LiAlO2 — Properties & Data | MatWorld

LiAlO2

Name: LiAlO2
Brand: MatWorld

ceramic

· LiAlO2

Lithium aluminate (LiAlO₂) is an inorganic ceramic compound combining lithium and aluminum oxides, commonly encountered as a crystalline solid. It appears in specialized applications requiring thermal stability and ionic conductivity, particularly in battery electrolytes, high-temperature ceramics, and as a component in advanced refractory materials. Engineers select LiAlO₂-based compositions for environments demanding chemical stability at elevated temperatures and low thermal expansion, though it is often used as a secondary phase or dopant rather than as a primary monolithic structure.

solid-state battery electrolytesrefractory ceramicshigh-temperature thermal managementlithium-ion conductor applicationsaerospace thermal barriers

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	142.0	GPa	DFT
↳	97.90	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2700	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	104.1	GPa	DFT
↳	53.56	GPa	DFT · OptB88vdW

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.

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.582	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)	6.760	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)3 entries	6.666	-	DFT · OptB88vdW
↳	12.78	-	DFT · PBE
↳	4.476 range 2.765–6.187median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.053	-	DFT · OptB88vdW
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.01092	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000902	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00216	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-138.4	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	414.8	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	5.180	%	DFT · TBmBJ

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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.00130	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-2.982	eV/atom	DFT · OptB88vdW
↳	-3.080	eV/atom	Measured

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.

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.

LiAlO2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental