APPLICATION
Silicon carbide is one of best material within the secondary frictional material and is applied for high-temperature
equipment, wear-resisting parts of pump valve, automobile, astronavigation,
shipping etc.
PHYSICAL PROPERTY
-- Mach inability of blank
-- Availability of complicated products
-- High impact resistance
-- High hardness
-- Strong corrosion resistance
-- Minor frication coefficient
TYPE OF PRODUCTS
--Reaction bonded silicon carbide (SISIC)
--Pressureless bonded silicon carbide (SSIC)
--Silicon carbide plus 30% carbon (SIC + CAR.)
TECHNICAL INDEX
| Item | Ssic | Sisic | Sic+Carbon |
| purity(％) | >97 | >90 | 30% carbon |
| Hardness (HRA) | ≥90 | ≥90 | ≥85 |
| Grain size (um) | 0.5-0.7 | 8-20 | 20-40 |
| Density (g/cm) | 3.06-3.15 | >3.05 | >2.65 |
| Tensile Strength (MPa) | 400-580 | 350-450 | 200 |
| Compressive Strength (MPa) | 3900 | >2500 | 1800 |
| Fracture Toughness (MPa) | 3.05-4.6 | 4.3 | ---- |
| Elasticity Modulus (GPa) | 380-410 | 420 | ---- |
| Thermal Conductivity (Wm/k) | 102.6 | 35-110 | 125 |
| Thermal Expansion Coefficient (1/℃) | 4.02×10 | 4.3×10 | 3×10 |
| Poisson Ratio | 0.14 | 0.15 | ---- |
