Silicon Nitride (Si3N4)

Silicon nitride-based ceramics are particularly useful in engineering applications due to their excellent combination of properties. The high hardness and abrasion resistance make it particularly suitable for tribological applications.
Usually used as a passivation layer for integrated circuits or micromechanical structures.
Compared with silicon dioxide, silicon nitride has significantly better resistance to water and sodium diffusion. Silicon nitride is also used as a dielectric material for microelectronic or photonic applications.

An amorphous phase trapped at a triple junction between Si3N4 grains (within a silicon nitride particulate-reinforced silicon carbide composite)

Product Name：Ceramic platform assembly
P/N：RT_VL-5050000001-1

Features:

Silicon nitride has excellent strength and creep resistance at high-temperatures, and is very resistant to thermal shock, making it an important high temperature structural ceramic
In a vacuum, applications are usually limited to below 1500 ° C because, above this temperature, the silicon nitride surface is unstable and decomposes into Si. In the air, silicon dioxide forms a layer on the surface of silicon nitride, a protective barrier that prevents further oxidation at temperatures up to about 1400 ° C.