LiSi2N3 — Properties & Data | MatWorld

LiSi2N3

ceramic

· LiSi2N3

LiSi₂N₃ is a lithium silicon nitride ceramic compound belonging to the family of oxynitride and nitride ceramics. This material is primarily of research and development interest rather than widely commercialized; it represents exploration of lithium-containing ceramics for advanced applications requiring combinations of low density, thermal stability, and mechanical strength. The lithium incorporation distinguishes it from traditional silicon nitride ceramics, offering potential for specialized high-temperature or lightweight structural applications where reduced density and enhanced ion-conducting properties may be leveraged.

advanced ceramics researchhigh-temperature structural applicationslightweight aerospace componentssolid-state electrolyte developmentthermal management systemsexperimental materials development

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	160.6	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.1900	-	DFT · OptB88vdW
Shear Modulus(G)	124.2	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.948	kg/m³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	5.301	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)2 entries	9.572	-	DFT · OptB88vdW
↳	6.545 range 4.305–8.785median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)	4.282	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.5756	C/m²	DFT · OptB88vdW
↳	0.7793	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00331	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00189	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-310.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	377.5	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-1.262	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.

LiSi2N3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental