Abstract
Multiply twinned decahedral particles of palladium have been studied by high-resolution electron microscopy in order to obtain evidence of lattice defects resulting from stress-relief processes due to internal elastic strains. This characterization revealed the presence of stacking faults parallel and adjacent to twin boundaries as well as inclined to twin boundaries. Additionally, for the first time stacking fault tetrahedra have been observed in the bulk of tetrahedral subunits. At the surface of the particles a pronounced micro-facetting has been shown to occur.
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