caa a22 4500 463189477 CHVBK 20180406164904.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10973-006-7884-8 doi (NATIONALLICENCE)springer-10.1007/s10973-006-7884-8 Preparation and characterization of superconducting YBa2(Cu1−xCrx)4O8 oxides by thermal analysis [Elektronische Daten] [G. Nenartaviciene, K. Tõnsuaadu, D. Jasaitis, A. Beganskiene, A. Kareiva] In this study the formation of chromium substituted YBa2Cu4O8 (Y-124) superconductors has been investigated by TG/DTA measurements. The YBa2(Cu1−xCrx)4O8 ceramics with nominal compositions of x=0.01, 0.03, 0.05, 0.10 and 0.20 have been prepared by an aqueous sol-gel method using aqueous mixtures of the corresponding metal acetates and nitrates. Homogeneous precursor gels were obtained by complexing metal ions with tartaric acid. To assist the interpretation of the results obtained the synthesis products were additionally characterized by X-ray powder diffraction (XRD) and resistivity measurements. It was determined that doping the YBa2Cu4O8 phase with chromium has a strong effect on the phase purity and superconducting properties of the synthesis products. Springer Science+Business Media, LLC., 2007 chromium substitution nationallicence sol-gel synthesis nationallicence TG/DTA nationallicence Y-124 superconductor nationallicence Nenartaviciene G. Department of General and Inorganic Chemistry, Vilnius University, Naugarduko 24, 03225, Vilnius, Lithuania aut Tõnsuaadu K. Laboratory of Inorganic Materials, Tallinn University of Technology, Ehitajate tee 5, 19086, Tallinn, Estonia aut Jasaitis D. Department of General and Inorganic Chemistry, Vilnius University, Naugarduko 24, 03225, Vilnius, Lithuania aut Beganskiene A. Department of General and Inorganic Chemistry, Vilnius University, Naugarduko 24, 03225, Vilnius, Lithuania aut Kareiva A. Department of General and Inorganic Chemistry, Vilnius University, Naugarduko 24, 03225, Vilnius, Lithuania aut Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 90/1(2007-10-01), 173-178 1388-6150 90:1<173 2007 90 10973 https://doi.org/10.1007/s10973-006-7884-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-7884-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nenartaviciene G. Department of General and Inorganic Chemistry, Vilnius University, Naugarduko 24, 03225, Vilnius, Lithuania aut NATIONALLICENCE 700 1- Tõnsuaadu K. Laboratory of Inorganic Materials, Tallinn University of Technology, Ehitajate tee 5, 19086, Tallinn, Estonia aut NATIONALLICENCE 700 1- Jasaitis D. Department of General and Inorganic Chemistry, Vilnius University, Naugarduko 24, 03225, Vilnius, Lithuania aut NATIONALLICENCE 700 1- Beganskiene A. Department of General and Inorganic Chemistry, Vilnius University, Naugarduko 24, 03225, Vilnius, Lithuania aut NATIONALLICENCE 700 1- Kareiva A. Department of General and Inorganic Chemistry, Vilnius University, Naugarduko 24, 03225, Vilnius, Lithuania aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 90/1(2007-10-01), 173-178 1388-6150 90:1<173 2007 90 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer