Ho3TaO7 — Properties & Data | MatWorld

Ho3TaO7

ceramic

· JVASP-97836· Ho3TaO7

Ho3TaO7 is a rare-earth transition metal oxide ceramic compound combining holmium and tantalum in a mixed-valent oxide structure. This material belongs to the family of refractory oxides and pyrochlore-related compounds, which are of primary interest in high-temperature applications and solid-state chemistry research. As a relatively specialized compound, Ho3TaO7 is primarily investigated for advanced ceramic applications where thermal stability, chemical inertness, and tailored electronic properties are critical, though industrial adoption remains limited compared to more established refractory ceramics.

High-temperature refractory ceramicsThermal barrier coatings (research)Solid electrolytes (emerging)Nuclear/extreme environment materialsOptical and photonic materials (research)

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.3238	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	3.445	eV	DFT · OptB88vdW
↳	4.555	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	3.693	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.690	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.

Ho3TaO7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental