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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	9.734	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)	0.00680	eV/atom	—
Formation Energy(ΔHf)	-0.5683	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

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental