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42. The stress dependence of the tensile creep rate in carbons and graphites

✍ Scribed by D.B Fischbach

Publisher
Elsevier Science
Year
1968
Tongue
English
Weight
287 KB
Volume
6
Category
Article
ISSN
0008-6223

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✦ Synopsis

and exhibit no pronounced peaks. In contrast, the graphites having crystallites which possess good threedimensional order have a large, rather broad internal friction peak near room temperature, The height of this peak varies from 50 to 1 IO x IO4 depending upon crystallite size and the previous thermal and mechanical history of the sample. A relaxation in the dynamic modulus is associated with this peak. The peak is destroyed by anneahng above 450Β°K or by room temperature neutron irradiation. No evidence of a low temperature (about 50Β°K) peak was found. 39. Observations on the temperature dependence of Young's modulus of graphites.* * Thh paper ia baaed on work performed under United States Atomic Energy Co nun&ion Contract AT(45-l)-1830. 41. Mechanfcal properties of RVD graphite from room temperature to 5500Β°F.*

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