caa a22 4500 445382880 CHVBK 20180317143022.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s10948-010-0842-5 doi (NATIONALLICENCE)springer-10.1007/s10948-010-0842-5 Microstructure of YBCO/Semicrystalline Polymer Composites and its Effect on Percolation [Elektronische Daten] [S. Bhadrakumari, P. Predeep] Ceramic-polymer composites using conducting YBa2Cu3O7−x (YBCO) powder have been fabricated. Atomic force microscopy (AFM) and Scanning electron microscopy (SEM) images are used to provide new information about the more influent microstructural features. The effect of microstructure on percolation is studied for all the composites. Results indicate that percolation and subsequent positive temperature coefficient (PTC) behavior are related to the powder characteristics, composite microstructure, and ceramic-polymer interface. The reproducibility of the resistivity—temperature behavior for the polyethylene composites upon thermal cycling is illustrated and found that the room temperature resistivity increases by about 1 order of magnitude from the first to the forth cycle. Springer Science+Business Media, LLC, 2010 Polymer-matrix composites (PMCs) nationallicence Microstructures nationallicence Electron microscopy nationallicence Surface analysis nationallicence Bhadrakumari S. Department of Physics, M.S.M. College, Kayamkulam, Kerala, India aut Predeep P. Laboratory for Unconventional Electronics and Photonics, National Institute of Technology, Calicut, Kerala, India aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/5(2011-07-01), 1403-1406 1557-1939 24:5<1403 2011 24 10948 https://doi.org/10.1007/s10948-010-0842-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0842-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bhadrakumari S. Department of Physics, M.S.M. College, Kayamkulam, Kerala, India aut NATIONALLICENCE 700 1- Predeep P. Laboratory for Unconventional Electronics and Photonics, National Institute of Technology, Calicut, Kerala, India aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/5(2011-07-01), 1403-1406 1557-1939 24:5<1403 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer