Zirconium (Zr) partially stabilized zirconia (PSZ) composites were fabricated using the spark plasma sintering technique with the aim of producing medical implants with reduced metal-related artifacts in magnetic resonance imaging. Composites with compositions ranging from 100% Zr to 100% PSZ were fabricated, and they exhibited high mechanical performance. Optical microscopy and density measurements revealed that dense composites were successfully produced, irrespective of the PSZ content. Hardness and bending tests were performed to evaluate the influence of the addition of PSZ on the mechanical properties of the composites. The results showed that the hardness and bending strength increased with increasing PSZ content. The elastic modulus of the composites was higher than that predicted by the rule of mixtures, and this was due to the formation of Zr oxide around the Zr phase during sintering. It was concluded that the mechanical properties of the composites could be controlled within the range of those of monolithic Zr and monolithic PSZ, and that the use of PSZ was effective for improving the mechanical properties.

使用火花等离子体烧结技术制造了锆（Zr）部分稳定的氧化锆（PSZ）复合材料，目的是生产在磁共振成像中具有减少的金属相关伪影的医疗植入物。制备了具有从100％Zr到100％PSZ范围内的成分的复合材料，它们表现出很高的机械性能。光学显微镜和密度测量表明，无论PSZ含量如何，都能成功生产出致密的复合材料。进行了硬度和弯曲测试，以评估添加PSZ对复合材料机械性能的影响。结果表明，硬度和弯曲强度随PSZ含量的增加而增加。复合材料的弹性模量高于混合物规则所预测的弹性模量，这是由于在烧结过程中在Zr相周围形成了Zr氧化物。结论是，可将复合材料的机械性能控制在整体Zr和整体PSZ的范围内，并且PSZ的使用可有效改善机械性能。