Structural investigation of nanohydroxyapatite doped with Y3+ and F- ions

Date

2009-06-01

Author

Basar, B.
Evis, Zafer

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

66
views

0
downloads

Pure and 2.5 mol.-% Y3+ and F- doped nanohydroxyapatites were synthesised by a precipitation method and sintered at 900 and 1100 degrees C to investigate their densification and structure. X-ray diffraction and Fourier transform infrared spectroscopy methods were performed to identify the presence of phases and bonds after the sintering respectively. Densification of hydroxyapatite was improved by the addition of these ions. No second phases were observed by X-ray diffraction method. Structure of the materials was hexagonal. Fourier transform infrared spectroscopy investigations showed that the Y3+ and F- doped hydroxyapatites had F- bonds in addition to OH- bonds after the sintering.

Subject Keywords

Mechanical Engineering, General Materials Science, Mechanics of Materials, Condensed Matter Physics

URI

https://hdl.handle.net/11511/40527

Journal

MATERIALS SCIENCE AND TECHNOLOGY

DOI

https://doi.org/10.1179/174328408x317255

Collections

Department of Engineering Sciences, Article

Suggestions

OpenMETU
Core

Preparation and characterization of zeolite framework stabilized cuprous oxide nanoparticles Zahmakiran, Mehmet; Özkar, Saim (Elsevier BV, 2009-05-15) Zeolite framework stabilized copper(I) oxide nanoparticles (4.8 +/- 2.6 nm) were prepared for the first time by using a four step procedure: the ion exchange of Cu(2+) ions with the extra framework Na(+) ions in Zeolite-Y, the reduction of the Cu(2+) ions within the cavities of zeolite with sodium borohydride in aqueous solution, the dehydration of Zeolite-Y with the copper(0) nanoclusters, and the oxidation of intrazeolite copper(0) nanoclusters by O(2) at room temperature. Zeolite stabilized copper(I) oxi...
Formation of TiB2 by volume combustion and mechanochemical process Bilgi, Eda; ÇAMURLU, HASAN ERDEM; Akgun, Baris; Topkaya, Yavuz Ali; SEVİNÇ, NACİ (Elsevier BV, 2008-04-01) Titanium diboride was produced both by volume combustion synthesis (VCS) and by mechanochemical synthesis (MCP) through the reaction of TiO2, B2O3 and Mg. VCS products, expected to be composed of TiB2 and MgO, were found to contain also side products such as Mg2TiO4, Mg3B2O6, MgB2 and TiN. HCl leaching was applied to the reaction products with the objective of removing MgO and the side products. Formation of TiN could be prevented by conducting the VCS under an argon atmosphere. Mg2TiO4 did not form when 40...
Investigation of microstructure-ultrasonic velocity relationship in SiCp-reinforced aluminium metal matrix composites Gür, Cemil Hakan (Elsevier BV, 2003-11-25) Twenty-one sets of specimens were fabricated by hot pressing powder mixtures containing various volume and size combinations of pure Al and SiC particles. Neither heat treatment nor secondary deformation processes were applied. The microstructures of the specimens were characterised by optical and scanning electron microscopy. Using a 10 MHz probe, the velocity of ultrasonic longitudinal waves was measured. The results show that in general the ultrasonic velocity increases with an increase in SiC content. H...
Conducting polymers of decanedioic acid bis-(4-pyrrol-1-yl-phenyl) ester Çırpan, Ali; Toppare, Levent Kamil (Elsevier BV, 2004-05-15) A dipyrrolyl monomer was synthesized via the reaction between 4-pyrrol-1-yl phenol and decanedioyl dichloride. The electrochemical behavior of this monomer was studied. Polymerization of decanedioic acid bis-(4-pyrrol-1-yi-phenyl) ester (DAPE) was achieved by chemical and constant current electrolyses methods. Copolymerization of DAPE with thiophene was performed by constant potential electrolysis in acetonitrile-tetrabutylammonium tetrafluoroborate (TBAFB), dichloromethane-TBAFB, solvent-electrolyte couple...
Study of the optical and photoelectrical properties of TlGaSeS layered single crystals Delice, S.; Hasanlı, Nızamı (Elsevier BV, 2017-06-01) Transmission spectra (7) of TIGaSeS crystals in the photon energy (hv) range 1.38-2.38 eV are used to determine the energy gap. The indirect band gap of 2.30 eV was established employing the photon energy dependence of the first derivative dT/d(hv) and the photon energy dependence of absorption coefficient. In order to obtain information about the defect states in the energy gap of TlGaSeS crystals, photoconductivity (PC) measurements are performed in the 140-300 K range. Photoconductivity spectra in the ph...

Citation Formats

B. Basar and Z. Evis, “Structural investigation of nanohydroxyapatite doped with Y3+ and F- ions,” MATERIALS SCIENCE AND TECHNOLOGY, pp. 794–798, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40527.