Cobalt Thin Film Disk (Mylar® Backing)

Cobalt Thin Film Disk is a precision-engineered substrate with a uniform cobalt-based magnetic layer, optimized for high-density data storage and specialized magnetic applications. It exhibits excellent magnetic coercivity control, wear resistance, and structural stability, making it an essential component in modern magnetic recording media, high-frequency resonators, and spintronic device research. Industries such as data storage, advanced electronics, and sensor technology rely on cobalt thin films for applications like hard disk platters, magnetic read/write heads, and next-generation memory devices. Its fine control over grain structure and magnetic orientation enhances recording stability and efficiency, enabling reliable operation in demanding environments. In research, Cobalt Thin Film Disk provides a platform for studying nanoscale magnetic phenomena and testing novel magnetic alloys. Its precise performance characteristics make it a critical material in both industrial production and fundamental magnetic materials research.

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Tolerance

Properties

Reference & Citations

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