UAl4

metal

· UAl4

UAl4 is an intermetallic compound in the uranium-aluminum system, representing a high-density metallic phase with significant stiffness. This material is primarily of research and specialized nuclear/aerospace interest rather than widespread commercial use, as uranium-based intermetallics are restricted by regulatory oversight and material brittleness. Engineers consider UAl4 in contexts requiring high density and stiffness in compact form, such as radiation shielding, counterweights, or specialized high-energy physics applications, though practical deployment remains limited by uranium's handling requirements, toxicity regulations, and availability constraints.

radiation shieldingresearch counterweightshigh-density ballastnuclear materials researchaerospace structural researchspecialized actinide studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	12,010.6	ksi	—
Poisson's Ratio(ν)	0.2500	-	—
Shear Modulus(G)	7,372.3	ksi	—

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2182	lb/in³	—

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

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	—
↳	0.000	eV	—
Magnetic Moment(μB)	5.154	µB	—

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.

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

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.00200	eV/atom	—
Formation Energy(ΔHf)2 entries	-0.2705	eV/atom	—
↳	-0.1144	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, or test environment.

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.

UAl4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control