Er2Al3Si2 — Properties & Data | MatWorld

Er2Al3Si2

metal

· JVASP-16694· Er2Al3Si2

Er2Al3Si2 is an intermetallic compound combining erbium (a rare earth element), aluminum, and silicon into a ordered crystalline phase. This material belongs to the family of rare-earth aluminum silicides, which are primarily of research and developmental interest rather than established industrial production. Er2Al3Si2 is investigated for high-temperature structural applications and as a reinforcement phase in composite materials, where its stiffness and thermal stability are of interest; however, limited commercial availability and processing challenges restrict its current use to experimental aerospace and advanced materials research contexts.

High-temperature composites (experimental)Aerospace research and developmentRare-earth intermetallic compoundsComposite reinforcement phasesMaterials researchThermal-mechanical property studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	12,645.8	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2100	-	DFT · OptB88vdW
Shear Modulus(G)	9,315.8	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2134	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000498	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000443	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	10.12	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	9.303	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)	-0.5284	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

Export Control

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.

Er2Al3Si2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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