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Reticulated Vitreous Carbon (RVC) Foam

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Description

Reticulated vitreous carbon is a form of glassy carbon. It has an open pore structure and extremely high porosity, giving a high surface area and low resistance to fluid flow. It is chemically inert in non-oxidising environments over a wide temperature range, maintains strength at high temperatures, and is thermally insulating yet electrically conducting.


Applications include use as porous electrodes, thermal insulation, filtration, substrate support and acoustic control. Vitreous or glassy carbon is a non - graphitizing or non - graphitizable carbon which combines glassy and ceramic properties with those of graphite. Unlike graphite, glassy carbon has a fullerene - related microstructure. This leads to a great variety of unique materials properties.


It has low thermal resistance. Because of the high surface area of the foam, heat transfer to/from fluids flowing through the foam is greatly accelerated. RVC foam is also ideal for use with phase change materials (PCM) because of the large amount of surface area, which increases coupling to PCM.


Reticulated Vitreous Carbon (RVC) is an excellent material for use as a porous electrode. The structure provides both low electrical and low fluid flow resistance. Large current distribution areas are possible due to the enormous amount of surface area of the foam.


Reticulated Vitreous Carbon (RVC) is uniquely strong at elevated temperatures. It also has a high scratch resistance at 6 - 7 mohs.


RVC is inert to a wide range of very reactive acids, bases, and organic solvents. At high temperatures it will form carbides, but is inert to non-carbide forming metals

Properties

Electrical

Electrical resistivity ρel

3.23E-3 Ω·m at 20 °C

Mechanical

Compressive strength Rmc

0.1 - 0.52 MPa at 20 °C

Elastic modulus E

101.84 GPa at 20 °C

Hardness, Mohs HM

6 - 7 [-] at 20 °C

Hardness, Vickers HV

35 [-] at 20 °C

Shear modulus G

30.3 GPa at 20 °C

Shear strength τ

30.3 MPa at 20 °C

Tensile strength Rm

0.17 - 3.4 MPa at 20 °C

Thermal

Coefficient of thermal expansion α

2.2E-6 1/K at 100 °C

Show chart

Max service temperature Tmax

315 °C

Max service temperature, inert Tmax,inert

3499 °C

Specific heat capacity cp

1.26 J/(kg·K) at 20 °C

Thermal conductivity λ

0.03 - 0.05 W/(m·K) at 20 °C

Technological properties

Application areas

Microscopy and Microanalysis, Metallurgical, Laboratory Research, Vacuum Evaporation, Semiconductor & Electronics, Nuclear, Aerospace

Other

The key features are: High purity, resistance in inert gas or vacuum up to 3000°C and in air up to 600°C, corrosion resistance, Impermeability to gas and liquids, no open porosity, high hardness and strength, low density, extreme resistance to thermal shock, good electrical conductivity, no wetting by many saline, metallic and ceramic melts, physical and chemical properties are isotropic

This material data has been provided by Goodfellow.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.