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Title: Study of energy versus misorientation for grain boundaries in gold by crystallite rotation method. I. (001) twist boundaries

Technical Report ·
OSTI ID:6225957

Small gold crystallites (approx. 50 to 80 nm dia) were welded to thin film (001) single crystal gold substrates at a series of predetermined (001) twist angles in the range 0 to 45/sup 0/. A pure (001) twist boundary therefore existed in each welded neck region which could be observed directly by transmission electron microscopy at normal incidence. Upon annealing, the crystallites rotated around (001) when the boundary energy varied with theta. The crystallites rotated into three misorientations corresponding to the special ..sigma..1 and ..sigma..5 misorientations and a symmetry related misorientation at theta=45/sup 0/. These results indicate the existence of grain boundary dislocation (GBD) related cusps on the boundary energy versus theta curve at ..sigma..1 and ..sigma..

Research Organization:
Massachusetts Inst. of Tech., Cambridge (USA). Dept. of Materials Science and Engineering
DOE Contract Number:
FG02-84ER45116
OSTI ID:
6225957
Report Number(s):
DOE/ER/45116-4; ON: DE85004598
Resource Relation:
Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English