language
MATERIALS CENTER
MATERIALS CENTER

Materials

NATERIAL

RBSIC

Material Characteristics

Using different particle size silicon carbide powder as raw material, introducing inorganic or organic carbon source, combined with forming methods such as slip casting, gel casting, isostatic pressing, extrusion, to produce SIC + C substrate, and degreasing, high temperature reactive silicone seepage sintering under vacuum atmosphere (temperature is usually in the range of 1600-1700 °C), to get the combination of primary and secondary silicon carbide silicon carbide material, the material usually contains a certain percentage of free silicon, usually within 15%, with a density of 3.03 or more. In addition, the purity of the material can be controlled according to the actual application conditions of the material to adapt to different application environments.

 

Performance Characteristics

  • CORESIC® RB Silicon Carbide ceramics have excellent bending strength (typically >280 MPa, three times that of materials such as quartz, resulting in higher load carrying capacity).
  • CORESIC® RB silicon carbide ceramics can be used for long periods of time even at a maximum service temperature of 1350°C, preventing thermal deformation and softening of components and assemblies.
  • Excellent oxidation resistance
  • Good chemical stability, acid and alkali resistance, small etching rate in acid and alkali cleaning
  • CORESIC® RB Silicon Carbide ceramics are extremely chemically stable during etch cleaning and are resistant to attack by HF or HF+HNO3.
  • CORESIC® RB SiC ceramics have a low coefficient of thermal expansion, similar to that of silicon nitride and polysilicon.
  • CORESIC® RB SiC ceramics have good wear resistance and superb hardness (> 2500 Gpa)
  • Good thermal conductivity (room temperature thermal conductivity typically > 160 W/m ﹒ K)
  • has conductive workable properties (resistivity < 100 Ω.cm)