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Good Thermal Shock Resistant Silicon nitride ceramic strip bar

Silicon nitride ceramic strip
Is a superhard material, which has lubricity and wear resistance. It does not react with other inorganic acids
it has strong corrosion resistance and high temperature oxidation resistance.
And it can also resist cold and heat shock, heat up to more than 1000 degrees in the air, rapid cooling and then rapid heating, and will not break.
  • 0310

Silicon nitride ceramic strip

Silicon nitride Strip is a kind of high-strength structural ceramics with broad development prospects. Compared with other ceramic materials, silicon nitride ceramics have high properties (such as high strength, high hardness, good thermal shock resistance, high fatigue toughness, high bending strength at room temperature, wear resistance, chemical corrosion resistance, good high-temperature stability, oxidation resistance, etc.), and have a small proportion.

Silicon Nitride Applications

  • Rotating ball bearings and rollers bearings

  • Cutting tools

  • Engine components: valves, rocker arm pads, seal faces

  • Induction heating coil supports

  • Turbine blades, vanes, buckets

  • Welding and brazing jigs

  • Heating element components

  • Crucibles

  • Metal tube forming rolls and dies

  • TIG / Plasma welding nozzles

  • Weld positioners

  • Precision shafts and axles in high-wear environments

  • Thermocouple sheaths and tubes

  • Semiconductor process equipment

Properties Of Silicon Nitride




Bending Strength750MPa
Compressive Strength3800MPa
Elastic Modulus290GPa
Fracture Toughness7MPa m1/2
Weber Coefficient15m
Vickers Hardness1700HV 0.5



Coefficient of Line

Thermal Expansion

210-6 K-1
Thermal Conductivity20W/mK
Thermal Shock Resistance (Put in Water)750ΔT℃
Max Working Temperature1300



Volume Resistance at 20℃>10Ωcm
Dielectric Strength10×106V/m
Dielectric Constant-εr

One MHZ Dielectric

Loss Angle at 20℃




Nitric Acid(60%)90℃1WT Loss mg/cm2/day
Sulphuric Acid(95%)95℃≒0.00
Caustic Soda(30%)80℃0.2

This data is the result of laboratory testing. Customers need to judge whether it can be used according to the specific environment.

For more customization details, Please contact us.

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