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Vystavel, T.; Paidar, V.; Gemperle, A.; Gemperlová, J.

doi:10.1023/a:1008635119516

Cited by 12 publications

(12 citation statements)

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“…Vystavel et al [23] studied the dislocation structures of Cu tilt GBs with small deviations in Y, F and C from the ideal S 5, Y 36X98 310001 tilt GB applying transmission electron microscopy. The investigated Cu bicrystals stem from the same origin as the Cu bicrystals of this study.…”

Section: Structure Dependence Of Au and Cu Gb Diusion In Cu Bicrystalsmentioning

confidence: 99%

“…This interpretation supports the idea of a phase transition-like change of the GB structure. [23]. l E represents the line of edge dislocations forming an array of parallel dislocations; the hexagonal shaped dislocation net consists of the screw dislocation l S and of l D1 and l D2 of mixed screw and edge character.…”

Section: Temperature Dependence Of Au Gb Diusion In Cu Bicrystalsmentioning

confidence: 99%

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Tracer diffusion of Au and Cu in a series of near Σ=5 (310)[001] symmetrical Cu tilt grain boundaries

et al. 1999

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AbstractÐGrain boundary diusion of Au and Cu was measured in a series of Cu bicrystals with symmetrical near AE 5, Â 36X98 310001 CSL tilt grain boundaries (GBs) using the radiotracer and the serial sectioning technique. The orientations of the bicrystals were very precisely determined with the Kossel technique where all three macroscopic parameters describing the orientations of the grains in the bicrystal were evaluated. The tilt angles ranged from 33.218 to 39.268. The GB diusion of the radiotracers 195 Au and 64 Cu was measured as a function of tilt angle and temperature. In the investigated temperature range 1030±661 K the orientation dependence of both radiotracers shows a characteristic cusp not exactly at but slightly below the ideal AE 5 CSL GB. The Arrhenius parameters, activation enthalpy and frequency factor, determined from lower temperature data adopt a maximum, again slightly before the ideal AE 5 CSL GB. These features are discussed with respect to the accidental small twist and second tilt orientations and the corresponding dislocation network inherent in the investigated real GBs. With increasing temperature a negative deviation from a straight Arrhenius behaviour is observed. This result indicates a certain change in the GB structure in the temperature range above 800 K. #

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Section: Structure Dependence Of Au and Cu Gb Diusion In Cu Bicrystalsmentioning

confidence: 99%

Section: Temperature Dependence Of Au Gb Diusion In Cu Bicrystalsmentioning

confidence: 99%

Tracer diffusion of Au and Cu in a series of near Σ=5 (310)[001] symmetrical Cu tilt grain boundaries

et al. 1999

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“…The exact misorientation of the grains in the foil used was determined by an improved Kikuchi line technique (Gemperle and Geinperlova 1995). The supplementary misorientation characterizing the deviation from the exact coincidence was decomposed into twist and tilt parts (Vystavel et al 1997). The values are summarized in table 1.…”

Section: Trarzsmission Electron Microscopy Cliarncterizu Fiori Of' Bimentioning

confidence: 99%

“…The dislocation repeat unit is one mixed dislocation I1 separated by 6.4 nm and three edge dislocations I 8.2 nm apart. For details see Vystavel et al (2001).…”

Section: Trarzsmission Electron Microscopy Cliarncterizu Fiori Of' Bimentioning

confidence: 99%