caa a22 4500 445379936 CHVBK 20180317143014.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10948-011-1153-1 doi (NATIONALLICENCE)springer-10.1007/s10948-011-1153-1 Improvements of Superconducting Properties of Hg0.6Pb0.25Sb0.15Ba2Ca2Cu3O8+ δ Ceramic by Controlling the Sintering Time [Elektronische Daten] [Kareem Jasim, Tariq Alwan, H. Al-Lamy, H. Mansour] In this work, we present a systematic study on the effect of sintering time on the superconducting behavior of the Hg0.6Pb0.25Sb0.15Ba2Ca2Cu3O8+δ compound. Bulk polycrystalline samples have been prepared by a solid state reaction method. It has been observed that the as grown Hg0.6Pb0.25Sb0.15Ba2Ca2Cu3O8+δ compound corresponds to the 1223 phase. Electrical resistivity, using the four probe technique, was used to find the transition temperature T c . The highest T c(off) and T c(on) were found to be 116K and 132K, respectively, for the sample preparation with a sintering time of 24hours. X-ray diffraction (XRD) analysis showed a tetragonal structure with a decrease of the c-axis lattice constant with an increase of the sintering time. It was found that the increase of the sintering time produces a change in the c/a and volume fraction V Ph(1223). Springer Science+Business Media, LLC, 2011 Superconducting nationallicence T c nationallicence Hg0.6Pb0.25Sb0.15Ba2Ca2Cu3O8+ δ nationallicence Jasim Kareem Department of Physics, College of Education, Ibn-Al-Haithem, University of Baghdad, Baghdad, Iraq aut Alwan Tariq Department of Physics, College of Education, Al-Mustansiriyah University, Baghdad, Iraq aut Al-Lamy H. Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq aut Mansour H. Department of Physics, College of Education, Al-Mustansiriyah University, Baghdad, Iraq aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/6(2011-08-01), 1963-1966 1557-1939 24:6<1963 2011 24 10948 https://doi.org/10.1007/s10948-011-1153-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-011-1153-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jasim Kareem Department of Physics, College of Education, Ibn-Al-Haithem, University of Baghdad, Baghdad, Iraq aut NATIONALLICENCE 700 1- Alwan Tariq Department of Physics, College of Education, Al-Mustansiriyah University, Baghdad, Iraq aut NATIONALLICENCE 700 1- Al-Lamy H. Department of Physics, College of Science, University of Baghdad, Baghdad, Iraq aut NATIONALLICENCE 700 1- Mansour H. Department of Physics, College of Education, Al-Mustansiriyah University, Baghdad, Iraq aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/6(2011-08-01), 1963-1966 1557-1939 24:6<1963 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer