In this study, three methods of characterizing the damage tolerance of different zirconia-based ceramics for medical-technical applications are presented. The damage is inflicted statically, with Vickers hardness impressions and dynamically by scratching with a Rockwell diamond, as well as by means of a reproducible grinding process. The damage intensity is, in each case, successively increased.

The measured strength values as a function of the inflicted damage thus provide information on the grinding robustness of the material. This permits the determination of critical grinding parameters above which the component quality is impaired and, ultimately, the patient is endangered. The continuing pressure to reduce production costs by shortening processing times makes damage tolerant behavior of materials extremely important. Ultimately, this permits the reduction of production costs while maintaining component quality and the guarantee of future patient safety.

在这项研究中，提出了三种表征医疗技术应用中不同氧化锆基陶瓷损伤容限的方法。这种损伤是静态产生的，具有维氏硬度，而通过用罗克韦尔（Rockwell）金刚石刮擦以及通过可重复的磨削过程来动态施加。在每种情况下，破坏强度都相继增加。

因此，所测得的强度值是所造成的损伤的函数，从而提供了有关材料磨削坚固性的信息。这样就可以确定关键的磨削参数，如果超过这些参数，部件的质量将受到损害，并最终危及患者的生命。通过缩短加工时间来降低生产成本的持续压力使得材料的耐损伤性能极为重要。最终，这可以降低生产成本，同时保持组件质量并保证未来患者的安全。