CoAs2 — Properties & Data | MatWorld

CoAs2

metal

· CoAs2

CoAs2 is an intermetallic compound combining cobalt and arsenic, belonging to the family of transition metal pnictides. This material exhibits notable mechanical stiffness and is primarily of research and specialized industrial interest rather than a commodity material. CoAs2 and related cobalt arsenides are investigated for applications in thermoelectric devices, magnetic materials, and high-temperature structural applications, where its density and elastic properties offer potential advantages in niche engineering contexts.

thermoelectric deviceshigh-temperature alloysmagnetic materials researchspecialized aerospace componentselectronic material substratesmaterials science research

Compliance & Regulations

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

Units:

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)2 entries	131.8	GPa	DFT
↳	130.4	GPa	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2200	-	DFT · OptB88vdW
Shear Modulus(G)2 entries	89.32	GPa	DFT
↳	95.57	GPa	DFT · OptB88vdW

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)	7.286	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.08400	eV	DFT · OptB88vdW
High-Frequency Dielectric Constant (ε∞)(ε∞)	35.94	-	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00217	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000402	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-182.9	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	84.75	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.

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

Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3035	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

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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.

CoAs2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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