4. Graphite and carbon-carbon composites
Graphite has been used for many years in vacuum furnaces capable of reaching temperatures in excess of 2,000°C. Resistors based on carbon-carbon composites C–C are much more recent and are still being developed
4.1 Composition. Elaboration
-
The graphite used for heating elements is actually a mixture of amorphous carbon and small graphite crystals obtained from coke. The properties of this material are isotropic, which is not the case for all synthetic graphites. Treatments can be carried out to reduce porosity, purify the material or combat oxidation for operation in air at 600°C instead of 450°C.
Resistors are made from synthetic graphite...
The Ultimate Scientific and Technical Reference
This article is included in
Conversion of electrical energy
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Graphite and carbon-carbon composites
Conclusion
Bibliography
References
Manufacturers - Suppliers
Table 1 (p. 2) lists the main suppliers and the characteristics of the resistors they market.
The Ultimate Scientific and Technical Reference
