Composition-driven crystal structure transformation and magnetic properties of electrodeposited Co–W alloy nanowires

Electrochemical Polymorphic Phase Formation in Metals

“…It is well-known that data on the phase composition, structure, texture and structural defects of the applied layers is extremely necessary to develop advanced technologies for producing electrodeposited coatings having improved physical [1][2][3], mechanical [4][5][6] or chemical [7][8][9] properties. These data can be predictably controlled using the recently established phenomenon of electrochemical phase formation in metals and alloys via a supercooled liquid state-stage [10][11][12][13][14].…”

“…1 Stereographic projections (00.1) (a) and (10.1) (b) for the hexagonal system (c/a = 1.623)To reveal possible grain orientations corresponding to the peripheral part of the direct pole figure (00.1), it is necessary to build up the central part of its complementary direct pole figure whose projection axis coincides with the normal to one of the above planes. It was experimentally found that the choice of the complementary direct pole figure is defined by ratio(1). Accordingly, in the event the central part of the direct pole figure (00.1) is constructed, it is necessary to construct the central part of one or other of the following direct pole figures: (10.1), (20.1), (21.1) or (11.1) so that the preferred orientations of grains corresponding to the peripheral part of the figure can be found.…”

“…The reason is that the central parts of the stereographic projection (11.1), (21.1), (20.1) or (10.1) (Fig.1b) include the poles for the planes corresponding to the periphery of the stereographic projection (00.1). However, if the central part of any of the direct pole figures (10.1), (20.1), (21.1) or (11.1) was constructed first, then further analysis of the texture calls for the central part of the direct pole figure (00.1) to be plotted, as required by(1).Similarly, if the central part of the direct pole figure (10.0) was constructed, there is a need additionally to build the central part of one of the direct pole figures (10.5), (10.4), (10.3) or (10.2) whose indices comply with condition (1). After that, conclusions can be made on the metal texture and degree of its perfection based on a combination of the central parts of the main and the complementary direct pole figure.…”

Template-based electrodeposited nonmagnetic and magnetic metal nanowire arrays as building blocks of future nanoscale applications

“…For industrial purposes, the electrochemical method depositing metal ions in nanopores of polycarbonate [48], ion-track etched [49] and anodic aluminum oxide (AAO) [50] templates is preferred over other bottom-up methods due to its cost-effectiveness, simplicity and efficiency. Especially, AAO templates with hexagonally self-ordered nanopores, and large mechanical and thermal stability can be used as starting materials by which to achieve highly uniform and highquality NW arrays with different L NW and D NW [51][52][53]. Conventionally, two-step mild anodization, and one-step hard anodization techniques are employed to fabricate AAO templates [54,55].…”

Review—Electrochemical Phase Formation via a Supercooled Liquid State Stage: Metastable Structures and Intermediate Phases

“…The production of electrodeposited metals/alloys in the form of electrodeposits with improved mechanical, [1][2][3][4] physical, [5][6][7][8] or chemical [9][10][11][12] properties requires an insight into their structural state, phase composition, microstructure, substructure, texture, and surface morphology. A purposeful control of the above structural characteristics is only possible with understanding the features of the formation of the metal or alloy phase, the structure, and the texture during their electrochemical deposition.…”