Black Silicon carbide powder is acid pickled an water separated powder with an extreme hardness after producing at high
temperature in an electric resistance type furnace with quarts sand and petroleum coke.
Black Silicon Carbide is produced by a process involving the electrochemical reaction of silica(SiO2) – in the form of quartz mixed with Carbon(C) in the form of raw petroleum coke. The stoichiometric mixture is reacted in an electrical resistance furnace at a temperature up to 2500℃ to yield high quality crystals. The process is large furnace technology with a graphite electrode in the furnace center. The large crystals are then segregated, crushed, cleaned of magnetic impurities in high intensity magnetic separators and classified into narrow size fractions to suit the end use. Dedicated lines produce products for different applications. The micro powder form silicon carbide from SICHENG Abrasives is with good size distribution, high purity, and low impurities.
TYPICAL CHEMICAL ANALYSIS | TYPICAL PHISICAL PROPERTIES | ||
SiC | ≥98% | Hardness: | Mohs:9.2 |
SiO2 | ≤1% | Melting Point: | Sublimes at 2250 ℃ |
H2O3 | ≤0.5% | Maximum service temperature: | 1900℃ |
Fe2O3 | ≤0.3% | Specific Gravity: | 3.2-3.45 g/cm3 |
F.C | ≤0.3% | Bulk density(LPD): | 1.2-1.6 g/cm3 |
Magnetic content | ≤0.02% | Color: | Black |
Particle shape: | Hexagonal | ||
P-microgrits | P240 P280 P320 P360 P400 P500 P600 P800 P1000 P1200 P1500 P2000 P2500 P3000 P4000 P5000 | ||
FEPA | F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000 | ||
JIS | 240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000#8000# | ||
Black silicon carbide application：
1.Ceramic products like silicon carbide ceramic seal.
2.Lapping, polishing.
3.Insulation
4.Wire sawing
5.Cutting material such as stone, silicon wafers.
6.Raw material of Knife Grinder, Whetstone, oilstone, grinding stone, honing, sharpening sticks, etc.
7.Material of Polishing wax, polishing fluid, grinding powder, grinding fluid and so on
8.Coated abrasives tools such as sanding paper, foam polishing tools, polishing wheel, sanding disc,etc.
9.Wear-resisting floor and non-slip coating such as additive for epoxy resin floors.
10.Brake linings.
11.Semiconductor industry.
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