Ho5Si3

ceramic

· Ho5Si3

Ho5Si3 is an intermetallic ceramic compound composed of holmium and silicon, belonging to the rare-earth silicide family. This material is primarily of research and developmental interest, studied for potential applications requiring high-temperature stability and unique thermal properties characteristic of rare-earth intermetallics. Ho5Si3 represents an emerging material class where engineers investigate performance in extreme environments where conventional ceramics or metals reach their limits.

high-temperature structural applicationsrare-earth intermetallic researchthermal barrier coatings (experimental)nuclear and aerospace environmentsadvanced ceramics developmentmaterials science research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	7.857	kg/m³	—

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

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	0.000	eV	—
Seebeck Coefficient(S)	-44.48	µV/K	—

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

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	—
Formation Energy(ΔHf)2 entries	-0.7732	eV/atom	—
↳	-0.6937	eV/atom	—

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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.

Ho5Si3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental