Black silicon carbide particle
1. Product Introduction of Black silicon carbide particle
Black silicon carbide particle is the raw material for sintered silicon carbide ceramics. It has excellent properties such as high strength, high hardness, high thermal conductivity, good chemical corrosion resistance, and good thermal shock resistance. Sintered silicon carbide ceramics are often used in thermal power desulfurization systems, chemical anti-corrosion and wear-resistant parts, and other anti-corrosion and wear-resistant fields. For silicon carbide ceramic manufacturing, the black silicon carbide particle should be of high SiC purity and particles consistency. The black silicon carbide particles and powder produced by Haixu Abrasives are made of 98% silicon carbide A-grade blocks, which are processed by the ball milling process. The grains are round in shape and evenly distributed. The black silicon carbide powder is produced by the pickling purification process, which helps the sintered ceramics maintain better-sintered density and bending strength.
The properties of black silicon carbide particles include:
- Black silicon carbide has a strong anti-oxidation ability. It can maintain the stability of chemical performance even at high temperatures.
- Strong toughness, high bending strength, strong compressive ability under high temperature.
- The density of black silicon carbide is lower than alumina, and the sintered silicon carbide ceramics are lighter than corundum ceramic parts.
- Low thermal expansion coefficient and low thermal conductivity. Stable thermal performance.
- High wear resistance, Mohs hardness 9.2-9.3, Vickers hardness 2200. It is higher than corundum and lower than diamond.
- High purity, low free carbon, iron, and other impurities, which is beneficial to the sintering of silicon carbide ceramics.
2. Typical Chemical composition of Black silicon carbide particle(0.5-1mm):
| SiC | 98.78% |
| H2O3 | 0.15% |
| Fe2O3 | 0.18% |
| F.C | 0.13% |
| Magnetic Content | 0.011% |
3. Typical physical properties of Black silicon carbide particle：
| Mohs Hardness: | 9.2 |
| Vickers hardness | 2200 |
| Melting Point: | dissociated at about 2300°C |
| Maximum work temperature: | 1900°C |
| Specific Gravity: | 3.2-3.45 g/cm3 |
| Bulk density(LPD): | 1.2-1.6 g/cm3(depends on the size) |
| Color: | Black |
| Particle shape: | Hexagonal |
| Modulus of Elasticity | 58-65×106 psi |
| Coefficient of Thermal Expansion | 3.9-4.5 x10-6/°C |
| Thermal Conductivity | 71-130 W/MK |
4. Particle size of Black silicon carbide particle：
Grain：F12, F16, F20, F24, F36, F40, etc.
Micro grit powder：F240, F320, F500, F1200, etc.
Sand：0-1mm,1-2mm,0.2-0.5mm,0.5-1mm
Fine powder：0-325#
5. Applications of Black silicon carbide particle for ceramics：
Reaction bonded silicon carbide ceramics, ceramic wear parts
Silicon carbide seals
Silicon carbide ceramic filter for foundry
DPF ceramic parts
Foam ceramics
Silicon carbide desulfurization nozzle
6. Production details of Black silicon carbide particle:
7. Packing of Black silicon carbide particle for ceramics:
25KGS/PVC Bag
1Metric Ton/Jumbo Bag
25KGS/PVC Bag,40Bags/Jumbo Bag
1 Metric Ton/Jumbo Bag/Pallet
Other customized packages are available
8. FAQ:
Q: Are you a manufacturer?
A: Yes, Our factory was established in 1999. We have plants of black silicon carbide and green silicon carbide.
Q: What are the difference between the FEPA, JIS, USS grit sizes?
A: FEPA grit size is according to FEPA European standard. JIS grit size is according to the Japanese JIS standard which is of more grits than the FEPA standard, especially for micro powder. USS is according to ANSI USA standard whose sieving to Tyler mesh.
Q: Are the silicon carbide material from you is reclaimed material?
A: No. We only produce A-grade silicon carbide produced from high-quality melted SiC blocks.
Q: Is there any restriction to export silicon carbide from China?
A: Yes, it needs to provide an export license to Chinese customs. We could provide it and make customs clearance in China.
Q: Are free samples available?
A: Yes, we provide free samples within 1 kg. Customers only need to bear the logistic cost.
Q: What is the lead time for each order?
A: It depends on the quantity required. Generally 5-10 days for FCL(20-25MT).
Q: What is your annual capacity?
A: Our capacity is 1800-2000MT per month, annually appr. 22000 MT.
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