Ta2O — Properties & Data | MatWorld

Ta2O

ceramic

· JVASP-34887· Ta2O

Ta₂O is a tantalum oxide ceramic compound that exists as a lower-valence intermediate in the tantalum oxide system, distinct from the more common Ta₂O₅. This material is primarily of research and materials science interest rather than a widely commercialized engineering ceramic, with potential applications in electronic and refractory contexts where tantalum's chemical stability and high density are advantageous.

experimental ceramics researchrefractory materials developmentelectronic oxide compoundsthin-film applicationshigh-density ceramic matricestantalum chemistry studies

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	11.83	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	0.0000432	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000366	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	5.800	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	5.340	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)	1.752	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	0.3321	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.

Ta2O

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental