J. Phys. Colloques 51, C1-109-C1-113 (1990)
DOI: 10.1051/jphyscol:1990115

HREM STUDIES OF [001] TILT GRAIN BOUNDARIES IN GOLD

F. COSANDEY¹, S .-W. CHAN² et P. STADELMANN<sup>3

1</sup>  Rutgers-The State University of New Jersey, Department of Mechanics and Materials Science Piscataway, NJ 08855-0909, U.S.A.
²  Bell Communications Research, Newman Spring Road, Red Bank, NJ 07701-7020, U.S.A.
³  Swiss Federal Institute of Technology, Institut Interdepartemental de Microscopie (I²M), CH-1015 Lausanne, Switzerland

Abstract
On a étudié par microscopie electronique à haute resolution (MEHR) les structures atomiques des joints de flexion dans des bicristaux d'or d'orientation Σ = 5 (θ = 36.9°) autour de [001]. On a observé une structure unique pour les interfaces symétriques (310) et (210) et assymetriques (430)//(100). On a mesuré les dilatations volumiques et l'energie des joints de grains, et les resultats sont comparés à differents resultats de simulations.

Abstract
The atomic structures of Σ = 5 (θ = 36.9°) [001] tilt boundaries in Au have been investigated by high resolution electron microscopy (HREM). Unique grain boundary atomic structures were observed for (310) and (210) symmetric and (430)//(100) asymmetric inclinations. Volume expansions and grain boundary energy measurements are presented, and results compared to various computational results.