Ta3O7F — Properties & Data | MatWorld

Ta3O7F

ceramic

· JVASP-50802· Ta3O7F

Ta3O7F is a tantalum-based oxide fluoride ceramic compound that combines tantalum pentoxide with fluorine, creating a mixed-anion ceramic with potential for high-temperature and chemically demanding applications. This material belongs to the family of advanced refractory ceramics and fluoride-containing oxides, which are primarily explored in research settings for applications requiring simultaneous thermal stability and chemical resistance. The incorporation of fluorine into tantalum oxide structures can modify properties such as thermal conductivity, ionic conductivity, and corrosion resistance compared to conventional oxide ceramics, making it of interest in electrolyte systems, high-temperature coatings, and specialized chemical processing environments.

experimental refractory ceramicshigh-temperature coatingssolid-state electrolyteschemical corrosion resistancefluoride-containing compositesadvanced ceramic research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	8.245	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.377	eV	DFT · OptB88vdW
↳	3.546	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.686	-	DFT · OptB88vdW
↳	4.369	-	DFT · TBmBJ
Electron Effective Mass(m*e)	0.5667	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.593	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00274	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000998	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-206.1	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	333.2	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	1.100	%	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)	-3.097	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.

Ta3O7F

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental