CoSn2 — Properties & Data | MatWorld

CoSn2

metal

· CoSn2

CoSn2 is an intermetallic compound formed from cobalt and tin, belonging to the family of binary metallic intermetallics. It exhibits moderate elastic stiffness with notable anisotropic behavior, making it relevant for specialized applications where intermetallic phases contribute to overall alloy performance rather than serving as a primary structural material. This compound is typically encountered as a constituent phase in tin-based solder systems, coating materials, and high-temperature alloys, where its presence influences mechanical properties and thermal stability of the bulk material.

solder joint phasestin-based coatingselectronic packagingthermal barrier materialswear-resistant compositeshigh-temperature intermetallic research

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	101.2	GPa	DFT
↳	97.82	GPa	DFT · OptB88vdW
↳	101.2	GPa	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.3390	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	Pa	DFT · PBE
Poisson's Ratio(ν)2 entries	0.2800	-	DFT · OptB88vdW
↳	0.2711	-	DFT · PBE
Shear Modulus(G)3 entries	54.65	GPa	DFT
↳	52.33	GPa	DFT · OptB88vdW
↳	54.65	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)	8.765	kg/m³	DFT · OptB88vdW

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	DFT · OptB88vdW
↳	0.000	eV	DFT · TBmBJ
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.000148	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000153	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	5.993	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	6.143	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)	0.03690	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.02788	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.

CoSn2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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