Open AccessAn examination of the effect of adding zirconia to bioactive glass-ceramic properties
Author(s) -
Mohsin Abbas Aswad,
Israa K. Sabree,
Ali H. S.
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1067/1/012121
Subject(s) - materials science , cubic zirconia , ceramic , biocomposite , monoclinic crystal system , bioactive glass , composite number , tetragonal crystal system , porosity , composite material , sintering , phase (matter) , mineralogy , chemical engineering , crystal structure , crystallography , chemistry , organic chemistry , engineering
Zirconia has been frequently used as a bone substitute based on its material properties and bioinert nature, which make it a suitable composite material for multiple bio applications. In this study, 45S5 bioactive glass ceramic (BGC) (45% SiO2, 24.5% CaO, 24.5% Na 2 O, 6% P 2 O 5 ) was synthesised using a melt derivation process. The biocomposite for testing was prepared by mixing 1wt% of ZrO 2 with the prepared BGC. The sample of simple BGC was sintered at 900 °C, while the composite was sintered at 1170 °C. XRD diffraction testing confirmed the formation of Na 2 Ca 2 Si 3 O 8 and Na 2 Ca 2 Si 3 O 9 phases in the structure of pure the BGC sample, while the composite displayed the emergence of tetragonal and monoclinic ZrO 2 peaks in addition to bioglass ceramic peaks. SEM testing also showed distinct differences between the structures. The results suggest that adding ZrO 2 to the bioactive glass matrix improves its mechanical properties and increases density while decreasing the porosity value.