Journal ArticleAuthors: Mohammadi, Hossein; Baba Ismail, Yanny Marliana; Shariff, Khairul Anuar; Ahmad-Fauzi, Mohd Noor (2021)
The effects of cobalt (Co) substitution on the structural, physico-mechanical properties, as well as the
in vitro bioactivity and biodegradability of akermanite (Ca2MgSi2O7) are studied. The XRD patterns
showed that the Co substitution did not change the Ca2MgSi2O7 phase. The FESEM micrographs revealed
that the partial substitution of Co increased the shrinkage and density of Ca2MgSi2O7 and reduced the
grain size. The Co substitution showing the highest mechanical response was 2 mol%. However, the
mechanical properties decreased beyond 2 mol% due to the larger grain size. The in vitro degradation test
showed that Co substitution altered the degradation profile of Ca2MgSi2O7. How... 
