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Silicon Nitride (

) powders are high-performance structural ceramic raw materials characterized by high strength, toughness, thermal shock resistance, and low density. These powders, typically available in grey-black or white, are crucial for producing advanced components like engine parts, bearings, and electric vehicle power modules.

Key Aspects of
Powders:

Structure: Exists primarily in two phases: alpha (
$alpha$
-
), which provides high strength, and beta (
$beta$
-
), often used for high toughness applications.
Properties: Excellent wear resistance, low thermal expansion, and self-lubricating properties, making them ideal for high-temperature and structural applications.
Raw Material Synthesis: Produced using techniques like nitrogenation of silicon powder, or carbothermal reduction of silica, creating fine powders often in the
$0.1$
-
$10$
micron range.
Applications: Key, high-purity material for producing bearings, cutting tools, and structural parts in automotive and aerospace industries.
Impurity Influence: High-purity powders are required because impurities like oxygen and aluminum can significantly affect the sintering and final properties of the ceramic.

Cost-effective preparation of high-quality silicon nitride powders from ...
Nov 15, 2023 — The results demonstrated that the H2O/TEOS ratio significantly influenced the relative content of α and β phase in Si3N4 by changi...
ScienceDirect.com
Preparation and properties of Si3N4 ceramics via vat ...
Silicon Nitride (Si3N4) Materials | Get a Quote
Sizes: Powders: 0.1-10 microns particle size. Ceramics: 50-200mm width, 50-200mm length, 2-20mm thickness. Coatings: 0.1-1mm thick...
SERBAN INCORPORATED

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Silicon Nitride Powder (Si3N4) ceramic grades

Hoganas

https://www.hoganas.com › advanced-ceramic-powders

Hoganas

https://www.hoganas.com › advanced-ceramic-powders

Typical applications: Ceramic cutting tools, Heavy duty components in automotive engines, High-performance parts for mechanical engineering.Read more

Silicon Nitride Powder Si3N4 (CAS No. 12033-89-5) | SAM

Stanford Advanced Materials

https://www.samaterials.com › nitrogen › 103-silicon-nitr...

Stanford Advanced Materials

https://www.samaterials.com › nitrogen › 103-silicon-nitr...

Silicon Nitride Powder (CAS: 12033-89-5) is a distinctive black-gray powder renowned for its significance as a crucial structural ceramic material.Read more

Starting from $100.00In stock

Missing: ~~Raw~~ ‎| Show results with: Raw

SN0103 Silicon Nitride Powder, Si3N4

Advanced Ceramic Materials

https://www.preciseceramic.com › products › silicon-nit...

Advanced Ceramic Materials

https://www.preciseceramic.com › products › silicon-nit...

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

Missing: ~~Raw~~ ‎| Show results with: Raw

Why is silicon nitride (Si3N4) powder white, while ...

cersol

https://www.ceramic-solutions.com › Scientific-Articles

cersol

https://www.ceramic-solutions.com › Scientific-Articles

Apr 3, 2026 — Silicon nitride (Si3N4) is a valuable advanced ceramic used in structural environments like automotive rotors and aerospace bearings.Read more

High performance and dense Si 3 N 4 ceramic prepared by ...

ScienceDirect.com

https://www.sciencedirect.com › science › article › pii

ScienceDirect.com

https://www.sciencedirect.com › science › article › pii

Sep 1, 2024 — This research used low-price Si powder as the primary raw material to prepare dense Si3N4 structural ceramics through gelcasting and reaction re ...Read more

High Purity Silicon Nitride Ceramic Powder for sale

Princeton Powder

https://princetonpowder.com › silicon-nitride-si3n4-po...

Princeton Powder

https://princetonpowder.com › silicon-nitride-si3n4-po...

Silicon Nitride (Si₃N₄) powder is a high-performance ceramic material known for its exceptional hardness, thermal stability, and resistance to thermal shock ...Read more

What is the Si3N4 Ceramic Powder Granulation?

Stanford Advanced Materials

https://www.samaterials.com › content › what-is-the-si3n...

Stanford Advanced Materials

https://www.samaterials.com › content › what-is-the-si3n...

Jul 24, 2025 — The granulation methods of Si3N4 ceramic powders mainly include dry roller granulation, cold isostatic pressing and spray granulation.Read more

High purity 99.9% si3n4 ceramic powder for sale

SAT nano Technology Material Co., Ltd

https://www.satnanomaterial.com › high-purity-99-9-si...

SAT nano Technology Material Co., Ltd

https://www.satnanomaterial.com › high-purity-99-9-si...

High purity 99.9% si3n4 ceramic powder for sale. Size:50nm, 100nm, 1-3um, 5um. Purity:99.5%. CAS No:24304-00-5 ENINEC No.:246-140-8.Read more

Preparation of high‐strength Si3N4 ceramics via vat ... - ACerS

Wiley

https://ceramics.onlinelibrary.wiley.com › doi › jace

Wiley

https://ceramics.onlinelibrary.wiley.com › doi › jace

Oct 22, 2024 — This paper introduces an approach to preparing high-strength Si3N4 ceramics using vat photopolymerization with a bi-phase particle size ...