HoHO2

ceramic
· HoHO2

HoHO₂ is a holmium-based oxide ceramic compound belonging to the rare-earth oxide family. While not commonly encountered in mainstream engineering, this material represents the rare-earth ceramic materials class, which has gained research interest for high-temperature applications and specialized optical or electronic functions. The specific industrial adoption and performance advantages of HoHO₂ relative to competing rare-earth oxides remain limited in published engineering practice, suggesting this may be a research-phase or emerging material with potential applications in extreme environments.

high-temperature ceramicsrare-earth applicationsrefractory materialsoptical/photonic researchmaterials research & development

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
PropertyValueUnitConditionsSource
Bulk Modulus(K)
14,422.6
ksi
Poisson's Ratio(ν)
0.3100
-
Shear Modulus(G)
6,525.2
ksi
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
0.2483
lb/in³
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
4.832
eV
Dielectric Constant (Relative Permittivity)(εr)
13.05
-
Magnetic Moment(μB)
0.000
µB
Piezoelectric Modulus(eij)2 entries
0.9627
C/m²
0.000
C/m²
Piezoelectric Stress Tensor(eij)
Matrix (redacted)
C/m²
Seebeck Coefficient(S)
-97.90
µV/K
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.
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.03360
eV/atom
Formation Energy(ΔHf)
-2.802
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.
HoHO2 — Properties & Data | MatWorld