Lu3TaO7 — Properties & Data | MatWorld

Lu3TaO7

ceramic

· JVASP-52530· Lu3TaO7

Lu3TaO7 is a rare-earth tantalum oxide ceramic compound combining lutetium (the heaviest lanthanide) with tantalum pentoxide in a pyrochlore-related structure. This is a research and development material investigated for high-temperature applications and advanced ceramic systems, particularly in contexts requiring exceptional thermal stability, chemical inertness, and the unique properties afforded by rare-earth doping in oxide ceramics.

high-temperature structural ceramicsthermal barrier coatings (research)refractory materialssolid-state electrolytes (development)aerospace thermal protection (experimental)electronic ceramics and substrates

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	9.894	kg/m³	DFT · OptB88vdW

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

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	3.443	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	4.748	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000941	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00113	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-342.3	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	268.7	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.04820	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.682	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.

Lu3TaO7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental