In situstress measurements during electrodeposition of Ag-Sb and Pt-Co alloy multilayers

Abstract

Internal stresses in multilayer coatings from Ag-Sb and Pt-Co alloys with different alloying element contents in the individual sublayers are measured during the process of deposition. The results are compared with the stresses in thick alloy coatings of a content corresponding to the content of the individual sublayers in the multilayer system. Stresses in the first sublayers of a multilayer Ag-Sb coating correspond to those in a one-layer thick coating. Stresses in the subsequent sublayers are changed under the influence of previous sublayers. Changes in the internal stresses are related to the change in the element and phase content of the coatings. Strong relaxation effects are detected in multilayer alloy Pt-Co coatings, caused by the desorption of the codeposited hydrogen and the layer cracking.

Influence of Cu(100) Substrate on Growth, Morphology, Structural and Magnetic Properties of High Coercivity Electrodeposited Co-Pt-P Thin Films

“…The plating of Co-Pt-P from our electrolyte is accompanied by hydrogen evolution. The great affinity of Pt for hydrogen, as well as the data reported for a similar electrolyte in which hydrogen incorporation during the plating process and successive release was observed, 12 led us to conclude that hydrogen incorporation in the film and the consequent buildup of internal stresses are responsible for the cracks in the film shown in Fig. 7b.…”

Internal stress in multilayer silver–bismuth coatings

“…All experiments were carried out at room temperature. The internal stress of the coatings electrodeposited at 0.2 A dm )2 have low positive values, typical for pure silver plates deposited using similar electrolytes [3,15].…”