naa a22 4500 510770096 CHVBK 20180411083210.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11837-013-0601-8 doi (NATIONALLICENCE)springer-10.1007/s11837-013-0601-8 Nanomechanical Properties and Thermal Conductivity Estimation of Plasma-Sprayed, Solid-Oxide Fuel Cell Components: Ceria-Doped, Yttria-Stabilized Zirconia Electrolyte [Elektronische Daten] [Neelima Mahato, Samir Sharma, Anup Keshri, Amanda Simpson, Arvind Agarwal, Kantesh Balani] Solid-oxide fuel cell components were fabricated using an atmospheric plasma spraying method. Lanthanum strontium manganite (LSM), 8mol% yttria-stabilized zirconia (8YSZ), ceria (CeO2), and YSZ-NiO powders were used as feedstock materials for layered deposition of cathode, electrolyte, and anode, respectively, to make a complete cell. In this work, two types of electrolyte materials were investigated, viz., 8YSZ and the one containing 10wt.% CeO2. Because a high densification is expected in the solid oxide electrolyte (as opposed to observed porosity of ~27%), current work focuses only on the nanomechanical evaluation of the same. Scanning electron microscopy (SEM) images show the retention of nanocrystallinity in the plasma-sprayed deposits. Elemental analyses via energy-dispersive spectroscopy revealed chemically distinct identities of the cell components ruling out diffusion or reaction at the boundaries. Porosity values vary between 29.0% and 35.4% in anode and 42.9-48.4% in cathode, indicating appreciable achievement for high performance of electrode materials. The addition of 10wt.% ceria to 8YSZ has shown enhancement in the elastic modulus and hardness of the electrolyte material by 18.4GPa and 1.6GPa, respectively. Theoretical estimation of thermal conductivity of the plasma-sprayed materials has been found to be in the order of 2.27-4.45W/mK. TMS, 2013 Mahato Neelima High Temperature Fuel Cell Laboratory, Department of Materials Science and Engineering, Indian Institute of Technology, Kanpur, 208016, Kanpur, India aut Sharma Samir High Temperature Fuel Cell Laboratory, Department of Materials Science and Engineering, Indian Institute of Technology, Kanpur, 208016, Kanpur, India aut Keshri Anup Bharat Heavy Electrical Limited, Hyderabad, India aut Simpson Amanda Hysitron Inc., 9625 West 76th Street, 55344, Minneapolis, MN, USA aut Agarwal Arvind Mechanical and Materials Engineering, Florida International University, 33174, Miami, FL, USA aut Balani Kantesh High Temperature Fuel Cell Laboratory, Department of Materials Science and Engineering, Indian Institute of Technology, Kanpur, 208016, Kanpur, India aut JOM Springer US; http://www.springer-ny.com 65/6(2013-06-01), 749-762 1047-4838 65:6<749 2013 65 11837 https://doi.org/10.1007/s11837-013-0601-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11837-013-0601-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mahato Neelima High Temperature Fuel Cell Laboratory, Department of Materials Science and Engineering, Indian Institute of Technology, Kanpur, 208016, Kanpur, India aut NATIONALLICENCE 700 1- Sharma Samir High Temperature Fuel Cell Laboratory, Department of Materials Science and Engineering, Indian Institute of Technology, Kanpur, 208016, Kanpur, India aut NATIONALLICENCE 700 1- Keshri Anup Bharat Heavy Electrical Limited, Hyderabad, India aut NATIONALLICENCE 700 1- Simpson Amanda Hysitron Inc., 9625 West 76th Street, 55344, Minneapolis, MN, USA aut NATIONALLICENCE 700 1- Agarwal Arvind Mechanical and Materials Engineering, Florida International University, 33174, Miami, FL, USA aut NATIONALLICENCE 700 1- Balani Kantesh High Temperature Fuel Cell Laboratory, Department of Materials Science and Engineering, Indian Institute of Technology, Kanpur, 208016, Kanpur, India aut NATIONALLICENCE 773 0- JOM Springer US; http://www.springer-ny.com 65/6(2013-06-01), 749-762 1047-4838 65:6<749 2013 65 11837 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer