YTa3O9 — Properties & Data | MatWorld

YTa3O9

ceramic

· JVASP-52504· YTa3O9

YTa3O9 is a yttrium tantalum oxide ceramic compound belonging to the family of rare-earth tantalates, which are typically investigated for high-temperature structural and functional applications. This material is primarily of research and development interest rather than established production use, with potential applications in thermal barrier coatings, refractory linings, and high-temperature electronics where chemical stability and thermal properties are critical. Engineers would consider this compound in advanced aerospace or industrial furnace contexts where conventional ceramics reach performance limits, though material maturity and cost-benefit analysis against established alternatives like yttria-stabilized zirconia would be necessary before specification.

thermal barrier coatingshigh-temperature refractoriesaerospace structural ceramicsadvanced electronics substrateswear-resistant components

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2844	lb/in³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	3.447	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	5.497	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00146	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000549	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-293.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	391.5	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)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-3.265	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.

YTa3O9

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental