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Mass transport analysis for ostwald ripening and related phenomena

✍ Scribed by Che-Yu Li; J.M Blakely; A.H Feingold


Publisher
Elsevier Science
Year
1966
Weight
623 KB
Volume
14
Category
Article
ISSN
0001-6160

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✦ Synopsis


A method is developed for analysing coupled diffusional processes which may occur during solid state reactions. The procedure described here ensures that constraints imposed on the system and the criterion of minimum rate of entropy production are simultaneously satisfied. Composition and volume constraints are considered. The final results of the analysis are compared with previous work in this field. ET&DE DU TRANSPORT DE MASSE POUR LA CROISSAN~E D'OSTWALD ET PHENOMENES CONNEXES Les auteurs developpent une methode d'analyse des processus de diffusion coupl&s qui peuvent avoir lieu dans des r&u&ions a reactions 8,l'Etat Solids Cette analyse permet de satisfaire simultanement aux oontraintes impodes au systeme et au critere du minimum de production d'entropie. sont examinees. Les restrictions imposees par lss notions de volume ou de composition domaine. Les r&&tats flnaux de cette analyse sont cornpar& avec les travaux anterieurs dans ce ANALYSE DES MATERIETRANSPORTS BE1 DER OSTWALD-REIFUNG UND VERWANDTE ERSCHEINUNGEN Es wird eine Analysenmethode fur gekoppelte Diffusionsprozesse entwickelt, die bei Reaktionen im festen Zustand ablaufen k&men. Das hier beschriebene Verfahren stellt sicher, da6 die dem System auferlegten Zwangsbedingungen und das Kriterium der kleinsten Geschwindigkeit der Entropieproduktion gleichzeitig erfiillt sind. Z~~rnrn~nsetz~g und Volumzwan~~~fto werden betrachtet. Die Endergebnisse der Analyse werden mit friiheren Untersuch~gen auf diesem Gebiet verglichen.


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