Strengthening of Al_2O_3-ZrO_2 Composites by HIP Sintering
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Al<SUB>2</SUB>O<SUB>3</SUB>-ZrO<SUB>2</SUB> (95/5 wt%a) composite powders have been prepared by the coprecipitation technique. Both normal sintering and capsule-free HIP sintering have been performed under various sintering conditions. The combination of normal sintering at 1798 K and HIP sintering at 1723 K enhances the bending strength of the composites to 958 MPa. Bending strength above 1 GPa is succeeded by capsule HIPing at 1623 K. The enhancement of bending strength is discussed in connection with the sintering conditions.
- The Review of High Pressure Science and Technology
The Review of High Pressure Science and Technology 7, 1087-1089, 1998
The Japan Society of High Pressure Science and Technology