Green silicon carbide #500 #600 #3000 #4000 mesh 3D printing powder
The significant advantage of 3D printing technology is obtaining product shape without making molds. In industrial production, 3D printing technology is suitable for new product development, small batch production of parts, rapid prototyping of complex shaped parts, and mold design and manufacturing. In the manufacturing of silicon carbide ceramics, 3D printing developed a lot in recent years. Green silicon carbide powder 500 # 600 # 3000 # 4000 # mesh are popular specifications for 3D printing powder material. It can produce reaction-sintered silicon carbide ceramic bodies quickly by the binder jet method.
Sintered silicon carbide ceramic parts are traditionally used in metallurgy, steel, high-temperature kilns, petrochemicals, power equipment, and mechanical manufacturing. Recently years, it is popular in innovative technology fields such as new energy, semiconductors, aerospace, military, etc. Silicon carbide ceramics have excellent performance. However, some silicon carbide ceramic components are complex. In the meantime, the SiC ceramic is fragile after sintering. 3D printing technology can solve this problem by making more precise SiC ceramics. It can reduce the surface treatment work by getting the mold directly.
3D printing of silicon carbide ceramics requires pre-mixing silicon carbide powder with carbon black and binder. Then crushing and granulating to obtain a silicon carbide hybrid material. The mixed powder of silicon carbide is extruded and printed into a green body. Next, sinter the body into ceramic parts. Silicon carbide micro powders 3.5um,5um,40um, and 28um work as pre-mixed silicon carbide powders. The produced silicon carbide ceramics have the characteristics of high thermal conductivity, wear resistance, corrosion resistance, low coefficient of thermal expansion, and high strength.
The 3D-printed silicon carbide features are as follows:
| Density | 3.05-3.21 g/cm3 |
| Thermal expansion coefficient | 4.5-4.8 x 10-6/K |
| Thermal conductivity | 110-220 W/(M · K) |
| Elastic modulus | 350-450 GPa |
| Vickers hardness | 3100-3400 HV |
| Room temperature flexural strength | 380-640 MPa |
| Fracture toughness | 3.0-3.8 K/MPa m1/2 |
Silicon carbide micro powder with high purity and uniform particle size is more qualified for 3D printing. Usually, the purity and hardness of green silicon carbide micro powder are higher than that of black one. Green silicon carbide powders 500 # 600 # 3000 # 4000 # mesh are produced by the water washing process. They have good fluidity and are more suitable for 3D printing technology.
