Special Issue "Characterization of Nanocrystalline Materials"
A special issue of Nanomaterials (ISSN 2079-4991).
Deadline for manuscript submissions: closed (31 July 2020) | Viewed by 12825
Interests: nanostructured materials; nanocrystalline chalcogenides; multinary systems; disordered systems; metal sulfides; selenides; tellurides; thermoelectric materials; thin-film thermoelectric materials; thermoelectric generators
Special Issues, Collections and Topics in MDPI journals
Interests: surface engineering; mechanical characterization by nanoindentation; residual stress at the micro and sub-micro scale; focussed ion beam microscopy; transmission microscopy
The tumultuous development of nanocrystalline materials in the last twenty years has been accompanied by a flourishing of characterization techniques, often developed for nanoscale investigations. With the advent of quantum dots, nanowires, nanotubes, graphene, and the like, metastable nano-sized multiphase materials and high-entropy alloys, nanostructured or amorphous films and coatings with graded or controlled properties down to the sub-micron scale, the concept of dimensionality has been radically changed, paving the way for new materials with properties that are surprisingly different from those of the corresponding bulk form. In this respect, traditional techniques for studying materials require substantial modifications to adapt to the specificities of nanocrystalline materials. This is based on a rather simple but not always understood concept, that nanocrystals cannot simply be considered as a small portion of a macroscopic crystal and the clear knowledge of interaction volume between the probe and the material is paramount in the understanding of what is being measured and the inferred properties from the nanoscale, eventually up to the whole device. Even the usual concepts of symmetry, for example, translational, and the concept itself of crystalline structures, are unsuitable and require a paradigm shift in the use of traditional techniques. Mechanical properties at this scale also have to be carefully described and understood so to obtain useful data on the effective mechanical performances, in terms of load-bearing and load transmission, elastic, plastic and viscous behavior, fatigue, and, finally, wear resistance. This Special Issue is dedicated to the characterization of nanocrystalline materials and their aggregates, including new and advanced techniques as well as the more traditional ones, as they evolved and were modified to study materials at the nanoscale. Specific case studies are welcome as well as short reviews.
Prof. Dr. Paolo Scardi
Prof. Dr. Edoardo Bemporad
Dr. Marco Sebastiani
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- Nanocrystalline materials
- Characterization techniques