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Silicon Carbide

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Silicon Carbides (SiC) exhibit characteristically high hardness, wear resistance, corrosion resistance, and strength — even at high temperatures. CAPA has engineered a variety of silicon carbide processes and compositions which deliver properties and features optimized for specific application requirements including:

Silicon carbide is ideal for high-stress applications which require great mechanical strength along with excellent corrosion and wear resistance.

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CAPA-RBSiC CAPA-SSiC
UNITS REACTION BONDED
SILICON CARBIDE 		SINTERED SILICON CARBIDE
Density G/CM3 3.2 3.2
Water Absorption 0 0
Color BLACK BLACK
Main Characteristics
  • Hardness
  • Variable electrical resistivity
  • Mechanical strength
  • Light Weight
Mechanical Characteristics Vicker Hardness (Load 500g) GPa 22 23
Flexural Strength MOR(20℃) MPa 450 540
Compressive Strength MPa - -
Young's Modulus of Elasticity GPa 430 440
Possion Ratio - 0.16 0.17
Fracture Toughness Mpa・m1/2 4 - 5 4 - 5
Thermal Characteristics Coefficient of Linear Thermal Expansion 40-800℃ 1x10-6 /℃ 3.7 - 4.4 3.7 - 4.4
Thermal Conductivity 20℃ W/(m.K) 60 140
Specific Heat J/(g.K) 0.67 0.67
Heat Shock Resistance(Put in water) ℃ - -
Electrical Characteristics Dielectric Strength kV/mm - -
Volume Resistivity 20℃ Ω.cm - 105
300℃ - 104
*The values are typical material properties and may vary according to products configuration and manufacturing process.
CAPA-Y-ZrO
UNITS YTTRIA-STABLIZED ZIRCONIA
Density G/CM3 6
Water Absorption 0
Color White
Main Characteristics
  • Toughness
  • Mechanical Strength
  • High Heat Resistance
  • Corrosion Resistance
Mechanical Characteristics Vicker Hardness (Load 500g) GPa 12.7
Flexural Strength MOR(20℃) MPa 1000
Compressive Strength MPa 5000
Young's Modulus of Elasticity GPa 220
Possion Ratio - 0.31
Fracture Toughness Mpa・m1/2 4 - 5
Thermal Characteristics Coefficient of Linear Thermal Expansion 40-800℃ 1x10-6 /℃ 11.0
Thermal Conductivity 20℃ W/(m.K) 3
Specific Heat J/(g.K) 0.46
Heat Shock Resistance(Put in water) ℃ -
Electrical Characteristics Dielectric Strength kV/mm 11.0
Volume Resistivity 20℃ Ω.cm 1013
300℃ 106
*The values are typical material properties and may vary according to products configuration and manufacturing process.
CAPA-Mg-ZrO
UNITS MAGNESIUM-STABLIZED ZIRCONIA
Density G/CM3 5.8
Water Absorption 0
Color Beige
Main Characteristics

Mechanical Characteristics Vicker Hardness (Load 500g) GPa 12.0
Flexural Strength MOR(20℃) MPa 545
Compressive Strength MPa 2400
Young's Modulus of Elasticity GPa
Possion Ratio -
Fracture Toughness Mpa・m1/2 6.0
Thermal Characteristics Coefficient of Linear Thermal Expansion 40-800℃ 1x10-6/℃ 10.2
Thermal Conductivity 20℃ W/(m.K) 2.2
Specific Heat J/(g.K)
Heat Shock Resistance(Put in water) ℃ -
Electrical Characteristics Dielectric Strength kV/mm
Volume Resistivity 20℃ Ω.cm 1014
300℃
*The values are typical material properties and may vary according to products configuration and manufacturing process.
CAPA-SSiC
UNITS SILICON CARBIDE SSIC
Density G/CM3 3.2
Water Absorption 0
Color Black
Main Characteristics
  • Hardness
  • Wear Resistant
  • Mechanical strength
  • Light Weight
Mechanical Characteristics Vicker Hardness (Load 500g) GPa 23
Flexural Strength MOR(20℃) MPa 540
Compressive Strength MPa -
Young's Modulus of Elasticity GPa 440
Possion Ratio - 0.17
Fracture Toughness Mpa・m1/2 4 - 5
Thermal Characteristics Coefficient of Linear Thermal Expansion 40-800℃ 1x10-6 /℃ 3.7 - 4.4
Thermal Conductivity 20℃ W/(m.K) 60
Specific Heat J/(g.K) 0.67
Heat Shock Resistance(Put in water) ℃ -
Electrical Characteristics Dielectric Strength kV/mm -
Volume Resistivity 20℃ Ω.cm 105
300℃ 104
*The values are typical material properties and may vary according to products configuration and manufacturing process.
CAPA-RBSiC
UNITS REACTION BONDED SILICON CARBIDE
Density G/CM3 3.2
Water Absorption 0
Color Black
Main Characteristics
  • Hardness
  • Wear Resistant
  • Mechanical strength
  • Light Weight
Mechanical Characteristics Vicker Hardness (Load 500g) GPa 22
Flexural Strength MOR(20℃) MPa 450
Compressive Strength MPa -
Young's Modulus of Elasticity GPa 430
Possion Ratio - 0.16
Fracture Toughness Mpa・m1/2 4 - 5
Thermal Characteristics Coefficient of Linear Thermal Expansion 40-800℃ 1x10-6 /℃ 3.7 - 4.4
Thermal Conductivity 20℃ W/(m.K) 60
Specific Heat J/(g.K) 0.67
Heat Shock Resistance(Put in water) ℃ -
Electrical Characteristics Dielectric Strength kV/mm -
Volume Resistivity 20℃ Ω.cm
300℃
*The values are typical material properties and may vary according to products configuration and manufacturing process.
CAPA-SIN
UNITS SILICON NITRIDE
Density G/CM3 3.2
Water Absorption 0
Color Black
Main Characteristics
  • High toughness
  • Thermal shock resistant
  • Tight tolerances
Mechanical Characteristics Vicker Hardness (Load 500g) GPa 13.9
Flexural Strength MOR(20℃) MPa 580
Compressive Strength MPa -
Young's Modulus of Elasticity GPa 290
Possion Ratio - 0.28
Fracture Toughness Mpa・m1/2 4 - 5
Thermal Characteristics Coefficient of Linear Thermal Expansion 40-800℃ 1x10-6 /℃ 2.4 - 3.2
Thermal Conductivity 20℃ W/(m.K) 25
Specific Heat J/(g.K) 0.64
Heat Shock Resistance(Put in water) ℃ -
Electrical Characteristics Dielectric Strength kV/mm 12
Volume Resistivity 20℃ Ω.cm >1014
300℃ 1012
*The values are typical material properties and may vary according to products configuration and manufacturing process.
CAPA-AlN
UNITS SILICON NITRIDE
Density G/CM3 3.2
Water Absorption 0
Color Gray
Main Characteristics
  • Thermally stable
  • Electrical resistivity
Mechanical Characteristics Vicker Hardness (Load 500g) GPa 10.4
Flexural Strength MOR(20℃) MPa 350
Compressive Strength MPa -
Young's Modulus of Elasticity GPa 310
Possion Ratio - 0.24
Fracture Toughness Mpa・m1/2 -
Thermal Characteristics Coefficient of Linear Thermal Expansion 40-800℃ 1x10-6 /℃ 4.6
Thermal Conductivity 20℃ W/(m.K) 140
Specific Heat J/(g.K) 0.738
Heat Shock Resistance(Put in water) ℃ -
Electrical Characteristics Dielectric Strength kV/mm 25
Volume Resistivity 20℃ Ω.cm 1012
300℃
*The values are typical material properties and may vary according to products configuration and manufacturing process.
CAPA-STE
UNITS STEATITE
Density G/CM3 2.8
Water Absorption 0
Color White
Main Characteristics
  • Excellent dielectric strength
  • Good dielectric loss
Mechanical Characteristics Vicker Hardness (Load 500g) GPa 5.8
Flexural Strength MOR(20℃) MPa 140 - 160
Compressive Strength MPa -
Young's Modulus of Elasticity GPa 120
Possion Ratio - 0.22
Fracture Toughness Mpa・m1/2 -
Thermal Characteristics Coefficient of Linear Thermal Expansion 40-800℃ 1x10-6 /℃ 7.7 - 10.0
Thermal Conductivity 20℃ W/(m.K) 2.0 - 3.0
Specific Heat J/(g.K)
Heat Shock Resistance(Put in water) ℃ 250
Electrical Characteristics Dielectric Strength kV/mm
Volume Resistivity 20℃ Ω.cm
300℃
*The values are typical material properties and may vary according to products configuration and manufacturing process.
CAPA-CODI
UNITS CORDIERITE
Density G/CM3 2.3
Water Absorption 0
Color Gray
Main Characteristics
  • Excellent thermal shock resistance
  • Heat resistance
  • Low thermal expansion
Mechanical Characteristics Vicker Hardness (Load 500g) GPa -
Flexural Strength MOR(20℃) MPa 30
Compressive Strength MPa -
Young's Modulus of Elasticity GPa 140
Possion Ratio - 0.31
Fracture Toughness Mpa・m1/2 -
Thermal Characteristics Coefficient of Linear Thermal Expansion 40-800℃ 1x10-6 /℃ <0.2(22-23℃）
Thermal Conductivity 20℃ W/(m.K) 2.0 - 3.0
Specific Heat J/(g.K) 0.71
Heat Shock Resistance(Put in water) ℃ 1000
Electrical Characteristics Dielectric Strength kV/mm 19.1
Volume Resistivity 20℃ Ω.cm >1014
300℃ 1012
*The values are typical material properties and may vary according to products configuration and manufacturing process.

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