SiN2 — Properties & Data | MatWorld

SiN2

ceramic

· JVASP-137926· SiN2

Silicon nitride (Si₃N₄) is a high-performance structural ceramic known for exceptional hardness, thermal stability, and resistance to oxidation and thermal shock. It is widely used in demanding aerospace, automotive, and industrial applications where conventional materials fail, including gas turbine components, cutting tools, bearing elements, and high-temperature structural parts that must withstand extreme thermal cycling and mechanical stress.

turbine blades and engine componentsceramic cutting toolsbearing and wear surfacesthermal shock resistance applicationsaerospace heat shieldshigh-temperature structural parts

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	3.144	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)	1.024	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.09358	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.

SiN2

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental