HeSb5

ceramic

· JVASP-132775· HeSb5

HeSb5 is an intermetallic ceramic compound in the rare-earth pnictide family, combining helium-like bonding characteristics with antimony in a defined stoichiometric ratio. This material remains largely in the research and development phase, with investigation focused on understanding its electronic and thermal properties for potential thermoelectric and high-temperature structural applications. Its primary appeal lies in exploring novel intermetallic phases that may offer improved performance in demanding thermal environments where conventional ceramics or metallic alloys reach their limits.

thermoelectric researchhigh-temperature materials developmentintermetallic compoundssolid-state physicsexperimental semiconductorsmaterials characterization

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	5.326	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)	0.2227	eV/atom	—
Formation Energy(ΔHf)	0.2203	eV/atom	—

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

Regulatory Screening

Environmental

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.

HeSb5

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental