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首页> 外文会议>AIAA SciTech Forum and Exposition >Doped 8 Yttria-Stabilized Zirconia for Temperature Measurements in Thermal Barrier Coatings using Phosphor Thermometry
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Doped 8 Yttria-Stabilized Zirconia for Temperature Measurements in Thermal Barrier Coatings using Phosphor Thermometry

机译：掺杂8％氧化钇稳定的氧化锆，用于使用磷光温度计的热障涂层温度测量

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Thermal Barrier Coatings (TBCs) protect and insulate the metallic components in turbine engines and are used to achieve higher turbine inlet temperatures, resulting in an increase in combined engine cycle efficiency. This ultimately lowers NOx emissions and fuel consumption. As the major failure mechanisms determining lifetime are thermally activated during engine operation, uncertainty in temperature measurements affects significantly the accuracy of lifetime predictions. Early detection of TBC spallation symptoms, such as local delamination induced temperature changes, can reduce forced engine outages, thus leading to significant increases in engine availability. Phosphor Thermometry is a promising method for TBC sub-surface temperature measurements, using embedded phosphor dopants in the top coat. In this work, a luminescence model is proposed to support experimental results on an Erbium-doped 8% Yttria-Stabilized Zirconia TBC. The results are compared up to 900°C. The outcomes intend to provide an advancement to temperature measurements into the depth of TBCs for enhanced turbine blade monitoring, in operating conditions.
机译：热阻挡涂层（TBCS）保护和绝缘涡轮发动机中的金属部件，用于实现更高的涡轮机入口温度，从而增加了发动机循环效率的增加。这最终降低了NOx排放和油耗。由于在发动机操作期间确定寿命的主要故障机制在发动机操作期间热激活，温度测量中的不确定性会影响寿命预测的准确性。早期检测TBC散发症状，如局部分层诱导的温度变化，可以减少强制发动机的中断，从而导致发动机可用性显着增加。磷光体温度是用于TBC子表面温度测量的有希望的方法，使用顶层嵌入式磷光体掺杂剂。在这项工作中，提出了一种发光模型，以支持对掺杂的8％yTTRIA稳定的氧化锆TBC上的实验结果。结果比较高达900°C。结果打算在运行条件下，为增强涡轮机叶片监测的增强涡轮机叶片监测的TBC深度提供温度测量。

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