Al2Si4O11 — Properties & Data | MatWorld

Al2Si4O11

Name: Al2Si4O11
Brand: MatWorld

ceramic

· JVASP-12160· Al2Si4O11

Al2Si4O11 is a layered aluminosilicate ceramic belonging to the feldspar and clay mineral family, characterized by a sheet-like crystal structure with weak interlayer bonding. This material is primarily of research interest for applications requiring low exfoliation energy and controlled layer separation, with potential use in thermal insulation, advanced composites, and nanostructured ceramics where layer delamination can be engineered. Engineers would consider this compound when designing lightweight refractory systems, composite precursors, or functional ceramics that benefit from anisotropic properties and the ability to generate thin sheets or exfoliated architectures.

thermal insulation systemscomposite reinforcement precursorsexfoliated ceramic architectureslightweight refractorieslayer-engineered ceramicsresearch-phase advanced materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Exfoliation Energy(Eexf)	25.86	meV/atom	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	2.536	kg/m³	DFT · OptB88vdW

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

Filter by

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	4.289	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	5.517	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	2.508	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000717	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000188	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-116.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	339.4	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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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.04960	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.978	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.

Al2Si4O11

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental