Silicon Carbide — SiC
Silicon Carbides offer exceptional hardness, corrosion resistance, wear resistance, superior strength, excellent thermal conductivity, and maintains good mechanical properties at high temperatures.
Primary Features
- High hardness
- Wear resistance
- Excellent mechanical properties at high temperature
- Corrosion resistance
- High strength
- Excellent thermal conductivity
- Good thermal shock resistance
- Best stiffness to weight ratio
Applications
- Semiconductor manufacturing equipment components
- High-temperature components
- Sealing components
- Wear-resistant components
- Components requiring high-stiffness
Materials
- KMT-SiC — black
- KMT-SSiC — black
Material Properties for KemaTek™ Silicon Carbides
| Properties | Units | Test | Silicon Carbides — SiC | |
| Material Name | KMT-SSiC | KMT-SiSiC | ||
| Color | Black | Black | ||
| Primary Material Content | — | — | ||
| Characteristics | High temperature strength, high chemical resistance, good thermal conductivity | Good chemical and abrasion resistance | ||
| Applications | Semiconductor equipment, sealing, and anti-heat components | Abrasive and corrosion resistant components | ||
| Bulk Density | g/cc | ASTM-C20 | 3.15 | 3.02 |
| Water Absorption | % | ASTM-C373 | 0 | 0 |
| Vickers Hardness (Load 500 g) | GPa | ASTM-C1327-03 | 28.0 | 20.0 |
| Flexural Strength | MPa | ASTM-C1161-02c | 380 | 250 |
| Compressive Strength | MPa | ASTM-C773 | 3900 | — |
| Young’s Modulus of Elasticity | GPa | ASTM-C1198-01 | 410 | 330 |
| Poisson’s Ratio | — | ASTM-C1198-01 | 0.14 | — |
| Fracture Toughness | MPa * m12 | ASTM-C1421-01b (Kevron notched beam) | 4 | — |
| Coefficient of Linear Thermal Expansion, 40-400 ℃ | x 10-6/℃ | ASTM-C372-94 | 4.0 | 4.5 |
| Thermal Conductivity, 20℃ | W/(m • K) | ASTM-C408-88 | 120 | 45 |
| Specific Heat | J/(Kg • K) x 103 | ASTM-E1269 | 0.65 | — |
| Thermal Shock Resistance | ℃ | Note 1 | — | — |
| Volume Resistivity, 20℃ | Ω • cm | ASTM-D257-99 | 102 — 106 | — |
| Dielectric Strength | KV/mm | ASTM-D149-97 | — | — |
| Dielectric Constant, 1 MHz | — | ASTM-D150-98 (1 MHz) | — | — |
| Loss Tangent | (x 10-4 | ASTM-D150-98 (1 MHz) | — | — |
| Nitric Acid 60% 90℃ | WT Loss (mg/cm2/day) | — | — | — |
| Sulphuric Acid 95%, 95℃ | WT Loss (mg/cm2/day) | — | — | — |
| Caustic Soda 30%, 95℃ | WT Loss (mg/cm2/day) | — | — | — |
Ceramic Materials Properties Chart — All Materials — PDF, 128K
For more information or to get a quote on your next refurbishment project, please contact us.