Silicon Nitride Si3N4 Ceramic Powder
Formula | Si3N4 |
Synonyms | Silicon Nitride |
Appearance | Black Powder |
Particle Size | -60 mesh or customize |
Melting Point | 1900 ℃ |
Density | 3.17 g/cm³ at 25°C |
Purity | 99.9% 3N (trace metals basis) |
CAS Number | 12033-89-5 |
Description of Silicon Nitride Si3N4 Powder
Silicon Nitride (Si₃N₄) powder is a high-performance ceramic material known for its exceptional hardness, thermal stability, and resistance to thermal shock. It is widely used in advanced applications such as cutting tools, bearings, and engine components due to its high strength, low density, and excellent wear resistance. Si₃N₄ powder is also valued for its chemical resistance and ability to withstand high temperatures, making it ideal for demanding environments in industries like aerospace, automotive, and electronics.
Princeton Powder is a wholesale supplier of Silicon Nitride ceramic powder, offering a wide range of products including ceramic plates, rods, pellets, crucibles, sputtering targets, and custom shapes. Our extensive manufacturing expertise ensures reliable, tailored solutions to effectively support your projects. Additional shapes are available upon request.
Chemical Composition
Product | Phase Ratio | Purity (%) | Particle D50 (μm) | Element content (%) | Impurity (ppm) | |||||
N | O | C | Si free | Fe | Al | Ca | ||||
SiN | β＞50% | 99.999 | ＜2.5 | ＞38.5 | ＜0.8 | ＜0.15 | ＜0.3 | ＜5 | ＜3 | ＜3 |
SiN | β＞50% | 99.999 | ＜0.8 | ＞38.0 | ＜2.0 | ＜0.2 | ＜1.2 | ＜30 | ＜20 | ＜20 |
SiN | α＞70% | 99.95 | ＜0.8 | ＞38.5 | ＜1.0 | ＜0.2 | ＜0.5 | ＜50 | ＜200 | ＜50 |
SiN | α＞92% | 99.50 | ＜2.5 | ＞38.5 | ＜2.5 | ＜0.2 | ＜0.5 | ＜2000 | ＜2000 | ＜500 |
SiN | α＞95% | 99.00 | ＜5.0 | ＞38.0 | ＜2.0 | ＜0.2 | ＜0.5 | ＜4000 | ＜4000 | ＜1000 |
SiN | Amorphous | 97.00 | ＜50nm | ＞38.0 | ＜0.2 | ＜0.05 | N/A | ＜600 | ＜5 | ＜5 |
Applications
- Cutting Tools: For high-speed machining due to its hardness and wear resistance.
- Bearings: In high-performance bearings for reduced friction and extended lifespan.
- Engine Components: In automotive and aerospace engines for its high strength and thermal stability.
- Ceramics: For advanced ceramics with high thermal shock resistance and durability.
- Electronics: In electronic substrates and components for its electrical insulating properties.
Silicon Nitride Si3N4 Powder Reference
Silicon nitride: a potent solid-state bioceramic inactivator of ssRNA viruses
- Silicon nitride (Si3N4) is a non-oxide ceramic compound with known surface bacterial resistance. We show here that off-stoichiometric reactions at Si3N4 surfaces are also capable of inactivating different types of single-stranded RNA (ssRNA) viruses independent of whether their structure presents an envelop or not.
Hot-pressed silicon nitride (HPSN)
HPSN is made from a mix of fine Si3N4 powder and a flux of magnesia in a graphite die, subjected to high temperature and pressure (usually to 1800°C and 40MPa). It is highly dense compared to RBSN and has far better mechanical properties
Applications of silicon nitride ceramics include seal rings, bearing and sealing technology, etc. The combination of good tribological properties and excellent fracture toughness makes silicon nitride ceramics predestined for some applications.
Ceramic material is an inorganic, metallic oxide, nitride, or carbide material. Some elements, such as carbon or silicon, may be considered ceramics.