FeAs — Properties & Data | MatWorld

FeAs

metal

· FeAs

FeAs is an iron-arsenic intermetallic compound that belongs to the class of binary metal systems with potential applications in semiconductor and thermoelectric research. While not widely used in conventional structural engineering, FeAs and related iron-pnictide compounds have attracted significant scientific interest as precursors to high-temperature superconductors and as candidates for advanced functional materials. Engineers considering this material should recognize it primarily as a research-phase compound rather than an established commercial alloy, valuable for exploratory work in materials science rather than conventional load-bearing or commodity applications.

superconductor researchthermoelectric devicessemiconductor studiesiron-pnictide systemshigh-temperature materials researchfunctional materials development

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	23,617.8	ksi	DFT
↳	23,475.8	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2900	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	11,736.4	ksi	DFT
↳	12,109.2	ksi	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.

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Property	Value	Unit	Conditions	Source
Density(ρ)	0.2893	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)	1.923	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000384	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000379	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-16.69	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-16.87	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.00380	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.1861	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

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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.

FeAs

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