ISSN:
1573-2746
Keywords:
Quadruple junctions
;
triple junctions
;
grain boundaries
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract Junctions of four grain boundaries (quadruple junctions) may form during grain growth. An analysis of the stability/unstability of quadruple junctions in 2D polycrystals is presented based on simple thermodynamic arguments. Depending on the angles between the four grain boundaries, their junction may dissociate into two triple junctions or be stable. In the first case there are two possible dissociations, but in general one is favored. A stable quadruple junction moves as a whole to a new position before it dissociates. These alternatives in the behavior of a quadruple junction are conveniently displayed in maps which indicate the regions where each alternative occurs.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00203604
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