Fe3Si

Name: Fe3Si
Brand: MatWorld

metal

· Fe3Si

Fe3Si is an iron-silicon intermetallic compound that belongs to the family of transition metal silicides. This material is primarily of research and development interest for applications requiring high-temperature strength and oxidation resistance, particularly in aerospace and power generation sectors where conventional iron alloys reach their performance limits. Fe3Si exhibits notable elastic properties with high stiffness, making it a candidate for advanced structural applications, though its brittleness and processing challenges have limited widespread commercial adoption compared to nickel-based superalloys.

high-temperature structural componentsaerospace engine applicationsoxidation-resistant coatingsintermetallic research materialswear-resistant wear surfacesadvanced alloy development

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	30,730.2	ksi	DFT
↳	32,183.9	ksi	DFT · OptB88vdW
↳	30,730.2	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	1.550	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)	0.3090	-	DFT · PBE
Shear Modulus(G)3 entries	13,451.2	ksi	DFT
↳	5,717.4	ksi	DFT · OptB88vdW
↳	13,451.2	ksi	DFT · PBE

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)	0.2680	lb/in³	DFT · OptB88vdW

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

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)3 entries	0.000	eV	Measured
↳	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	4.666	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000157	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000198	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-2.370	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-2.660	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)	0.08730	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.1782	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.

Fe3Si — Properties & Data | MatWorld

Fe3Si

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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Environmental

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