Abstract
2014 Des résultats expérimentaux sur le système Pb3P2xV2(1-x) O8, obtenus par goniométrie très précise des rayons X, sont présentés.Ils montrent clairement qu'il n'y a pas estompement de l'ordre des transitions quand x, varie entre 0 et 1 mais étalement des températures critiques et du taux de transformation, c'est-à-dire du rapport volumique des phases haute et basse température.L'interface entre ces deux phases est décrit.Abstract.2014 Experimental results by means of very precise X-ray goniometry on Pb3P2xV2 (1-x) O8 system are given.They clearly show that there is no smearing of the order of transitions, x varying from 0 to 1, but a spreading of the critical temperature and of the rate of transformation, i.e. the volumic ratio between the high and low temperature phases.The interfaces between the two phases are described.
Keywords
Substitution (logic)Order (exchange)Materials scienceChemical physicsChemistryStatistical physicsPhysicsComputer scienceEconomics
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Publication Info
- Year
- 1987
- Type
- article
- Volume
- 48
- Issue
- 2
- Pages
- 253-259
- Citations
- 15
- Access
- Closed
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J. M. Kiat,
G. Calvarin,
P. Grégoire
et al.
(1987).
Experimental study of the spreading, due to substitution defects, of the first order transitions in the mixed system Pb3P2O 8-Pb3V2O8.
Journal de physique
, 48
(2)
, 253-259.
https://doi.org/10.1051/jphys:01987004802025300
Identifiers
- DOI
- 10.1051/jphys:01987004802025300