Er2Nb2O7 — Properties & Data | MatWorld

Er2Nb2O7

ceramic

· JVASP-50457· Er2Nb2O7

Er₂Nb₂O₇ is a rare-earth niobate ceramic compound combining erbium oxide with niobium pentoxide, belonging to the family of pyrochlore-structured oxides. This material is primarily of research and developmental interest for high-temperature applications, particularly in thermal barrier coatings and advanced refractory systems where its rare-earth constituent provides improved thermal stability and oxidation resistance compared to conventional zirconia-based alternatives. Its potential in aerospace and power generation contexts stems from the pyrochlore family's ability to withstand extreme temperatures while maintaining structural integrity, though practical industrial adoption remains limited to specialized high-performance applications.

thermal barrier coatingshigh-temperature refractoriesadvanced ceramics researchaerospace thermal protectionrare-earth oxide systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	7.694	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000331	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000377	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	33.12	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	34.88	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)	0.07580	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.209	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.

Er2Nb2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental