Abstract
The microstructure of titania-added Mg-partially-stabilized zirconia (PSZ) is dramatically influenced by thermal treatments. Effects of various sintering, heat-treatment and thermal shock cycling parameters on the microstructure of the Mg-Ti-PSZ system are described. Conditions favourable for the growth of needle-like Ti-rich reinforcements in highly thermalshock-resistant Mg-Ti-PSZ ceramics are identified. TiO2 seems to play a catalytic role in the formation of Zr-rich networks during high-temperature (1700°C) sintering of the Mg-Ti-PSZ system, quite similar to those found in Mg-PSZ, heat-treated above 1300 °C.
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Krishnamoorthy, P.R., Ramaswamy, P. & Narayana, B.H. Microstructural developments in Mg-Ti-PSZ systems. J Mater Sci 27, 1016–1022 (1992). https://doi.org/10.1007/BF01197656
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DOI: https://doi.org/10.1007/BF01197656