Density: 3.1-3.3 g/cm³.
Flexural Strength: 600-800 MPa.
Fracture Toughness: 6.5-8.5 MPa·m¹/².
Thermal Conductivity: 80-120 W/(m·K).
Coefficient of Thermal Expansion: 3.0×10⁻⁶/°C.
Operating Temperature: ≤1600℃.
Hardness: HV10 ≥ 1500.
Product Introduction of Silicon Nitride Porous Ceramic Valve Plates:
Silicon nitride porous ceramic valve plates combine the advantages of both silicon nitride ceramics and porous materials, exhibiting the following significant characteristics:
1.Mechanical Properties: Bending strength of 600-800 MPa, fracture toughness of 6.5-8.5 MPa·m¹/², hardness HV10 ≥ 1500, and excellent wear resistance.
2.Thermal Properties: Operating temperature up to 1600℃, thermal conductivity of 80-120 W/(m·K), thermal expansion coefficient of 3.0×10⁻⁶/°C, and excellent thermal shock resistance.
3.Chemical Stability: Extremely strong corrosion resistance to most acids, bases, and molten metals (except hydrofluoric acid).
4.Porous Characteristics: High porosity, large specific surface area, good permeability, and density of 3.1-3.3 g/cm³.
Application Fields
Silicon nitride porous ceramic valve plates are widely used in the following fields:
1.Chemical industry: Corrosion-resistant pump bodies, ball valves, filters, and reactor linings.
2.Machinery: High-temperature bearings, sealing rings, and wear-resistant components.
3.Environmental protection: Gas-liquid fluid filters and catalyst carriers.
4.Electronics: High-frequency circuit substrates and heat dissipation materials.
5.Aerospace: Engine components and thermal protection materials.
Supports custom specifications.
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