caa a22 4500 463222474 CHVBK 20180405153216.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10853-007-1696-5 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1696-5 A novel method for producing open-cell Al2O3-ZrO2 ceramic foams with controlled cell structure [Elektronische Daten] [Jing-yuan Yu, Xu-dong Sun, Qiang Li, Xiao-dong Li] A novel method was introduced to prepare open-cell Al2O3-ZrO2 ceramic foams with controlled cell structure. This method used epispastic polystyrene (EPS) spheres to array ordered templates and centrifugal slip casting in the interstitial spaces of the EPS template to obtain cell struts with high packing density. Aqueous Al2O3-ZrO2 slurries with up to 50vol.% solid contents were prepared and centrifuged at acceleration of 2,860g. The effect of the solid contents of slurries on segregation phenomena of different particles and green compact uniformity were investigated. In multiphase system, the settling velocities of Al2O3 and ZrO2 particles were calculated. Theory analysis and calculated results both indicated segregation phenomenon was hindered for slurries with 50vol.% solid content. The cell struts of sintered products had high green density (61.5%TD), sintered density (99.1%TD) and homogeneous microstructures after sintered at 1,550°C for 2h. The cell size and porosity of Al2O3-ZrO2 ceramic foams can be adjusted by changing the size of EPS spheres and the load applied on them during packing, respectively. When the porosity increased from 75.3% to 83.1%, the compressive strength decreases from 3.82 to 2.07MPa. Springer Science+Business Media, LLC, 2007 Yu Jing-yuan Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, 110004, Shenyang, China aut Sun Xu-dong Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, 110004, Shenyang, China aut Li Qiang Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, 110004, Shenyang, China aut Li Xiao-dong Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, 110004, Shenyang, China aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/19(2007-10-01), 8215-8221 0022-2461 42:19<8215 2007 42 10853 https://doi.org/10.1007/s10853-007-1696-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1696-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yu Jing-yuan Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, 110004, Shenyang, China aut NATIONALLICENCE 700 1- Sun Xu-dong Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, 110004, Shenyang, China aut NATIONALLICENCE 700 1- Li Qiang Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, 110004, Shenyang, China aut NATIONALLICENCE 700 1- Li Xiao-dong Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, 110004, Shenyang, China aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/19(2007-10-01), 8215-8221 0022-2461 42:19<8215 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer