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Carbon & Graphite

Carbon & Graphite Overview

Family Overview

CoorsTek carbon and graphite ceramics both have high purity, thermal conductivity, and electrical conductance. The unique combination of purity and thermal conductivity prevents contamination and thermal shock: making the material ideal for both semiconductor manufacturing and high-strength electronics.

Different coatings can be applied to augment the material properties. Additionally, the low electrical resistivity and high thermal conductivity makes carbons ideal for maintaining a lower operating temperature in heat generating electrical parts like motor brushes. 

  • Electrical conductance
  • High purity
  • Thermal shock resistance
  • Thermal conductivity

Ceramic Expertise

CoorsTek has the expertise to optimize each carbon composition to meet customer specifications through precise production, and a range of finishing options.

Capabilities like CVD SiC coatings have earned our carbons and graphites  worldwide recognition. Our Clear Carbon™, in particular, is well known as a susceptor for epitaxial growth in semiconductor production. 

Property Units Carbon

C

Flexural Strength MOR, (20°C)

MPa

40-300

Compressive Strength, (20°C)

MPa

-

Fracture Toughness, KIc

MPa m1/2

-

Hardness, Rockwell 45N

R45N

-

Hardness, Knoop 1000gm

GPa

-

Maximum Use Temperature

°C

-

Coefficient of Thermal Expansion, (25-1000°C)

1 x 10-6/°C

-

Thermal Shock Resistance, (∆T)

°C

-

Thermal Conductivity, (20°C)

W/m K

107.0-340.0

Dielectric Strength, (6.35mm)

ac-kV/mm

-

Dielectric Constant, (1 MHz)

25°C

-

Volume Resistivity, (25°C)

ohm-cm

-

The information provided on this chart is for general material property reference only.  The customer should recognize that exact properties of materials may vary according to product configuration but close control of values of most properties can be maintained, if specified. Nothing herein is provided, or is to be construed, as absolute engineering data or constituting a warranty or representation. Contact CoorsTek for cost-effective design, development and manufacturing assistance. CoorsTek has 300+ variations including various forming and firing processes, not all variants are represented in the present website.

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