Dielectric Properties of Calcium Phosphate Ceramics

  • Omer KAYGILI Firat University
  • Serhat KESER Firat University
  • Tankut ATES Firat University
  • Sevda KIRBAG Firat University
  • Fahrettin YAKUPHANOGLU Firat University
Keywords: calcium phosphates, crystal structure, dielectric properties


Calcium phosphate ceramics with various Ca/P ratios of 1, 2, 3, 4 and 8 were synthesized via sol-gel route. The effects of Ca/P molar ratio on structural, morphological, dielectric and antimicrobial properties were investigated in detail using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy and dielectric measurements. The Ca/P molar ratio significantly affects the crystal structure and phase composition. The crystallite size, lattice parameters and volume of the unit cell were remarkably affected by the change in the Ca/P molar ratio. The microstructure is changed with increasing the Ca/P molar ratio. The relative permittivity and alternating current conductivity gradually decrease for the samples having the Ca/P ratios higher than 2. The dielectric loss decreases gradually with the increase of the molar ratio of Ca/P.

DOI: http://dx.doi.org/10.5755/j01.ms.22.1.7222

Author Biographies

Omer KAYGILI, Firat University
Department of Physics
Serhat KESER, Firat University
Department of Chemistry
Tankut ATES, Firat University
Department of Physics
Sevda KIRBAG, Firat University
Department of Biology
Fahrettin YAKUPHANOGLU, Firat University
Department of Physics