Electrocrystallization of silver dendrites

Abstract

Morphology of electrodeposited silver dendrites was investigated by scanning electron microscope (SEM). On the basis of morphological analysis, the structures and mechanism of growth were proposed. Silver dendrite is twin crystal with {111} twinning plane and direction of growth LT 112>. Mechanism of growth represents combinations of three steps: a) growth by propagation of twin planes, b) slip of twin planes and c) layer growth on the final (111) faces.

Morfologija elektrohemijski istaloženih dendrita srebra analizirana je tehnikom skenirajuće elektronske mikroskopije (SEM). Na osnovu morfoloških proučavanja predložena je struktura i mehanizam rasta dendrita. Dendrit srebra je dvojnikovani kristal sa {111} ravni dvojnikovanja i pravcima rasta LT 112>. Mehanizam rasta predstavlja kombinaciju tri procesa: a) rast ravni dvojnikovanja preko sistema uvučenih ivica, b) klizanje ravni dvojnikovanja i c) rast slojeva na završnim (111) pljosnima.