The effect of tensile stress upon the resistivity of a polymeric carbon
โ Scribed by D.R. Hunt; G.M. Jenkins; T. Takezawa
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 563 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0008-6223
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โฆ Synopsis
The room temperature resistivity of a polymeric carbon made from a phenolic resin was measured as functions of heat treatment temperature and tensile stress. The elastic modulus (at room temperature) was also measured as a function of heat treatment temperature. Analysis of the results indicates a positive piezoresistance effect which decreases to zero at high heat treatment temperatures. The effect is related to the models for the physical and electronic structures of polymeric carbons proposed previously, and is found to be consistent with these models.
๐ SIMILAR VOLUMES
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 the