FeCo2Si

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
PropertyValueUnitConditionsSource
Bulk Modulus(K)2 entries
201.7
GPa
201.7
GPa
Elastic Compliance Tensor(Sij)
Matrix (redacted)
1/GPa
Elastic Anisotropy(AU)
1.073
-
Elastic Stiffness Tensor(Cij)
Matrix (redacted)
Pa
Poisson's Ratio(ν)
0.3051
-
Shear Modulus(G)2 entries
90.35
GPa
90.35
GPa
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.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
7.550
kg/m³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)2 entries
0.000
eV
0.000
eV
Magnetic Moment(μB)
5.106
µB
Seebeck Coefficient(S)
22.20
µV/K
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.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.02690
eV/atom
Formation Energy(ΔHf)3 entries
-0.3980
eV/atom
-0.3980
eV/atom
-0.2744
eV/atom
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.
Verified Unverified Low confidence (<80%) Link to source

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.