Preliminary Study on the Bioactivity Properties of Cordierite/β-Wollastonite Biocomposite Ceramics

Abstract

The bioactivity properties of pure cordierite (C), pure β-wollastonite (W), and cordierite/β-wollastonite (CW) biocomposite ceramics were studied. Cordierite was prepared via melting, while β-wollastonite was prepared via the wet milling method. A bioactivity test showed that hydroxyapatite (HA) was non-existent in the pure cordierite sample after seven days of being soaked in simulated body fluid (SBF). On the other hand, the cordierite/β-wollastonite bioceramics showed that HA formation has entirely covered the surface of these samples. The XRD patterns showed that the crystallinity of W and CW samples has decreased due to the amorphous calcium phosphate (ACP) formation after seven days of soaking. SEM tests revealed that more ACP microstructures were present in cordierite/β-wollastonite samples than those in pure β-wollastonite. The effect of cordierite and β-wollastonite in biocomposite ceramics is described in this paper.