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Silicon Nitride (Si₃N₄)

Silicon Nitride (Si₃N₄) is a white to slightly beige powder that has a high melting point and good chemical stability. It is thermodynamically stable, which makes it commercially important. It has a high melting point. It shows high thermal shock resistance, high strength through a wide temperature range, high fracture toughness, high hardness, and outstanding wear resistance to abrasion and corrosion. It has a smaller thermal expansion coefficient and shows small shrinkage by reheating.
Typical Chem Analysis

Si= 59.4%
N= 38.2%

Typical Applications

Silicon Nitride (Si₃N₄) has wide applications in various kinds of fields. It is an important material for gas turbine and diesel engine parts. It is used in the manufacturing of bearings and high-heat ceramics. It is also used as an abrasive and in cutting tools. Silicon Nitride is used in electronics as an insulator and chemical barrier for integrated circuit production.

Packaging Options

50 lb. net weight bags, drums, and bulk bags


Silicon Nitride TSCA (SARA Title III) Status: Listed
For further information, please call the EPA Office of Chemical Safety and Pollution Prevention (OCSPP) at 202-564-2902.
Silicon Nitride CAS Number: 12033-89-5
Silicon Nitride EU Classification: Not Listed

Sustainable Qualities

Silicon Nitride is a high-performance ceramic material considered sustainable due to its durability and longevity. It has excellent thermal and chemical stability and is used in a variety of applications, including cutting tools, ball bearings, and gas turbine engine components. As a material that can withstand high temperatures and wear, it has a long service life, reducing the need for frequent replacements and contributing to a circular economy. Additionally, Silicon Nitride can be recycled and reused, reducing waste and environmental impact.

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