Mechanical properties of a new type of apatite-containing glass-ceramic for prosthetic application
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- Kokubo, T., Ito, S., Shigematsu, M. et al. J Mater Sci (1985) 20: 2001. doi:10.1007/BF01112282
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A new type of apatite-containing glass-ceramic in the system MgO-CaO-SiO2-P2O5 can form a tight chemical bond with bones and has a high mechanical strength. The cause for its high mechanical strength was examined by comparing mechanical properties of the glass-ceramics which have an identical chemical composition and different microstructures. It was found that the mechanical strength of the apatite-containing glass-ceramics is considerably increased by the precipitation ofβ-wollastonite crystals due to an increase in fracture surface energy resulting in an increase in fracture toughness.