On the problem of reactor graphite lifetime

Fine-grained dense graphites of different manufacturers were tested and studied for the purpose of predicting their lifetimes at high (∼2000°C) temperatures. The tests consisted in sample heating by electric current to a destruction temperature. The study included a set of electron microscopy, X-ray...

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Published inSurface investigation, x-ray, synchrotron and neutron techniques Vol. 4; no. 3; pp. 442 - 451
Main Authors Zhmurikov, E. I., Bolkhovityanov, D. Yu, Blinov, M. F., Ishchenko, A. V., Kot, N. Kh, Titov, A. T., Tsybulya, S. V., Luigi, Tecchio
Format Journal Article
LanguageEnglish
Published Dordrecht SP MAIK Nauka/Interperiodica 01.06.2010
Subjects
Chemistry and Materials Science
Materials Science
Surfaces and Interfaces
Thin Films
Neutron Technique
Graphite Composite
Surface Investigation
Graphite Sample
Graphite
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Summary:Fine-grained dense graphites of different manufacturers were tested and studied for the purpose of predicting their lifetimes at high (∼2000°C) temperatures. The tests consisted in sample heating by electric current to a destruction temperature. The study included a set of electron microscopy, X-ray diffraction, and electrical methods. X-ray diffraction data for initial samples were compared with data for domestic MPG graphite. Scanning electron microscopy was applied to both initial and heated samples. The lifetime prediction was based on the Zhurkov classical formula. It was shown that CGD, Carbone Lorraine, and MPG graphite composites can differ appreciably in both structural characteristics and high-temperature lifetimes.
ISSN:1027-4510
1819-7094
DOI:10.1134/S1027451010030146