Si2N — Properties & Data | MatWorld

Si2N

ceramic

· JVASP-137924· Si2N

Si₂N (silicon nitride) is a high-performance ceramic compound belonging to the nitride ceramic family, known for its exceptional hardness, thermal stability, and resistance to chemical attack. It is used in demanding high-temperature and wear-resistant applications including cutting tools, engine components, bearings, and semiconductor processing equipment, where its superior thermal shock resistance and mechanical strength at elevated temperatures make it preferable to traditional oxide ceramics. The material is particularly valued in industries requiring reliability under extreme conditions where conventional materials would fail or degrade.

cutting tools and insertshigh-temperature bearingsturbine and engine componentssemiconductor processing equipmentwear-resistant coatingsstructural ceramics for thermal applications

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	91.47	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.4800	-	DFT · OptB88vdW
Shear Modulus(G)	71.58	GPa	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	2.986	kg/m³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	1.002	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.3045	eV/atom	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

Si2N

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental