This paper presents the experimental techniques of transmission electron microscopy of plasma-spray powder alloy coatings. It includes the specimen preparation techniques for powder materials and for plasma spray powder coatings from the nickel-chromium-based alloy and synthetic hydroxyapatite (HA) and the analysis of the results. The study of the structure-phase compositions of HA powders and HA and Ni-Cr-based plasma spray coatings has been carried out by using transmission electron microscopy on JEM-2100 (JEOL), and by X-ray diffraction (XRD) on X'Pert PRO diffractometer (PANalytical, the Netherlands). It has been established that the coatings have the desired structure-phase composition as a result of the selection of specific modes of plasma spraying and additional plasma treatment. The advantages and challenges of application of TEM method for analyzing the structure of thick (up to 300 µm) powder coatings deposited by plasma spraying methods onto metal substrates are investigated.
In bulk and thin film state Fe86Mn13C alloy observed experimentally self-assembly of the crystal and magnetic structures on multiscale levels. Offered self-assembly cluster model of atomic structure based on the concept of a liquid-like state of the material in localized areas, formed in the waves of plastic deformation.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.