TaAsO4

ceramic

· TaAsO4

TaAsO4 is a tantalum arsenate ceramic compound that belongs to the family of complex oxide ceramics with potential for specialized high-performance applications. This material is primarily of research interest rather than established in widespread commercial production, with investigation focused on its thermal stability, chemical durability, and structural properties for niche engineering domains. Engineers would consider this compound for applications requiring a dense ceramic with resistance to corrosive environments or elevated-temperature stability, though availability and cost may limit its adoption compared to more conventional ceramic alternatives.

high-temperature ceramic coatingscorrosion-resistant refractoriesresearch and developmentspecialty chemical applicationsadvanced ceramics research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	13,356.5	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2500	-	DFT · OptB88vdW
Shear Modulus(G)	8,077.2	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.2408	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.742	eV	DFT · OptB88vdW
↳	4.714	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)	30.84	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	5.631	-	DFT · OptB88vdW
↳	3.751	-	DFT · TBmBJ
Electron Effective Mass(m*e)	2.183	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.147	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.4213	C/m²	DFT · OptB88vdW
↳	1.179	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00139	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00138	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-320.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	255	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.07640	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.228	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.

TaAsO4 — Properties & Data | MatWorld

TaAsO4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental