caa a22 4500 463233891 CHVBK 20180405153250.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10853-006-0474-0 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0474-0 Crystallite size study of nanocrystalline hydroxyapatite and ceramic system with titanium oxide obtained by dry ball milling [Elektronische Daten] [C. Silva, M. Graça, M. Valente, A. Sombra] High energy dry ball milling has been used to produce nanocrystallite powders of Hydroxyapatite (HAP) using the starting materials Ca(H2PO4)2 and Ca(OH)2. The calcium phosphate system with titanium (CaP-Ti) were prepared with the raw materials Ca(H2PO4)2 and TiO2. The HAP was obtained after a couple of hours of milling (5, 10 and 15h) and in the reaction with CaP-Ti was obtained after 5h of milling. The HAP and the ceramic calcium phosphate with titanium (CaP-Ti) were studied by X-Ray powder Diffraction and Scanning Electron Microscopy (SEM). The grain size analysis through XRD shows that the particle size of HAP increase of the milling time and the size of CaTi4P6O24 decrease with the increase of the milling time. Springer Science+Business Media, LLC, 2007 Silva C. Metallurgical and Materials Engineering Department, Federal University of Ceará, Campus do Pici, 714 Block, 60455-760, Fortaleza, Ceara, Brazil aut Graça M. Department Physics, University of Aveiro, 3810-193, Aveiro, Portugal aut Valente M. Department Physics, University of Aveiro, 3810-193, Aveiro, Portugal aut Sombra A. Telecommunications and Materials Science and Engineering Laboratory (LOCEM), Department of Physics, Federal University of Ceará, Campus do Pici, Postal Code 6030, 60455-760, Fortaleza, Ceara, Brazil aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/11(2007-06-01), 3851-3855 0022-2461 42:11<3851 2007 42 10853 https://doi.org/10.1007/s10853-006-0474-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0474-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Silva C. Metallurgical and Materials Engineering Department, Federal University of Ceará, Campus do Pici, 714 Block, 60455-760, Fortaleza, Ceara, Brazil aut NATIONALLICENCE 700 1- Graça M. Department Physics, University of Aveiro, 3810-193, Aveiro, Portugal aut NATIONALLICENCE 700 1- Valente M. Department Physics, University of Aveiro, 3810-193, Aveiro, Portugal aut NATIONALLICENCE 700 1- Sombra A. Telecommunications and Materials Science and Engineering Laboratory (LOCEM), Department of Physics, Federal University of Ceará, Campus do Pici, Postal Code 6030, 60455-760, Fortaleza, Ceara, Brazil aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/11(2007-06-01), 3851-3855 0022-2461 42:11<3851 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer