The role of adding green silicon carbide GC to composite products

The role of adding green silicon carbide GC to composite products
The role of green silicon carbide GC in composite products is mainly reflected in the two aspects of physical performance enhancement and functional expansion. The specific roles and applications are as follows:
1. Physical performance enhancement
‌ Improve strength and hardness‌
The hardness of green silicon carbide GC is second only to diamond (Mohs hardness 9.3-9.5). Adding it to polymer, ceramic or metal matrix as a reinforcing phase can significantly improve the overall mechanical strength and hardness of the composite material.
‌ Enhance wear resistance‌
Its high hardness and self-sharpening properties make the composite material have excellent wear resistance, which is suitable for manufacturing cutting tools (such as stone and glass cutting blades), wear-resistant pipes, bucket liners, etc., and the service life can reach 5-20 times that of ordinary materials.
‌ Improve high temperature stability‌
In high temperature environment (up to 1600-2200℃), the performance is stable, not easy to oxidize or melt, and it is suitable for manufacturing engine parts, refractory kiln tools and other high-temperature application scenarios.
‌ Optimize corrosion resistance‌
It has strong acid and alkali corrosion resistance, which can improve the durability of composite materials in harsh environments such as chemical industry and metallurgy.
2. Functional expansion
‌ Enhanced thermal conductivity ‌
The thermal conductivity is about 3 times that of copper. It is used as a thermal conductive filler for heat dissipation of electronic devices and production of photovoltaic silicon wafers, effectively reducing heat loss.
‌ Toughened ceramic materials ‌
Through the “bridging effect” and “crack deflection” mechanism of whiskers, the fracture toughness and high-temperature mechanical properties of ceramic-based composites are improved.
‌ Improved surface properties ‌
Adding it to the coating can enhance the wear resistance, corrosion resistance and high temperature resistance of the coating, and is suitable for surface protection of automobiles and mechanical equipment; improve the surface finish in ceramic polishing.
‌ Lightweight and functional modification ‌
Low density (about 1/3 of iron), used to manufacture lightweight structural parts; added to plastics (such as nylon, PEEK) to improve wear resistance (up to 2.5 times) and strength.
3. Typical application areas
Cutting and grinding tools–grinding wheels, cutting discs, oilstones
High temperature and refractory materials–kiln linings, engine parts, seals
Electronics and semiconductors–heat dissipation substrates, transistors, solar cell materials
Automotive industry–brake pads, air conditioning system components, wear-resistant coatings
Special ceramics–wear-resistant ceramic valves, toughened structural ceramics
The size, addition ratio and interface bonding process of green silicon carbide GC directly affect the composite effect, and the design needs to be optimized according to the characteristics of the base material.
Haixu Abrasive green silicon carbide GC available sizes and its corresponding range/D50 value
12# (2000-1700um)
14# (1700-1400um)
16# (1400-1180um)
20# (1180-1000um)
24# (850-710um)
30# (710-600um)
36# (600-500um)
40# (500-425um)
4 6#（425-355um）
54#（355-300um）
60#（300-250um）
70#（250-212um）
80#（212-180um）
90#（180-150um）
100#（150-125um）
120#（125-106um）
150#（106-75um）
180#（90-63um）
220# (75 -53um)
240#（57.0±3.0um）
280#（48.0±3.0um）
320#（40.0±2.5um）
360#（35.0±2.0um）
400#（30.0±2.0um）
500#（25.0±2.0um）
600#（20.0±1.5um）
700#（17.0±1.5um）
800# (14.0±1.0 um)
1000(11.5±1.0um)
1500# (8.0±0.6um)
2000#（6.7±0.6um）
2500# (5.5±0.5um)
3000# (4.0±0.5um)
4000# (3.0±0.4um)
6000# (2.0±0.4um)
8000# (1.2±0.3um)
10000#（1.0±0.1um）