TaCoSb — Properties & Data | MatWorld

TaCoSb

metal

· TaCoSb

TaCoSb is an intermetallic compound composed of tantalum, cobalt, and antimony, belonging to the family of refractory metal-based alloys. This material is primarily of research interest for high-temperature structural applications and thermoelectric systems, where the combination of a refractory metal base with transition metal and pnictogen elements offers potential for enhanced mechanical stability and electronic properties at elevated temperatures. While not yet widely deployed in mainstream engineering, compounds in this material family are investigated for aerospace thermal management, next-generation power generation systems, and applications requiring materials that maintain performance in extreme thermal environments.

High-temperature structural applicationsThermoelectric devicesAerospace thermal systemsRefractory alloy researchAdvanced energy conversion

Compliance & Regulations

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

Units:

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	163.3	GPa	DFT
↳	164.4	GPa	DFT · OptB88vdW
↳	163.3	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.2589	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.3400	-	DFT · OptB88vdW
↳	0.3330	-	DFT · PBE
Shear Modulus(G)3 entries	61.36	GPa	DFT
↳	58.90	GPa	DFT · OptB88vdW
↳	61.36	GPa	DFT · PBE

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
Density(ρ)	11.26	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	1.191	eV	DFT · TBmBJ
High-Frequency Dielectric Constant (ε∞)(ε∞)	33.84	-	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00206	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00216	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-25.73	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-26.45	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	33.72	%	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)	0.1156	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.1017	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

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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.

TaCoSb

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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