We offer two different sizes of Boron Carbide Sintering Aid Powders. These powders are used as a sinter aid for making Silicon Carbide (SiC) sintered ceramics. These Boron Carbide additives aid in the sintering process by removing oxygen and is typically used as 1- 2% by weight (not volume).
- ~ 0.5 Micron nanoparticle. (At an additional cost, add $38.00 to base price). The largest particle size in this powder will be about 5 microns. Typically, 98% of all of the particles will be smaller than 1.7 micron. The average particle size is ~0.6 micron. This powder has Boron content of 76% minimum.
- 1.7 Micron - This powder has a large collection of fines, with the D50 average particle size approximately 1.7 - 2.0 micron. The largest particle size in this powder is 6 - 7 microns.
- Minimum Quantity: 3 pounds. Sold by the pound.
Please also see our 0.5 micron Green Silicon Carbide Sintering Flour. (This used as the base material for a SiC sintered ceramic).
Specifications of Abrasive Grade Boron Carbide:
- Typical Packaging: Depends on quantity ordered
- Odor: Odorless
- Safety: Avoid breathing dust; wear protective gear
- Purity: 98% B + C minimum
- Melting Point: 2723 ?F
- Custom Gradation Available? Yes
- Nickname: B4C, Black Diamond
- Hardness: 3000 Knoop < 9.5 Mohs
- Grain Shape: Blocky, Angular
- Type: Granular or powdery depending on grade
- Specific Gravity: 2.51
- Pricing Based Per: Pound
- NMF Classification: Class 55
- Color: Black
- Instability: Stable
- Hazardous? Not listed as hazardous; see other cautions
- Disposal: According to Federal, State, Local regulations
- Fire & Explosion: Fines can cause explosion and smolder
- Keep away from all sources of ignition
