Er2Fe4Si9
metal· JVASP-146696· Er2Fe4Si9
Er₂Fe₄Si₉ is an intermetallic compound combining erbium (a rare-earth element), iron, and silicon. This material belongs to the family of rare-earth iron silicides, which are primarily of research and development interest rather than established commercial use. Er₂Fe₄Si₉ and related compounds in this family are investigated for potential applications in high-temperature structural materials, permanent magnets, and thermoelectric devices, where the combination of rare-earth and transition-metal constituents can provide unusual magnetic, thermal, or electronic properties that may outperform conventional alternatives in specialized niches.
high-temperature structural applicationspermanent magnet researchthermoelectric materialsrare-earth intermetallic compoundsmaterials science researchadvanced ceramics and composites
Compliance & Regulations
?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | kg/m³ | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | — | eV | — | — | |
Magnetic Moment(μB) | — | µB | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Energy Above Hull(ΔEhull) | — | eV/atom | — | — | |
Formation Energy(ΔHf) | — | eV/atom | — | — |
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.