YSZ∶Eu荧光应力测量法是一种新发展的、对于热障涂层应力测量具有诸多优势的方法.针对这种方法在拉应力条件下的应用缺乏实验证据而直接使用外推法的不足,利用应力平衡法研究了YSZ∶Eu内部拉应力与Eu3+荧光峰峰位的关系,验证了外推法的正确性.在不同体积比YSZ∶Eu和α-Al2O3混合烧结块体中,以红宝石荧光法测得的α-Al2O3内部应力为媒介,得到了YSZ∶ Eu内部拉应力.将其与对应的Eu3+荧光峰峰位进行线性拟合,得到了峰位随拉应力频移的系数.分析了实验误差,与压应力荧光频移系数进行了对比,确定了这两种方法得到的结果在误差范围内一致,用实验方法将YSZ∶Eu荧光应力测量法的适用范围扩展到了拉应力环境.
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