caa a22 4500 606196218 CHVBK 20210128100923.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s10934-015-9919-7 doi (NATIONALLICENCE)springer-10.1007/s10934-015-9919-7 Preparation and characterization of stoichiometric zirconium carbide foams by direct foaming of zirconia sols [Elektronische Daten] [Fei Li, Mengshi Liang, Xi-Fei Ma, Xiao Huang, Guo-Jun Zhang] The studies on ultra high temperature ceramic foams are very limited due to the harsh synthesis conditions and the lack of appropriate preceramic precursors. In this work, highly porous stoichiometric zirconium carbide foams are prepared by direct foaming of zirconia sols followed by carbothermal reduction at 1500°C under argon. The microstructure of the obtained ZrC foams can be tailored by controlling the viscosities of the sols, the concentrations of the blowing and curing agents. The ZrC foams can be prepared with open- or closed-cell structure in a controllable manner. The densities of ZrC foams vary from 0.12 to 0.53g/cm3, while the porosities vary from 93.0 to 67.6% correspondingly. Springer Science+Business Media New York, 2015 Ultra high temperature ceramic foams nationallicence Zirconium carbide nationallicence Direct foaming nationallicence Carbothermal reduction nationallicence Li Fei State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, 200050, Shanghai, China aut Liang Mengshi State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, 200050, Shanghai, China aut Ma Xi-Fei State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, 200050, Shanghai, China aut Huang Xiao State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, 200050, Shanghai, China aut Zhang Guo-Jun State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, 200050, Shanghai, China aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/2(2015-04-01), 493-500 1380-2224 22:2<493 2015 22 10934 https://doi.org/10.1007/s10934-015-9919-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-015-9919-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Fei State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, 200050, Shanghai, China aut NATIONALLICENCE 700 1- Liang Mengshi State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, 200050, Shanghai, China aut NATIONALLICENCE 700 1- Ma Xi-Fei State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, 200050, Shanghai, China aut NATIONALLICENCE 700 1- Huang Xiao State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, 200050, Shanghai, China aut NATIONALLICENCE 700 1- Zhang Guo-Jun State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, 200050, Shanghai, China aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/2(2015-04-01), 493-500 1380-2224 22:2<493 2015 22 10934