Bi5W

metal

· JVASP-123862· Bi5W

Bi5W is an intermetallic compound composed primarily of bismuth and tungsten, belonging to the family of refractory metal-bismuth systems. This material is primarily of research and specialized industrial interest, valued for applications requiring high density, thermal management in electronics, and potential use in radiation shielding where bismuth's nuclear properties are leveraged with tungsten's refractory characteristics. Compared to conventional lead-based or depleted uranium alternatives, Bi5W offers environmental and regulatory advantages while maintaining effective shielding performance in compact geometries.

radiation shieldingthermal managementelectronic packaginghigh-density applicationsresearch alloysaerospace components

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	11.80	kg/m³	—

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)	0.6262	eV/atom	—
Formation Energy(ΔHf)	0.5334	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.

Bi5W

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental

Export Control