CoSi2

Name: CoSi2
Brand: MatWorld

metal

· CoSi2

Cobalt disilicide (CoSi₂) is an intermetallic compound combining cobalt and silicon, belonging to the family of transition metal silicides. It is primarily used in semiconductor and microelectronic applications as a contact material and silicide layer, where its low electrical resistivity and compatibility with silicon processing make it valuable for reducing contact resistance in integrated circuits. CoSi₂ is also explored in high-temperature structural applications and thermoelectric devices due to its thermal stability and metallic bonding characteristics, offering advantages over pure metals in scenarios requiring both electrical conductivity and resistance to oxidation.

semiconductor contactsintegrated circuit interconnectshigh-temperature structural coatingsthermoelectric materialsVLSI processingmetal-silicon junctions

Compliance & Regulations

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

Units:

si imperial

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Method

Property	Value	Unit	Conditions
Bulk Modulus(K)3 entries	25,658.9	ksi	DFT
↳	24,855.1	ksi	DFT · OptB88vdW
↳	25,658.9	ksi	DFT · PBE
Elastic Compliance Tensor(Sij)	Matrix (redacted)	1/GPa	DFT · PBE
Elastic Anisotropy(AU)	0.5861	-	DFT · PBE
Elastic Stiffness Tensor(Cij)	Matrix (redacted)	ksi	DFT · PBE
Poisson's Ratio(ν)2 entries	0.3300	-	DFT · OptB88vdW
↳	0.3378	-	DFT · PBE
Shear Modulus(G)3 entries	9,334.6	ksi	DFT
↳	9,752.3	ksi	DFT · OptB88vdW
↳	9,334.6	ksi	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.

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1767	lb/in³	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	0.000146	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.000142	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	4.220	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	4.160	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

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.000	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.3690	eV/atom	DFT · OptB88vdW
↳	-0.3617	eV/atom	Measured

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

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.

CoSi2 — Properties & Data | MatWorld

CoSi2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

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