The research work has demonstrated the effect of hydrothermal ageing ([Formula: see text]C, 40 h, 1.034 bar) on friction and wear behavior of SrO-doped zirconia toughened alumina (ZTA) composite. Surface topography and wear regime behavior are established in the perspective of ageing time, load, phase transformation and toughening phenomena. The estimated critical load is confirming the expedition of mild to severe wear in the presence of microcrack formation during adhesive and abrasive wear between SrO-doped ZTA (disc) and ZrO2 (ball) tribo couples, where adhesion between the SrO–ZTA disc and ZrO2 ball results in transfer of ZrO2 particles from ball to disc. Roughness parameters ([Formula: see text], [Formula: see text]) are elucidated to understand the influence of load and ageing conditions, as well as the in vitro bioactivity of sintered specimens is assessed in simulative body fluid (SBF) solution.

中文翻译：

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水热老化 SrO掺杂 ZTA 复合材料的临界载荷和磨损状态

研究工作已经证明了水热老化（[公式：见正文]C，40 h，1.034 bar）对 SrO 掺杂氧化锆增韧氧化铝 (ZTA) 复合材料的摩擦和磨损行为的影响。从老化时间、载荷、相变和增韧现象的角度建立表面形貌和磨损状态行为。估计的临界载荷证实了在 SrO 掺杂的 ZTA（圆盘）和 ZrO 之间的粘附和磨料磨损期间存在微裂纹形成的情况下轻度到重度磨损的加速2（球）摩擦偶，其中 SrO-ZTA 圆盘和 ZrO 之间的粘附2球导致 ZrO 的转移2从球到圆盘的粒子。阐明粗糙度参数（[公式：见正文]，[公式：见正文]）以了解负荷和老化条件的影响，以及在模拟体液 (SBF) 溶液中评估烧结样品的体外生物活性。