VERY LOW FREQUENCIES INTERNAL FRICTION MEASUREMENTS OF ICE Ih. ICIFUAS- 7. Seventh International Conference on Internal Friction and Ultrasonic Attenuation in Solids. J. Colloques 4. 2 (1. C5- 5. 41- C5- 5. DOI: 1. 0. 1. 05. J. Vassoille Groupe d'Etudes de M.
Villeurbanne Cedex, France Abstract Very low frequencies internal friction measurement (1 - 1. Hz) in ice permitted to increase the knowledge of the internal friction of ice, especially the relaxation phenomenon. The activation energy of the relaxation is 0. V, a caracteristic value of the migration of rotational defects. It follows a Curie Law. Experiments after different cooling rate put in evidence the role of intrinsic defects. 42, 67-70 (1981) DOI: 10.1051/jphyslet:0198100420306700 Two kinds of two-dimensional order : the SmF and SmI phases. Etude structurale aux rayons-x d'un polyester nematique thermotrope on ResearchGate, the professional network for scientists. Etude aux rayons X de la phase incommensurable dans (N(CH3) 4)2MCl4, M = Co et Zn on ResearchGate, the professional network for scientists.
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