SI3 — Properties & Data | MatWorld

SI3

ceramic

· JVASP-124514· SI3

Si₃N₄ (silicon nitride) is a high-performance structural ceramic known for its exceptional hardness, thermal shock resistance, and strength retention at elevated temperatures. It is widely used in automotive engines, cutting tools, and aerospace components where materials must withstand extreme thermal and mechanical stresses without degradation.

turbine blades and rotorsautomotive engine componentscutting tool insertsbearing elementsthermal shock resistance applicationshigh-temperature wear protection

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	4.730	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)	0.1604	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.1561	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.

SI3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental