Young’s modulus and damping of partially sintered and almost fully dense zirconia ceramics (tetragonal zirconia polycrystals with 3 mol.% yttria), obtained by firing to different temperatures (range 1000–1400°C), have been determined via impulse excitation, and the evolution of Young’s modulus and damping of partially sintered zirconia with temperature has been monitored from room temperature to 1400°C and back to room temperature. The room-temperature Young’s modulus of the partially sintered materials obeys the Pabst-Gregorová exponential prediction, which is relatively unusual for partially sintered materials. With increasing temperature Young’s modulus decreases, until the original firing temperature is exceeded and sintering (densification) continues, resulting in a steep Young’s modulus increase. During heating and cooling the temperature dependence obeys a master curve with a typical inflection point at approximately 200 °C, the temperature where damping (internal friction) exhibits a maximum. The reasons for this characteristic behavior of doped zirconia are recalled.

已通过脉冲激发确定了部分烧结且几乎完全致密的氧化锆陶瓷（氧化钇含量为3 mol。％的四边形氧化锆多晶体）的杨氏模量和阻尼，方法是通过脉冲激发来确定杨氏模量和阻尼从室温到1400°C再回到室温，监测了杨氏模量和部分烧结的氧化锆的阻尼随温度的变化。部分烧结的材料的室温杨氏模量符合Pabst-Gregorová指数的预测，这对于部分烧结的材料是相对罕见的。随着温度的升高，杨氏模量降低，直到超过原始烧成温度并且烧结（致密化）继续进行，导致急剧的杨氏模量增加。在加热和冷却过程中，温度依赖性遵循一条主曲线，该曲线的典型拐点约为200°C，在该温度下阻尼（内摩擦）表现出最大值。回顾了这种掺杂的氧化锆的特征行为的原因。