BeNiBi2

metal

· JVASP-74662· BeNiBi2

BeNiBi₂ is an intermetallic compound composed of beryllium, nickel, and bismuth, belonging to the class of ternary metal systems. This is a research-phase material with limited industrial deployment; it represents exploration within the beryllium-nickel alloy family for potential structural or functional applications where unusual elastic properties may be advantageous. The notably negative Poisson's ratio suggests auxetic behavior—a rare characteristic where the material expands laterally under tension—making it of scientific interest for specialized damping, acoustic, or load-distribution applications.

experimental intermetallic compoundsauxetic material researchdamping and vibration controlhigh-density structural explorationaerospace materials developmentmaterials science fundamental studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	4,538.2	ksi	—
Poisson's Ratio(ν)	-0.7900	-	—
Shear Modulus(G)	1,198	ksi	—

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3561	lb/in³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Magnetic Moment(μB)	0.000	µB	—

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.7966	eV/atom	—
Formation Energy(ΔHf)	0.5629	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.

BeNiBi2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control