TaCrO4 — Properties & Data | MatWorld

TaCrO4

ceramic

· TaCrO4

TaCrO4 is a tantalum chromium oxide ceramic compound that combines the high-temperature stability of tantalum oxides with chromium's oxidation resistance. While not a widely commercialized material, it belongs to the family of refractory oxide ceramics studied for extreme-environment applications where conventional ceramics fall short. This compound is primarily of research interest for potential use in aerospace thermal protection systems, high-temperature catalytic applications, and corrosion-resistant coatings where the synergistic properties of both constituent oxides could provide enhanced performance compared to single-phase alternatives.

High-temperature ceramics (research)Aerospace thermal protectionRefractory oxidesCorrosion-resistant coatingsCatalytic substrates

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	229.7	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.3000	-	DFT · OptB88vdW
Shear Modulus(G)	124.4	GPa	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	7.466	kg/m³	DFT · OptB88vdW

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

Filter by

Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	1.007	eV	DFT · OptB88vdW
Dielectric Constant (Relative Permittivity)(εr)	30.50	-	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	101.9	-	DFT · OptB88vdW
Electron Effective Mass(m*e)	2.133	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	2.217	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	3.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)2 entries	0.04854	C/m²	DFT · OptB88vdW
↳	0.4328	C/m²	DFT · PBE
Piezoelectric Stress Tensor(eij)	Matrix (redacted)	C/m²	DFT · PBE
Thermoelectric Power Factor(PF)2 entries	0.00149	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000761	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-352.8	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	287.4	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)	0.03030	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.644	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.

TaCrO4

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental