ErCuSi

metal
· JVASP-16019· ErCuSi

ErCuSi is an intermetallic compound combining erbium, copper, and silicon, belonging to the rare-earth metal alloy family. This material is primarily of research and developmental interest, investigated for potential applications requiring the combined properties of rare-earth elements with transition metals—including enhanced mechanical strength, thermal stability, and specialized electromagnetic or magnetic properties. Engineers would consider this compound for advanced applications where rare-earth strengthening mechanisms or unique phase stability at elevated temperatures provide advantages over conventional engineering alloys, though commercial availability and cost typically limit deployment to specialized or prototype-stage projects.

rare-earth intermetallic compoundshigh-temperature structural applicationsresearch and development materialsmagnetic or electromagnetic devicesspecialty aerospace or defense prototypingmaterials with enhanced phase stability

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
103.3
GPa—
Poisson's Ratio(ν)
0.2500
-—
Shear Modulus(G)
62.59
GPa—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
7.863
kg/m³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV—
Magnetic Moment(μB)
0.000
µB—
Seebeck Coefficient(S)
-24.33
µV/K—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.000
eV/atom—
Formation Energy(ΔHf)
-0.6632
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.