Silicon Nitride Ceramic Bushing

 

Features of Silicon Nitride Ceramic Bushing:

Silicon nitride ceramic bushing have high indoor temperature flexural strength, impact toughness value is at the upstream level.

For example, the compressive strength of pressed Si3N4 reaches more than 1000MPa, and the impact toughness is about 5MPa·m1/2. The characteristics of heavy calcined silicon nitride have also reached a similar level.Silicon Nitride Ceramic Bushing’s high-temperature compressive strength is very good.

High temperature calcination modifier produces laminated glass phase. Refrigeration laminated glass phase exists at the grain boundary. This must be solved by the product boundary engineering project. This is to maintain and give full play to this high temperature characteristic of silicon nitride ceramic bushing.

Otherwise, the grain boundary laminated glass phase softens at high temperature, resulting in grain boundary load. Slow crack expansion in the fatigue of high temperature compressive strength, stress relaxation, and static data often has considerable harm on grain boundary load rate.

The total number, and the strength of the associated silicon nitride bushing are high. Hv=18GPa~21Gpa, HRA=91~93, only a few superhard materials such as diamond, cubic meter BN, B4C and so on have small frictional resistance (O.1), and self-wettability. This is similar to the metal surface layer of the oil.

Ceramic materials used in automobile engine energy-saving and emission-reduction vehicles are made from high-purity ultra-fine oxides, nitrides and other raw materials.

These materials possess high strength, high heat resistance, corrosion resistance, high hardness, and high wear resistance. They also have a small density, small deformation, thermal shock resistance, and a series of advantages. Structural ceramics, compared with metals, belong to structural ceramics. Their mass can reach half of iron, thus providing a significant energy-saving effect. Weclome inquiry.