Li2SiO3 — Properties & Data | MatWorld

Li2SiO3

Name: Li2SiO3
Brand: MatWorld

ceramic

· Li2SiO3

Lithium silicate (Li2SiO3) is an inorganic ceramic compound combining lithium oxide with silica, belonging to the silicate ceramic family. While primarily encountered in research and materials development contexts rather than high-volume industrial production, this compound is investigated for applications requiring low thermal expansion, chemical durability, or specialized optical properties. Li2SiO3 represents the broader class of lithium silicates used in advanced ceramics, glass-ceramics, and lithium-based functional materials where its unique lithium incorporation offers potential advantages in thermal stability or electrochemical applications.

Glass-ceramic developmentThermal management materialsResearch ceramicsLow-expansion applicationsLithium compound research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	80.31	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2300	-	DFT · OptB88vdW
Shear Modulus(G)	54.03	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.515	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)	5.507	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)2 entries	7.289	-	DFT · OptB88vdW
↳	4.529 range 2.702–6.356median of 2 measurements	-	DFT · PBEsol
High-Frequency Dielectric Constant (ε∞)(ε∞)	2.743	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	0.7833	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	3.000	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.3317	C/m²	DFT · OptB88vdW
↳	1.184	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00107	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00126	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-165.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	396.4	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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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-2.713	eV/atom	DFT · OptB88vdW
↳	-2.849	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.

Li2SiO3

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental