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Kinetics of the graphitization-induced dimensional changes of artificial carbons

✍ Scribed by K.J. Hüttinger; U. Rosenblatt

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
380 KB
Volume
14
Category
Article
ISSN
0008-6223

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✦ Synopsis

The graphitization shrinkage of seven molded artit%% carbons made from a broad spectrum of filler materials with thermoplastic or thermosetting binders and baked to 1200°C was measured pe~ndic~~ to the grain orientation. Heat treatments were ~~orrned isotherm~y between 1500 and 2900°C for times between 0.5 and 4 hr. It is shown that the shrinkage rates of all the carbons can be described by a general kinetic law. The total shrinkage after infinite isothermal time is found to be temperature dependent. The characteristic temperature dependence of the shrinkage is determined by the binder system. The filler and other manufacturing parameters only influence the amount of shrinkage.

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