A first report on sintering diagramsDlagrammes de frittage (premier article)Ein erster bericht über sinterdlagramme
Abstract
Six or more distinguishable mechanisms contribute to the sintering of an aggregate of particles—even in the absence of applied stresses. Diagrams can be constructed which identify, at a given temperature, particle size and neck size, the dominant mechanism and show the rate of sintering that all the mechanisms, acting together, produce.
This paper describes the construction of two forms of these diagrams, and illustrates their use in interpreting sintering experiments and in solving practical sintering problems for metals and ceramics.
Résumé
Six mécanismes distincts, ou plus, contribuent au frittage d'un aggrégat de particules—même en l'absence de constraintes appliquées. On peut construire des diagrammes qui donnent, à une température donnée, la taille des particules, la taille des cols, le mécanisme dominant, et mettent en évidence la vitesse de frittage produite par tous les mécanismes agissant ensemble. Cet article décrit la construction de ces diagrammes (sous deux présentations) et illustre leur utilisation pour interpréter les expériences de frittage et pour résoudre les problèmes pratiques de frittage des métaux et des céramiques.
Zusammenfassung
Sechs oder mehr unterscheidbare Mechanismen tragen zum Sintern von Teilchen bei—auch in Abwesenheit einer äuβeren Belastung. Es können Diagramme konstruiert werden, mit deren Hilfe man bei vorgegebener Temperatur, Teilchengröβe und Sinterhalsgröβe den dominierenden Mechanismus identifizieren kann und die die Sintergeschwindigkeit zeigen, die sich aufgrund aller wirkenden Mechanismen ergibt.
In der vorliegenden Arbeit wird die Konstruktion von zwei Diagrammformen beschrieben und deren Verwendung zur Interpretation von Sinterexperimenten und zur Lösung praktischer Probleme beim Sintern von Metallen und Keramik erläutert.
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