Cobalt Thin Film Disk

Formula: Co

Form: Thin Film

Material: Cobalt

CAS Number: 7440-48-4

Commodity: Metals

Purity: 99.9%

Support: Permanent Mylar® 3.5µm

Hazard Pictogram: GHS07,GHS08

Cobalt Mylar® thin film disks are part of Goodfellow's range of thin films, with 7 variations available. These disks consist of a layer of cobalt deposited on polyester film. The cobalt layer provides properties like ferromagnetism, high permeability, and moderate electrical conductivity. Potential applications include use as a magnetic shielding material, an element in sensors/transducers, or for EMI shielding in electrical components.

Wishlist

Technical Data Sheet Safety Data Sheet Tolerance Properties

Health hazard/Hazardous to the ozone layer

Serious health hazard

each

Tolerances

Thin Film

Thickness		±30%

Disk

Diameter		±20%

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	27
Crystal structure	Hexagonal close packed
Electronic structure	Ar 3d⁷ 4s²
Valences shown	2, 3
Atomic weight( amu )	58.9332
Thermal neutron absorption cross-section( Barns )	37.5
Photo-electric work function( eV )	5
Atomic radius - Goldschmidt( nm )	0.125
Ionisation potential( No./eV )	2/ 17.06
Ionisation potential( No./eV )	4/ 51.3
Ionisation potential( No./eV )	3/ 33.5
Ionisation potential( No./eV )	1/ 79.5
Ionisation potential( No./eV )	1/ 79.5
Ionisation potential( No./eV )	6/ 102

Mechanical Properties

Element	Value
Material condition	Hard
Material condition	Soft
Poisson's ratio	0.32
Poisson's ratio	0.32
Bulk modulus( GPa )	181.5
Bulk modulus( GPa )	181.5
Tensile modulus( GPa )	211
Tensile modulus( GPa )	211
Hardness - Vickers( kgf mm⁻² )	320
Hardness - Vickers( kgf mm⁻² )	170
Tensile strength( MPa )	1135
Tensile strength( MPa )	760
Yield strength( MPa )	345-485

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	6.34@20@20°C
Temperature coefficient( K⁻¹ )	0.0066@0-100°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	-1.33

Physical Properties

Element	Value
Boiling point( C )	2870
Density( gcm⁻³ )	8.9@20°C

Thermal Properties

Element	Value
Melting point( C )	1495
Latent heat of evaporation( J g⁻¹ )	6490
Latent heat of fusion( J g⁻¹ )	263
Specific heat( J K⁻¹ kg⁻¹ )	456@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	100@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	12.5@0-100°C

Services

Applications

170k+ products

No minimum order

Free delivery worldwide*

Cobalt Thin Film Disk

Health hazard/Hazardous to the ozone layer

Serious health hazard

Tolerances

Material Properties for Metals