NpAl2

metal

· JVASP-17787· NpAl2

NpAl2 is an intermetallic compound combining neptunium and aluminum, belonging to the rare earth and actinide intermetallic family. This material exists primarily within nuclear materials research and specialized defense applications where neptunium-bearing alloys are studied for their unique physical and thermal properties. NpAl2 represents an experimental compound of interest in fundamental materials science rather than a conventional engineering material with broad commercial use.

nuclear materials researchactinide metallurgyhigh-density structural compositesdefense research applicationsadvanced fuel developmentradiological containment systems

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	11,250.6	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.1800	-	DFT · OptB88vdW
Shear Modulus(G)	9,273.7	ksi	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2976	lb/in³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	8.527	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000300	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000290	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	21.01	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	20.65	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.2602	eV/atom	DFT · OptB88vdW

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

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.

NpAl2 — Properties & Data | MatWorld

NpAl2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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Environmental

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