NR0103 Silicon Nitride Powder (CAS No.12033-89-5)

Catalog No. NR0103
Size Customize
CAS Number 12033-89-5
Chemical Formula Si3N4
Density 3.44 g/mL at 25 °C (lit.)
Particle Size Customized
Form Black gray powder
Purity >99%

Silicon Nitride Powder (CAS: 12033-89-5) is a kind of black-gray powder. Stanford Advanced Materials (SAM) offers high-quality Silicon Nitride Powder with competitive pricing.

Related products: Manganese Nitride (MnN) Powder, Zirconium Nitride (ZrN) Powder, Titanium Nitride Powder

Silicon Nitride Powder Description

Silicon Nitride Powder (CAS: 12033-89-5) is a kind of black gray powder, which is an important structural ceramic material with high hardness, inherent lubricity, and wear resistance. It is an atomic crystal; it is resistant to oxidation at high temperatures. Moreover, it can resist the impact of cold and heat. It will not be broken if it is heated to above 1000°C in the air, cooled rapidly, and heated rapidly. It is precise because of the excellent characteristics of silicon nitride ceramic that people often use to manufacture mechanical components such as bearings, turbine blades, mechanical seal rings, permanent molds, and so on.

Silicon Nitride Powder Specification

Compound Formula


Molecular Weight



Black gray powder

Melting Point

1900 °C, 2173 K, 3452 °F


3.44 g/mL at 25 °C (lit.)

Electrical Resistivity

11 to 12 10x Ω-m

Poisson's Ratio

0.24 to 0.27

Specific Heat

720 to 800 J/kg-K

Silicon Nitride Powder Applications

To manufacture mechanical components such as bearings, turbine blades, mechanical seal rings, permanent molds, and so on.

This product is mainly used for:

1) manufacturing structure devices: such as metallurgy, chemical industry, machinery, aviation, aerospace, and energy industries to use the ball and roller bearing, sliding bearing, sleeve, valve, and wear-resistant, high temperature, corrosion-resistant structural components required.

2) Surface treatment of metal and other materials: such as molds, cutting tools, turbine blades, turbine rotors, and cylinder wall coatings.

3) Composite materials: such as metals, ceramics and graphite composites, rubber, plastics, coatings, adhesives, and other polymer-based composites.

4) The colorless, transparent self-lubricating wear-resistant nano-particle films for mobile phones, cars, and other advanced surface protection.

5) Ball bearings

6) Ball valves and parts

7) Corrosion-resistant turbine

8) Cutting tools Grinding wheels

9) Insulating parts

10) Spray nozzles (for rockets)

Silicon Nitride Powder SAFETY INFORMATION

Storage Class Code

13 - Non Combustible Solids



Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), EyeshieldsGloves

Silicon Nitride Powder Packaging

Our Silicon Nitride Powder is carefully handled during storage and transportation to preserve the quality of our product in its original condition.



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