NMR study of the dynamics and structure of a good glass former LiCl-6H2O
| Autor: | Takashi Kamiyama, J. F. Jal, P. O. Maurin, N. Asahi, Junichi Kawamura, Yoshio Nakamura, J. Dupuy-Philon |
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| Rok vydání: | 1998 |
| Předmět: |
Self-diffusion
Phase transition Chemistry General Chemical Engineering Diffusion Relaxation (NMR) Spin–lattice relaxation Thermodynamics Condensed Matter::Disordered Systems and Neural Networks Condensed Matter::Soft Condensed Matter Nuclear magnetic resonance Intramolecular force Supercooling Glass transition |
| Zdroj: | Berichte der Bunsengesellschaft für physikalische Chemie. 102:152-155 |
| ISSN: | 0005-9021 |
| DOI: | 10.1002/bbpc.19981020205 |
| Popis: | The temperature dependences of the self-diffusion coefficient and the spin-lattice relaxation time have been studied by NMR measurements performed on a good glass former LiCl-6H 2 O. The spin-lattice relaxation time can be separated into two relaxation processes. i.e., inter- and intramolecular processes. We have related these relaxation processes to the translational diffusion which corresponds to the primary or α-relaxation and to the local motions which are related to the β-relaxation in glass forming systems. The results throw some light to the evolution with temperature of these relaxation processes in the LiCl-6H 2 O system over the normal liquid. supercooled liquid and glass sates. |
| Databáze: | OpenAIRE |
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