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Glassy Carbon

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Glassy Carbon is non-graphitized carbon that combines glass and ceramic properties. It is widely used as an electrode material in electrochemistry. Heeger Materials is a professional supplier of high-quality Glassy Carbon, offering various forms including rod, tube, plate, sheet, foil, film, crucible, or customized according to specific requirements.

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ShapeRod, Plate, Film, Powder, or Customized
MaterialsGlassy Carbon

More info

Glassy Carbon is a high-purity carbon material that combines glass and ceramic properties with graphite. Unlike graphite, it has a fullerene-related microstructure and a random combination of base and edge layers. 

Glassy Carbon

Glassy Carbon Products Specifications

Glassy Carbon Rod

Regular Size

Other Customized Size

  • R-1 Glassy carbon rod OD: 1 mm, L: 100 mm
  • R-2 Glassy carbon rod OD: 2 mm, L: 100 mm
  • R-3 Glassy carbon rod OD: 3 mm, L: 100 mm

Diameter / Maximum length:

  • 1 mm / 340 mm
  • 2 mm / 480 mm
  • 3 to 10 mm / 600 mm

Glassy Carbon Plate

Regular Size

Other Customized Size

  • P-1 Glassy carbon plate 10x10x1 mmt
  • P-1 Glassy carbon plate 25x25x1 mmt
  • P-2 Glassy carbon plate 25x25x2 mmt
  • P-3 Glassy carbon plate 25x25x3 mmt
  • within 300 x 300 mm, 
  • thickness of 0.3, 0.5, and 1 to 6 mm

Glassy Carbon Film

Regular Size

Other Customized Size

  • F-100 Glassy carbon film 25x25x0.1 mmt
  • within 100 x 100 mm
  • thickness of 60, 100, and 140 µm

Glassy Carbon Powder

  • S-12 Glassy Carbon powder (Spherical) 0.4-12 µm
  • S-20 Glassy Carbon powder (Spherical) 10-20 µm

Glassy Carbon Typical Physical Parameter

Glassy Carbon (Other than thin film type)

Glassy Carbon-Thin Film Type

Density

1.42 g/cm3

1.54 g/cm3

Ash content

< 100 ppm

The upper-temperature limit in vacuum

3,000 °C

1,000 °C

Porosity

0%

Gas transmission rate

10-9 cm2/s

10-11 cm2/s

Hardness

230 HV1

340 HV1

Bending strength

260 N/mm2

210 N/mm2

Compressive strength

480 N/mm2

580 N/mm2

Young’s modulus

35 kN/mm2

Thermal expansion coefficient (20-200 °C)

2.6 x 10-6 /K

3.5 x 10-6 /K

Heat conducting (@30 °C)

6.3 W/(m·K)

4.3 W/(m·K)

Electrical resistivity

45 µΩ·m

50 µΩ·m

Glassy Carbon Typical Properties

  • High-temperature resistance up to 3,000 °C under inert gas or vacuum.
  • Extremely resistant to corrosion.
  • Resistant to penetration of gases and liquids, no porosity.
  • Immune to molten substances (inorganic salts, metals, etc.).
  • High hardness and strength.
  • Low specific gravity, rapid heating, and cooling.
  • High-quality surface finish, no particles generated when polishing.
  • Low thermal expansion for use at high temperatures.
  • Excellent resistance to thermal shock.
  • Isotropic physical and chemical properties.
  • Excellent electrical conductivity.
  • Good biocompatibility.

Glassy Carbon and Isotropic Graphite Acid-Resistance Test

Isotropic Graphite:

Isotropic Graphite Acid-Resistance Test SEM

                                     Before                                                                                         After

Glassy Carbon:

Glassy Carbon Acid-Resistance Test SEM

                                      Before                                                                                        After

Glassy Carbon Applications

  • It can be used as a buffer and plasma etching electrode for silicon chip epitaxial growth.
  • It can be used as fuel cell electrode materials, motor brushes, and reactor components.
  • It can used as melting pots, pipes, and containers for corrosive metals.
  • It can be used to make implantable medical devices such as artificial bone, dentures, heart valves, etc.
  • It can be used as insulating materials, catalyst containers, etc.

Where to Buy Glassy Carbon in Bulk?

Heeger Materials Inc., a professional supplier, and manufacturer of high-quality Glassy Carbon, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We are a specialized supplier of premium-grade metals, alloys, ceramics, powders, and various other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.

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