Rigid Graphite Carbon Disk

Grade: Rigid Graphite

Formula: C

Form: Disk

Material: Carbon

CAS Number: 7440-44-0

Commodity: Metals

Purity: 99.95%

Grain Size: Fine

Rigid Graphite Carbon disks offer a versatile material known for its high strength, thermal conductivity and resistance to thermal shock. With these disks available in 5 sizes and thicknesses, they can be customized for applications like semiconductor wafer carriers, sputtering targets and vacuum chamber liners. The unique properties of graphite carbon allow Rigid Graphite Carbon disks to withstand repeated rapid temperature changes and diffusion processes.

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Technical Data Sheet Safety Data Sheet Tolerance Properties

each

Tolerances

Disk

Thickness	>0.05mm	±10%
Thickness	<0.01mm	±25%
Thickness	0.01mm - 0.05mm	±15%

Material Properties for Metals

Atomic Properties

Element	Value
Atomic number	6
Crystal structure	Hexagonal/Diamond
Electronic structure	He 2s² 2p²
Valences shown	2, 3, 4
Atomic weight( amu )	12.011
Thermal neutron absorption cross-section( Barns )	0.0034
Photo-electric work function( eV )	4.8
Natural isotope distribution( Mass No./% )	12/ 98.89
Natural isotope distribution( Mass No./% )	13/ 1.11
Atomic radius - Goldschmidt( nm )	0.077
Ionisation potential( No./eV )	6/ 490
Ionisation potential( No./eV )	4/ 64.5
Ionisation potential( No./eV )	1/ 11.26
Ionisation potential( No./eV )	3/ 47.9
Ionisation potential( No./eV )	2/ 24.38
Ionisation potential( No./eV )	5/ 392

Mechanical Properties

Element	Value
Hardness - Mohs	0.5-1
Hardness - Mohs	10
Material condition	Diamond
Material condition	Graphite
Bulk modulus( GPa )	33
Bulk modulus( GPa )	542
Tensile modulus( GPa )	4.8

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	1375@0@0°C
Thermal emf against Pt (cold 0C - hot 100C)( mV )	0.7

Physical Properties

Element	Value
Boiling point( C )	5000
Density( gcm⁻³ )	2.25@20°C

Thermal Properties

Element	Value
Melting point( C )	3650
Specific heat( J K⁻¹ kg⁻¹ )	712@25°C
Thermal conductivity( W m⁻¹ K⁻¹ )	80-240@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	0.6-4.3@0-100°C

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Rigid Graphite Carbon Disk

Tolerances

Material Properties for Metals