caa a22 4500 475783328 CHVBK 20180406123651.0 cr unu---uuuuu 170329e20001101xx s 000 0 eng 10.1023/A:1008915510976 doi (NATIONALLICENCE)springer-10.1023/A:1008915510976 Synthesis and characterization of functional gradient materials using Indian corals [Elektronische Daten] [I. Manjubala, M. Sivakumar, T. Sampathkumar, K. Rao] The partial conversion of coralline hydroxyapatite (HA) into tricalcium phosphate (TCP) catalyzed by the thermal decomposition of silver oxide was investigated. The thermal analysis of HA powder mixed with 5 mol % Ag2O indicated the decomposition of silver oxide to be around 550°C in the presence of HA. Subsequently a functional gradient structure was formed by spreading silver oxide on one surface of the HA compact of diameter 10 mm and then firing at 700°C in air. The X-ray powder diffraction analysis confirmed the formation of α-TCP induced by the Ag2O decomposition. The content of α-TCP of the sintered pellet was found to decrease with the increasing depth from the surface of the pellet. In vitro solubility study in phosphate buffer of pH 7.2 showed the stability of the biphasic material as in between HA and TCP. © 2000 Kluwer Academic Publishers Kluwer Academic Publishers, 2000 Manjubala I. Materials Science Center, Department of Nuclear Physics, University of Madras, Guindy Campus, 600 025, Chennai, India aut Sivakumar M. Materials Science Center, Department of Nuclear Physics, University of Madras, Guindy Campus, 600 025, Chennai, India aut Sampathkumar T. Materials Science Center, Department of Nuclear Physics, University of Madras, Guindy Campus, 600 025, Chennai, India aut Rao K. Materials Science Center, Department of Nuclear Physics, University of Madras, Guindy Campus, 600 025, Chennai, India aut Journal of Materials Science: Materials in Medicine Kluwer Academic Publishers 11/11(2000-11-01), 705-709 0957-4530 11:11<705 2000 11 10856 https://doi.org/10.1023/A:1008915510976 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008915510976 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Manjubala I. Materials Science Center, Department of Nuclear Physics, University of Madras, Guindy Campus, 600 025, Chennai, India aut NATIONALLICENCE 700 1- Sivakumar M. Materials Science Center, Department of Nuclear Physics, University of Madras, Guindy Campus, 600 025, Chennai, India aut NATIONALLICENCE 700 1- Sampathkumar T. Materials Science Center, Department of Nuclear Physics, University of Madras, Guindy Campus, 600 025, Chennai, India aut NATIONALLICENCE 700 1- Rao K. Materials Science Center, Department of Nuclear Physics, University of Madras, Guindy Campus, 600 025, Chennai, India aut NATIONALLICENCE 773 0- Journal of Materials Science: Materials in Medicine Kluwer Academic Publishers 11/11(2000-11-01), 705-709 0957-4530 11:11<705 2000 11 10856 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer