development of materials science and computer technology, CAD-CAM technology has been applied to the production of dentures. Currently, the zirconia computer all-ceramic tooth Cercon has become the most successful produc

For the manufacturing process of zirconia ceramics, forming is the first step and the most demanding step. It has a total of 8 molding methods, including hot die casting, cast molding, injection molding, etc., but more usually used in the form of injection molding and dry pressing. The grouting of zirconia ceramics is the process of physical dehydration of objects and the process of chemical coagulation, on the one hand to remove the moisture in the raw materials, and on the other hand to increase the ionic stren

Family Overview Aluminas (aluminum oxide, Al2O3) are the