HoB4Rh4

ceramic
· JVASP-63509· HoB4Rh4

HoB₄Rh₄ is a quaternary ceramic boride compound combining holmium, boron, and rhodium elements. This is a specialized research material within the rare-earth boride family, currently investigated for extreme-environment applications requiring high-temperature stability and resistance to thermal cycling; it remains primarily in exploratory development rather than established industrial production.

high-temperature ceramics (research)refractory applicationsaerospace/thermal protection (experimental)hard coatings (exploratory)rare-earth boride compounds

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Density(ρ)
lb/in³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
eV
Magnetic Moment(μB)
µB
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
eV/atom
Formation Energy(ΔHf)
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.
HoB4Rh4 — Properties & Data | MatWorld