Abstract
In previous work by the authors it was found that an electric field of {approximately}1 kV/cm significantly reduced the plastic flow and fracture stresses of polycrystalline NaCl at room temperature. Subsequent studies determined that the electric field also lowered the brittle-to-ductile transition temperature and reduced the flow stress and increased the elongation at elevated temperatures. The objective of the present investigation was to determine whether an electric field has an influence on the superplastic (SP) deformation of yttria-stabilized, tetragonal ZrO{sub 2} (Y-TZP). Attention was directed to the effect of the field on the magnitude of the flow stress, the total elongation, grain growth and cavitation.
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