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Microstructures and properties of 3Y-TZP/Ba0.5Sr0.5Fe12O19 composites prepared by two different methods were investigated.Ba0.5Sr0.5Fe12O19 ferrite powders were prepared by solid reaction and solgel process,respectively.They were then combined with 3Y-TZP matrix by ball-milling to obtain composite powders.The powders were cold isostatically pressed at 200 MPa after mold pressing.