A fine-grained Mg-PSZ-type material has been produced by adding MgAl2O4 spine! to a ternary Y2O3-MgO-ZrO2 alloy. A mean cubic grain size below 10 µm was achieved. Aging treatment at 1100°C and 1400°C lead to the formation of transformable tetragonal precipitates and resulted in improved toughness. Transformation toughening is the main toughening mechanism.
Preparation and Characterization of Fine-Grained (Mg-Y)-PSZ Ceramics with Spinel Additions
G de Portu;
1993
Abstract
A fine-grained Mg-PSZ-type material has been produced by adding MgAl2O4 spine! to a ternary Y2O3-MgO-ZrO2 alloy. A mean cubic grain size below 10 µm was achieved. Aging treatment at 1100°C and 1400°C lead to the formation of transformable tetragonal precipitates and resulted in improved toughness. Transformation toughening is the main toughening mechanism.File in questo prodotto:
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