## 207 d'une grande variett de carbones ont ete comparees a leur efficacitt comme constituants des melanges depolarisant des piles seches. On montre que le rapport de la rbistivitt du noir de carbone B la quantitt de liquide qu'il peut absorber, joue un rBle fondamental dans l'efficacitt des piles
39. Observations on the temperature dependence of Young's modulus of graphites
โ Scribed by P.E Armstrong
- Publisher
- Elsevier Science
- Year
- 1968
- Tongue
- English
- Weight
- 162 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0008-6223
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โฆ 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 450ยฐK or by room temperature neutron irradiation. No evidence of a low temperature (about 50ยฐK) 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 5500ยฐF.*
๐ SIMILAR VOLUMES
The Young's modulus of pyrolytic graphite having varying degrees of preferred orientation, has been measured using the flexural vibration technique. The results are compared with Young's Modulus values predicted using single crystal elastic constants. The effect of neutron irradiation on the materia