caa a22 4500 445381949 CHVBK 20180317143020.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-0998-z doi (NATIONALLICENCE)springer-10.1007/s10948-010-0998-z Influence of Diffusion-Annealing Temperature onthePhysico-Mechanical Properties of Au-doped Bi-2223 Superconductors [Elektronische Daten] [O. Ozturk, C. Terzioglu, I. Belenli] In order to investigate the influence of Au doping and diffusion-annealing temperature on the mechanical and superconducting properties of Bi-2223, Bi1.8Pb0.35Sr1.9Ca2.1Cu3Oy superconductors were prepared by standard solid-state reaction methods. Doping of Bi-2223 was carried out by means of gold diffusion during sintering from an evaporated gold film on pellets. The investigation consisted of scanning electron microscopy, dc resistivity and hardness measurements. Electrical-resistivity measurements indicated that the room-temperature resistivity value decreased with decreasing diffusion-annealing temperature from 830 to 500 °C and these samples (G830, G800, G750, G700, G600 and G500) show the resistive behavior above the onset critical transition temperature with the zero-resistivity transition temperatures of 104 K, 80 K, 98 K, 95K, 102 K and 103 K, respectively. To investigate mechanical properties of the samples, we have measured the diagonal length as a function of test load in the range of 0.245-2.940N. Mechanical properties (microhardness, Young's modulus, yield strength and fracture toughness) of the samples are found to be load and diffusion-annealing temperature dependent. In addition, we have calculated the load independent hardness, Young's modulus, yield strength, and fracture toughness of the samples. The possible reasons for the observed changes in superconducting and mechanical properties due to Au diffusion and diffusion-annealing temperature were discussed. Springer Science+Business Media, LLC, 2010 Mechanical properties of BSCCO nationallicence Bi-2223 nationallicence Au doping nationallicence Bi-based cuprates nationallicence Microhardness nationallicence Ozturk O. Department of Physics, Faculty of Science and Arts, Kastamonu University, 37100, Kuzeykent, Kastamonu, Turkey aut Terzioglu C. Department of Physics, Faculty of Science and Arts, Abant Izzet Baysal University, 14280, Golkoy, Bolu, Turkey aut Belenli I. Department of Physics, Faculty of Science and Arts, Abant Izzet Baysal University, 14280, Golkoy, Bolu, Turkey aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 381-390 1557-1939 24:1-2<381 2011 24 10948 https://doi.org/10.1007/s10948-010-0998-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0998-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ozturk O. Department of Physics, Faculty of Science and Arts, Kastamonu University, 37100, Kuzeykent, Kastamonu, Turkey aut NATIONALLICENCE 700 1- Terzioglu C. Department of Physics, Faculty of Science and Arts, Abant Izzet Baysal University, 14280, Golkoy, Bolu, Turkey aut NATIONALLICENCE 700 1- Belenli I. Department of Physics, Faculty of Science and Arts, Abant Izzet Baysal University, 14280, Golkoy, Bolu, Turkey aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 381-390 1557-1939 24:1-2<381 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer