FeCo2Si — Properties & Data | MatWorld

FeCo2Si

Name: FeCo2Si
Brand: MatWorld

metal

· FeCo2Si

FeCo2Si is an iron-cobalt-silicon intermetallic compound belonging to the class of ferromagnetic metals and alloys. This material is primarily investigated for soft magnetic applications where high saturation magnetization, low coercivity, and excellent magnetic permeability are required. It is used or evaluated in electromagnetic devices, magnetic cores, and high-frequency inductive components where the combination of iron and cobalt provides enhanced magnetic properties compared to conventional iron-silicon alloys, while silicon addition improves electrical resistivity to reduce eddy current losses.

soft magnetic coreselectromagnetic deviceshigh-frequency inductorstransformer laminationsmagnetic sensorsresearch/development materials

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)2 entries	29,252.8	ksi	DFT
↳	29,252.8	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	1.073	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)	0.3051	-	DFT · PBE
Shear Modulus(G)2 entries	13,104.2	ksi	DFT
↳	13,104.2	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.

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Property	Value	Unit	Conditions	Source
Density(ρ)	0.2728	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)	5.106	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00142	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00143	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	22.20	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	22.23	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

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.02690	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)3 entries	-0.2744	eV/atom	DFT · OptB88vdW
↳	-0.3980	eV/atom	Measured
↳	-0.3980	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

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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.

FeCo2Si

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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