Alumina-partially stabilized zirconia (PSZ) composites were fabricated via spark plasma sintering (SPS) technique to produce biocompatible materials with superior mechanical properties. The volume fraction of the composites covered from 100% alumina to 100% PSZ. Their sintering state was examined by optical microscopy, density measurement, and X-ray diffraction, and dense composites without any reaction phases could be fabricated, irrespective of PSZ content. Then, three-point bending tests and hardness tests were conducted. The hardness and elastic modulus agreed with the predictions based on the Voigt model and the Eshelby's equivalent inclusion model combined with the Mori-Tanaka's mean field concept, respectively. While the bending strength of the composites ranged from that of monolithic alumina to that of monolithic PSZ, the fracture toughness of the composites improved as compared with the monoliths of alumina and PSZ. We concluded that the use of alumina and PSZ was effective to fabricate the composites with high mechanical performances.

通过火花等离子体烧结（SPS）技术制备了氧化铝部分稳定的氧化锆（PSZ）复合材料，以生产具有优异机械性能的生物相容性材料。复合材料的体积分数覆盖了100％氧化铝至100％PSZ。通过光学显微镜，密度测量和X射线衍射检查了它们的烧结状态，并且可以制造没有任何反应相的致密复合材料，而与PSZ含量无关。然后，进行三点弯曲测试和硬度测试。硬度和弹性模量分别与基于Voigt模型和Eshelby等效包裹体模型以及Mori-Tanaka的平均场概念的预测一致。尽管复合材料的弯曲强度从整体氧化铝的抗弯强度到整体PSZ的抗弯强度不等，与氧化铝和PSZ整体材料相比，复合材料的断裂韧性得到了改善。我们得出的结论是，使用氧化铝和PSZ可以有效地制造具有高机械性能的复合材料。