HoHO2 — Properties & Data | MatWorld

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	99.44	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3100	-	DFT · OptB88vdW
Shear Modulus(G)	44.99	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	6.874	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	4.182	eV	DFT · OptB88vdW
↳	6.267	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	13.05	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.817	-	DFT · OptB88vdW
↳	3.094	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.000	C/m²	DFT · OptB88vdW
↳	0.9627	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	DFT · TBmBJ

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.03360	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.802	eV/atom	DFT · OptB88vdW

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

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

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

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental