Park, JongeePark, JongeeOzturk, AbdullahMetallurgical and Materials Engineering2024-07-052024-07-05201320218-625X1793-666710.1142/S0218625X135001082-s2.0-84874810368https://doi.org/10.1142/S0218625X13500108https://hdl.handle.net/20.500.14411/434Park, Jongee/0000-0003-1415-6906; Ozturk, Abdullah/0000-0002-1525-1561; Ozturk, Abdullah/0000-0002-1525-1561Glass-ceramics containing only apatite and wollastonite crystals were produced in the system MgO-CaO-SiO2-P2O5-F by the melt casting process. The bioactivity of the glass-ceramics was determined by immersing the glass-ceramics in a simulated body fluid (SBF) and by assessing the resulting apatite formation on the free surface after various immersion durations. A 12-mu m-thick apatite layer formed on the surface of the glass-ceramic containing only apatite crystals after 20 days immersion in SBF. However, the thickness of the apatite layer formed on the surface of the glass-ceramic containing apatite and wollastonite crystals was 1 mu m. Results have shown that the bioactivity of glass-ceramic depends strongly on the type of crystal(s) developed during the glass-ceramic process and their proportion in the glassy matrix.eninfo:eu-repo/semantics/closedAccessApatite-wollastonite glass-ceramicbioactivitysimulated body fluidArticleQ4Q4201WOS:000316945500011