| Numéro |
J. Phys. Colloques
Volume 46, Numéro C10, Décembre 1985
Eighth International Conference on Internal Friction and Ultrasonic Attenuation in Solids
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|---|---|---|
| Page(s) | C10-561 - C10-564 | |
| DOI | https://doi.org/10.1051/jphyscol:198510125 | |
Eighth International Conference on Internal Friction and Ultrasonic Attenuation in Solids
J. Phys. Colloques 46 (1985) C10-561-C10-564
DOI: 10.1051/jphyscol:198510125
1 Department of Metallurgy and Mining Engineering and Materials Research Laboratory, University of Illinois, Urbana, IL 61801, U.S.A.
2 Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaften, 0-7000 Stuttgart, F.R.G.
J. Phys. Colloques 46 (1985) C10-561-C10-564
DOI: 10.1051/jphyscol:198510125
STRUCTURE OF NATURAL MACROMOLECULAR SOLIDS
C.A. WERT1 and M. WELLER21 Department of Metallurgy and Mining Engineering and Materials Research Laboratory, University of Illinois, Urbana, IL 61801, U.S.A.
2 Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaften, 0-7000 Stuttgart, F.R.G.
Abstract
Internal friction and dielectric loss measurements on coal, oil shale, amber and other natural macromolecular materials show anelastic character similar to that of synthetic polymers. Macromolecular units which undergo reorientation under either a mechanical or electrical stress produce a characteristic loss spectrum. This paper shows general features of loss spectra in coal and amber, describes the kinetics of the relaxations and proposes molecular models for these macromolecular materials.