Nano Silicon Nitride Powder

• Nanoscale Particle Sizes: Commercial options include approximately 20 nm, below 50 nm, and 100 nm grades.

• High-Purity Options: 98%, 98.5%, 99%, and 99.9% specifications may be available.

• Multiple Crystal Structures: Alpha, beta, and amorphous silicon nitride grades.

• High Mechanical Strength: Silicon nitride is widely used in demanding structural ceramic applications.

• Excellent Thermal Stability: Suitable for advanced ceramic systems exposed to elevated temperatures.

• Wear and Corrosion Resistance: Used in specialized bearings, cutting tools, and industrial ceramic components.

• High Surface Area: Selected nanopowder grades offer elevated BET surface area for ceramic processing and material development.

• Custom Powder Specifications: Particle size, morphology, phase composition, oxygen content, and purity can be specified.

Property	Specification
Product Name	Nano Silicon Nitride Powder
Chemical Name	Silicon Nitride
Chemical Formula	Si₃N₄
CAS Number	12033-89-5
Molecular Weight	140.28 g/mol
Appearance	White, grayish-white, or gray powder, depending on grade
Purity	98%–99.9%; other grades may be available
Average Particle Size	Approximately 20–100 nm, depending on grade
Commercial Nano Grades	20 nm, below 50 nm, and approximately 100 nm
Particle Morphology	Spherical, irregular, or other forms depending on manufacturing method
Crystal Structures	Alpha (α), beta (β), and amorphous
Density	Approximately 3.17–3.20 g/cm³ for crystalline silicon nitride
Specific Surface Area	Grade-dependent; a 20 nm commercial grade lists greater than 110 m²/g
Oxygen Content	Grade-dependent; specify maximum allowable oxygen content
Water Solubility	Insoluble in water
Thermal Behavior	High-temperature stability; decomposition behavior depends on temperature, pressure, and atmosphere
Chemical Classification	Non-oxide advanced ceramic
Available Forms	Nanopowder and specialized powder grades

• 20 nm Nano Silicon Nitride Powder: Fine amorphous nanopowder for specialized ceramic processing and advanced materials research. A commercial example lists 99% purity and BET surface area above 110 m²/g.

  30–50 nm Silicon Nitride Nanopowder: Fine nanoscale material for ceramic development and research applications.

• Below 50 nm Spherical Silicon Nitride: Spherical nanopowder grades may be available with approximately 98.5% or higher purity, depending on supplier.

  Approximately 100 nm Silicon Nitride Powder: Commercial grades with 99.9% purity are listed by selected suppliers.

• Alpha Silicon Nitride Nanopowder (α-Si₃N₄): Used for ceramic powder processing, sintering, and development of silicon nitride structural components.

• Beta Silicon Nitride Nanopowder (β-Si₃N₄): Available for specialized ceramic processing and research involving beta-phase silicon nitride.

• Amorphous Silicon Nitride Nanopowder: Non-crystalline powder for selected research and material development applications.

• High-Purity Silicon Nitride Nanopowder: 99%, 99.9%, and higher-purity specifications may be available.

• Custom-Specification Si₃N₄ Nanopowder: Particle size, phase composition, morphology, oxygen content, BET surface area, and impurity limits evaluated according to the RFQ.

1. What is nano silicon nitride powder?

Nano silicon nitride powder is a nanoscale advanced ceramic material with the chemical formula Si₃N₄. It is used in ceramic manufacturing, materials research, electronic applications, and the development of high-performance structural components.

2. What is the CAS number for nano silicon nitride?

The CAS Registry Number is 12033-89-5. Its chemical formula is Si₃N₄, and its molecular weight is approximately 140.28 g/mol.

3. What particle sizes are available for silicon nitride nanopowder?

Commercial options include approximately 20 nm, below 50 nm, and approximately 100 nm. Other particle-size distributions may be available through custom sourcing. Request D10, D50, D90, and BET surface area for precise powder characterization.

4. What is the difference between alpha, beta, and amorphous silicon nitride?

Alpha and beta silicon nitride are different crystalline phases with different structural characteristics. Amorphous silicon nitride does not have the same long-range crystalline arrangement. Phase composition can affect powder processing, sintering, and final ceramic microstructure.

5. What is nano silicon nitride powder used for?

Applications include advanced structural ceramics, ceramic bearings, cutting tools, semiconductor-related components, aerospace materials research, wear-resistant parts, thermal management materials, and ceramic composite development.

6. Can REG Metals source high-purity silicon nitride nanopowder with a COA?

REG Metals can assist with sourcing silicon nitride nanopowder according to customer specifications. A COA, SDS, particle-size analysis, BET surface-area report, and phase composition data can be requested, subject to supplier availability.