Structure and Properties of Nanostructured Y[Ba.sub.2][Cu.sub.3][O.sub.7- [delta]], BiFe[O.sub.3], and [Fe.sub.3][O.sub.4]

• Published in: Semiconductors (Woodbury, N.Y.) Vol. 51; no. 13; p. 1686
• Main Authors: Gadzhimagomedov, S.H, Alikhanov, N.M.-r, Emirov, R.M, Palchaev, D.K, Murlieva, Zh. Kh, Rabadanov, M.Kh, Sadykov, S.A, Khamidov, M.M, Hashafa, A.D.H
• Format: Journal Article
• Language: English
• Published: Springer 15.12.2017
• Subjects: Analysis; Ceramics; High temperature superconductors; Iron compounds; Magnetite
• ISSN: 1063-7826; 1090-6479
• DOI: 10.1134/S1063782617130073

The development of new nanostructured materials based on Y[Ba.sub.2][Cu.sub.3][O.sub.7-[delta]], BiFe[O.sub.3], and [Fe.sub.3][O.sub.4] compounds is considered. The structure, morphology, and properties of these materials are studied. The possibilities of fabricating Y[Ba.sub.2][Cu.sub.3][O.sub.7-[delta]] ceramics with given densities from nanopowders in a single stage by an energy efficient method and growing superconducting films of the same composition on a silicon substrate (on a Si[O.sub.2] layer) are demonstrated. The technique for fabricating BiFe[O.sub.3] nanopowder, making it possible to obtain nanostructured ceramics without additional accompanied phases commonly forming during BiFe[O.sub.3] synthesis is developed. Two methods of the single-stage synthesis of [Fe.sub.3][O.sub.4] nanopowder are presented: burning of nitrate-organic precursors and the electrochemical three-electrode method in which one of the electrodes, i.e., an anode containing scrap iron and slurry, is used as an expendable material. Keywords: nanomaterials, high-temperature superconductors, bismuth ferrite, magnetite, technology, structure and properties. DOI: 10.1134/S1063782617130073