High Purity Ceramic Raw Material Silicon Nitride Industrial Powder White / Grey

High Purity Spray Silicon Nitride Raw Material Si3N4 Granulated Powder 

Silicon Nitride (Si₃N₄) is a high-performance white to gray crystalline powder with a melting point of 1900 °C and a density of 2.2–3.5 g/cm³. It exists in two crystalline forms: α-Si₃N₄ (hexagonal structure) and β-Si₃N₄ (crystalline structure). The material exhibits exceptional hardness, high-temperature stability, and resistance to oxidation, making it one of the most important structural ceramics available today.

Silicon Nitride (Si3N4) powder is a high-performance engineering ceramic material widely used in advanced structural and functional applications. It is known for its excellent mechanical strength, thermal stability, and wear resistance.

Technical Specifications of Silicon Nitride (Si₃N₄) Powder

Property                                                Value
Other Names                                        Silicon (IV) nitride, α-Si₃N₄, SiN, Trisilicon tetranitride
CAS Number                                        12033-89-5
Chemical Formula                                 Si₃N₄
Molecular Weight                                   140.28 g/mol
Appearance                                           White to gray powder
Melting Point                                          1900 °C
Density                                                   2.2–3.5 g/cm³
Solubility                                                Insoluble in water
Exact Mass                                            139.943 g/mol

Silicon Nitride powder offers a combination of advanced ceramic properties:

– High fracture toughness
– Excellent thermal shock resistance
– High wear resistance
– Low thermal expansion coefficient
– Stable performance at high temperatures

Silicon Nitride powder is widely used in a variety of industrial applications, including:

– Structural ceramic components
– Bearing and rolling elements
– Cutting tools and wear-resistant parts
– Aerospace engineering components
– Automotive engine components
– Semiconductor equipment parts