Induced Codeposition of Alloys of Tungsten, Molybdenum and Rhenium with Transition Metals

In this section, the process of electrodeposition is reviewed briefly, and its place in the general context of electrode reactions and charge transfer across the metal/solution interface is set (Section 1.1). In Section 1.2, special emphasis is given to deposition of alloys, and particularly to anomalous deposition of alloys (Sections 1.2.3 and 1.2.4). Next, the phenomenon of induced codeposition is defined, and possible mechanisms are discussed briefly (Section 1.2.5). Several electroless (Section 1.2.6) and electrodeposition processes, in which induced codeposition plays a role, are mentioned. A more extensive discussion of electrodeposition of W-, Mo- and Re-based alloys is included in Section 2. Typical bath compositions and operating conditions are listed in Appendices A through C, respectively.

Many books have been dedicated over the years to the topic of electrodeposition (see, for example, Refs. 1-6). These books deal with a variety of sub-topics such as surface preparation of the substrate prior to deposition, thermodynamics and kinetics of electrodeposition, the reactions that take place on an atomistic level, the mechanisms of growth, the effect of bath chemistry and operating conditions, the deposition of specific metals and alloys, the structure and properties of deposits, etc.