caa a22 4500 463224396 CHVBK 20180405153222.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s10853-006-1299-6 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1299-6 Hot-pressed hydroxylapatite/monoclinic zirconia composites with improved mechanical properties [Elektronische Daten] [Zafer Evis, Robert Doremus] Composites of hydroxylapatite (HA) and monoclinic zirconia were hot-pressed at 1100°C and 1200°C under vacuum to study the phase transformations and the mechanical properties. X-ray diffraction results showed a higher phase transformation from monoclinic-ZrO2 to tetragonal-ZrO2 when the sintering temperature increased from 1100°C to 1200°C. HA decomposed faster when the amount of ZrO2 in the composites increased. Moreover, small amount of α-TCP and CaZrO3 was observed in the composites hot-pressed at 1200°C. Hot-pressing at 1100°C resulted in better mechanical properties than the hot-pressing at 1200°C because of less reaction between HA and zirconia at 1100°C. 40wt% monoclinic zirconia and HA composite hot-pressed at 1100°C resulted in promising mechanical properties which are 6.5GPa of Vickers μ-hardness, 2.23MPa√m of fracture toughness, and 66MPa of diametral strength. Springer Science+Business Media, LLC, 2006 Evis Zafer Department of Engineering Sciences, Middle East Technical University, 06531, Ankara, Turkey aut Doremus Robert Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, 12180, Troy, NY, USA aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/7(2007-04-01), 2426-2431 0022-2461 42:7<2426 2007 42 10853 https://doi.org/10.1007/s10853-006-1299-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1299-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Evis Zafer Department of Engineering Sciences, Middle East Technical University, 06531, Ankara, Turkey aut NATIONALLICENCE 700 1- Doremus Robert Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, 12180, Troy, NY, USA aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/7(2007-04-01), 2426-2431 0022-2461 42:7<2426 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer