The Influence of Alumina Addition on the Microstructures of YSZ

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Abstract:

It is well known that the martensitic transformation of YSZ from the metastable tetragonal phase (T-phase) to the monoclinic phase (M-Phase) is accelerated in hot water (especially at 473K). Trace quantities of alumina are known to aid densification, and is also exceptionally resistant to low-temperature degradation (LTD). The current contribution describes a detailed electron microscopy investigation to determine the location of trace quantities of Al2O3 in a YSZ.

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187-190

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March 2013

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