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The relatively good thermal shock resistance of zirconia with 15 mole % titanium for quenches from below the transformation temperature of zirconia is attributed to the metal in the grain boundaries. The discrepancy between calculated and experimental thermal shock resistance of the same compositions for quenches through the transformation range is traced to the plastic behavior of these materials through the transformation range. The same type of plasticity was observed through the transformation range of zirconia‐zirconium compositions. Metals other than titanium also improved the thermal shock resistance of zirconia.
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A. Arias (1966) studied this question.
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