caa a22 4500 445383097 CHVBK 20180317143023.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s10948-010-1118-9 doi (NATIONALLICENCE)springer-10.1007/s10948-010-1118-9 The Effect of Sintering Temperature Variation on the Superconducting Properties of ErBa2Cu3O7− δ Superconductor Prepared via Coprecipitation Method [Elektronische Daten] [M. Nazarudin, I. Hamadneh, W. Tan, Z. Zainal] The effect of heat treatment on the superconducting properties of ErBa2Cu3O7−δ (ErBCO) ceramic materials has been studied. The nano-metal oxalate precursor was prepared using coprecipitation (COP) method. The prepared materials were subjected to calcination process at 900 °C for 12h and then sintered under oxygen environment for 15h at 920 °C, 930 °C, 940 °C, and 950 °C, respectively. All samples showed a metallic behavior and single-step transition in the R-T curves. The best zero critical current, T C(R=0)=91.4 K, was for the sample sintered at 920 °C. XRD data showed single phase of an orthorhombic structure. As the sintering temperature increases, the formation of nonsuperconducting phases (impurities) was observed when the samples sintered above 920 °C. The formation of nano-oxalate powders via COP method is a very efficient procedure to produce high-quality superconductors with less processing temperature required. Springer Science+Business Media, LLC, 2010 ErBa2Cu3O7− δ nationallicence Coprecipitation method nationallicence Metal oxalate precursor nationallicence Orthorhombic structure nationallicence Nazarudin M. Institute of Bioscience, Lebuh Silikon, Universiti Putra Malaysia, 43400, Selangor Darul Ehsan, UPM Serdang, Malaysia aut Hamadneh I. Department of Chemistry, Faculty of Science, University of Jordan, 11942, Amman, Jordan aut Tan W. Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Selangor, UPM Serdang, Malaysia aut Zainal Z. Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Selangor, UPM Serdang, Malaysia aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/5(2011-07-01), 1745-1750 1557-1939 24:5<1745 2011 24 10948 https://doi.org/10.1007/s10948-010-1118-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-1118-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nazarudin M. Institute of Bioscience, Lebuh Silikon, Universiti Putra Malaysia, 43400, Selangor Darul Ehsan, UPM Serdang, Malaysia aut NATIONALLICENCE 700 1- Hamadneh I. Department of Chemistry, Faculty of Science, University of Jordan, 11942, Amman, Jordan aut NATIONALLICENCE 700 1- Tan W. Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Selangor, UPM Serdang, Malaysia aut NATIONALLICENCE 700 1- Zainal Z. Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400, Selangor, UPM Serdang, Malaysia aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/5(2011-07-01), 1745-1750 1557-1939 24:5<1745 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer