Abstract
We are currently developing machinable and load-bearing mica-based glass-ceramics for use in restorative dental surgery. In this paper we present the results of an ambient temperature small angle neutron scattering (SANS) study of several such ceramics with chemical compositions chosen to optimise machinability and strength. The SANS spectra are all dominated by scattering from the crystalline–amorphous phase interface and exhibit Q −4 dependence (Porod scattering) indicating that, on a 100 Å scale, the surface of the crystals is smooth.
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