Tb2Pb2O7 — Properties & Data | MatWorld

Tb2Pb2O7

ceramic

· JVASP-46079· Tb2Pb2O7

Tb2Pb2O7 is a rare-earth lead oxide ceramic compound belonging to the pyrochlore family of oxides. This material is primarily investigated in research settings for its potential applications in high-temperature dielectrics, thermal barrier coatings, and advanced ceramic composites where rare-earth dopants provide enhanced thermal stability and oxidation resistance. Terbium-based oxides are of particular interest for applications requiring controlled thermal properties and chemical stability at elevated temperatures, though Tb2Pb2O7 remains largely experimental and has not achieved widespread commercial adoption compared to more established rare-earth ceramic systems.

thermal barrier coatings (research)high-temperature dielectricsrare-earth ceramic compositesadvanced refractory materialsexperimental electronics applications

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	8.983	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	1.040	eV	DFT · OptB88vdW
↳	1.926	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.977	-	DFT · OptB88vdW
↳	4.245	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.3000	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.330	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000530	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00171	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-92.13	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	396.9	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	24.58	%	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.

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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.292	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.

Tb2Pb2O7

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental