NpNi5

metal
· JVASP-35361· NpNi5

NpNi5 is an intermetallic compound combining neptunium and nickel, representing a specialized actinide-based metallic material primarily of scientific and research interest rather than established commercial use. This material belongs to the family of actinide intermetallics and is studied for its unique electronic and mechanical properties, which differ significantly from conventional engineering alloys. Research on NpNi5 contributes to understanding actinide metallurgy and intermetallic phase behavior, with potential relevance to advanced nuclear fuel cycles and specialized high-performance applications requiring exceptional density and stiffness, though practical engineering adoption remains limited due to actinide handling requirements and regulatory constraints.

nuclear research applicationsactinide metallurgy studiesintermetallic phase researchhigh-density structural materials (research)materials characterization (academic/laboratory)

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
26,034.3
ksi—
Poisson's Ratio(ν)
0.3200
-—
Shear Modulus(G)
10,854.6
ksi—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.4031
lb/in³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
0.000
eV—
Magnetic Moment(μB)
0.00700
µB—
Seebeck Coefficient(S)
2.830
µV/K—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.000
eV/atom—
Formation Energy(ΔHf)
-0.1255
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.
NpNi5 — Properties & Data | MatWorld