Ferro Silicon Nitride is an emerging high-quality refractory raw material that can replace the more expensive silicon nitride and is used for large blast furnace taphole mud. Ferro Silicon Nitride has the characteristics of good opening, sintering aid, corrosion resistance, and low cost.
Ferro Silicon Nitride Shape: Block/Powder
Remarks: It can be customized into 10-100mm or 10-200 mesh block, granular, powder.
Silicon Nitride Composition Specifications
| Chemical Composition (%) | |||||
| Element | Si3N4 | Si | N | Fe | Al+Ca |
| Content | 75～80 | 47～51 | 30～33 | 12～16 | <2.5 |
| 70～75 | 49～52 | 28～30 | 12～16 | <2.5 | |
| Particle size distribution | |||||
| Powder (%) | |||||
| Particle size | -45μm | -45μm～-75μm | +75μm～-150μm | +150μm | -75μm |
| Fine powder | >80 | 5～1.5 | <3 | 0 | 95～100 |
| Ordinary powder | 70～80 | 10～20 | 8～15 | <3 | 85～95 |
| Crude powder | 60～70 | 10～16 | 10～16 | <8 | 65～80 |
| Granular | |||||
| Item | Particle size | Percentage | |||
| Fine powder | 3～5mm | >90 | |||
| Ordinary powder | 3～10mm | >90 | |||
| Crude powder | 10～50mm | >90 | |||
Silicon Nitride Picture Display
