Tb3NbO7 — Properties & Data | MatWorld

Tb3NbO7

ceramic

· JVASP-49804· Tb3NbO7

Tb3NbO7 is a rare-earth niobate ceramic compound combining terbium oxide with niobium pentoxide, belonging to the family of complex perovskite and pyrochlore-structured oxides. This material is primarily of research and development interest for high-temperature applications and advanced functional ceramics, where its rare-earth content and refractory properties position it as a candidate for thermal barrier coatings, solid-state electrolytes, and specialized optical or photocatalytic devices. While not yet widely commercialized, compounds in this material family are investigated for their potential to outperform conventional ceramics in extreme environments and as enablers for next-generation energy conversion systems.

high-temperature ceramicsthermal barrier coatingssolid electrolytesphotocatalysis researchrare-earth oxide compoundsrefractory applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	7.505	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	2.624	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	5.108	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	2.360	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.610	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00122	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00101	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-288.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	309.9	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)	0.00310	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.546	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.

Tb3NbO7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental