Carbon Fibre and Rods
| A0819 high purity carbon fibre Sometimes referred to as "braid", carbon fibre" consists of eight separate strands of individual carbon fibre braided together. The fibre is manufactured so that when cut, the ends resist unraveling. The fibre density is about 1.6g/meter. |
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| High purity carbon rods Carbon rods are typically used for evaporating (and sometimes shadowing) carbon onto specimens being prepared for either x-ray microanalysis (EDS or WDS) or transmission electron microscopy (TEM). All Quorum Technologies carbon rods are high purity (spectroscopically pure with less than 6 ppm ash). |
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We strongly recommend the use of carbon rods with “stepped” profiles. Tapered (pencil-like) profile rods can be used, but have two practical disadvantages over “stepped” profile carbon rods:
- Electric resistance (and therefore evaporation characteristics) changes during evaporation.
- During evaporation it is less easy to estimate how much carbon has been evaporated from a tapered carbon rod. With "stepped" profile carbon rods an end point is reached when the entire first step has been evaporated.
Shaping carbon rods
To ensure the best possible surface finish, we recommend that carbon rod are “ground” to shape rather than “scraped” (for example, using a hand held pencil sharpener). Please see Quorum Technologies SC7605 motorised carbon grinder.
Ordering information
Unshaped high purity carbon rods
A0821A High
purity carbon rods 3mm x 100mm (packet of 10)
A0830A High
purity carbon rods 6.2mm x 100mm (packet of 10)
Shaped high purity carbon rods
A0832A High
purity shaped (“stepped”) carbon rods 3mm x 50mm (packet of
10)
A0834A High purity shaped
(“stepped”) carbon rods 6.2mm x 50mm (packet of 10)
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