What are structural ceramics?

Published Date: 2022-05-13 17:55:26 Views: 453

Basic introduction

Specialty ceramics as structural components. It is composed of single or composite oxides or non-oxides, such as Al2O3, ZrO2, SiC, Si3N4, or composites with each other, or combined with carbon fibers. For the manufacture of ceramic engines and special components that are wear-resistant and high-temperature resistant.

Application of Structural Ceramics

Structural ceramics mainly refer to a large class of new ceramic materials that exert their mechanical, thermal, chemical and other properties. They can serve in many harsh working environments, and thus become the key to the realization of many emerging science and technology.

Composite ceramics

Microwave ultra-high temperature sintered boron carbide ceramic armor material
The high-density silicon carbide/boron carbide composite ceramic has a bending strength of 500-600MPa even at a high temperature of about 1400°C. The company’s silicon carbide/boron carbide composite special ceramic materials produced by microwave-enhanced reactive infiltration process have the characteristics of small specific gravity, high hardness, high modulus, and impact resistance, and are used in a new generation of ceramic armor.

High temperature resistant, high strength, high toughness ceramics
Zirconia toughened ceramics have made significant progress in the research of structural ceramics. The toughened matrix materials, in addition to stable zirconia, are common oxide ceramics such as alumina, thorium oxide, spinel, mullite and so on. . Our company can use microwave high-temperature equipment to mass produce various oxide special structural ceramics at a lower cost.

High temperature and corrosion resistant transparent ceramics
The composition of modern electric light sources has high requirements on high temperature resistance, corrosion resistance and light transmittance of materials. The company uses microwave sintering to produce alumina and aluminum nitride transparent ceramic materials. The overall light transmittance and mechanical properties exceed traditional methods. produced products. It is used in various high temperature optical windows, probes and lamps.

Alumina ceramics
Alumina ceramic (artificial corundum) is an extremely promising high temperature structural material. It has a high melting point and can be used as advanced refractory materials, such as crucibles, high-temperature furnace tubes, etc. Taking advantage of the high hardness of alumina, it is possible to manufacture corundum ball mills used in the laboratory to grind materials that are less hard than it. Using high-purity raw materials and using advanced technology, alumina ceramics can also be made transparent, which can be used to make lamps for high-pressure sodium lamps.

Silicon Nitride Ceramics
Silicon nitride ceramic is also an important structural material. It is a superhard substance with low density, lubricity and wear resistance. Except for hydrofluoric acid, it does not react with other inorganic acids and is resistant to corrosion. Strong ability; can also resist oxidation at high temperature. And it can also resist the shock of cold and heat, it can be heated to more than 1000 degrees in the air, cooled sharply and then heated sharply, and it will not break. It is silicon nitride that has such good properties that people often use it to manufacture mechanical components such as bearings, turbine blades, mechanical seal rings, and permanent molds.