Er_xTi_0.1Zr_0.9–xO_2–1.5x (x = 0.04, 0.05, 0.06, 0.07, 0.08) ceramics were synthesized by a solid-state reaction method. The influence of the Er³⁺ addition on the phase composition, Vickers hardness, fracture toughness, and thermal conductivity of this ceramic material was investigated. The X-ray diffraction results reveal that the c-ZrO₂ content increases from 1.85 vol% to 33.89 vol%, and the percentage of t-ZrO₂ decreases from 98.15 vol% to 66.11 vol% with the increase in Er³⁺ content from 4 mol% to 8 mol%. Moreover, the addition of Er³⁺ is beneficial to the volume expansion of the unit cell. At the same time, the incorporation of Er³⁺ weakens the coordination of oxygen ions around the metal cations, resulting in a corresponding decrease in the tetragonality of the t-ZrO₂. The Vickers hardness and fracture toughness of the Er_xTi_0.1Zr_0.9–xO_2–1.5x ceramics show increasing and decreasing trends, respectively. The thermal conductivity has a significant decline due to point defects caused by the Er³⁺ doping. The 8ETZ ceramic exhibits the highest Vickers hardness (12.7 GPa), the lowest fracture toughness (7.6 MPa⋅m^1/2), and the lowest average thermal conductivity (1.85 W/(m·K)) in the temperature range of 200–1000 °C. All of the above properties are higher than those of the Y₂O₃-stabilized ZrO₂ ceramic.

 采用固相反应法合成了Er _x Ti _0.1 Zr _{0.9– x} O _{2–1.5 x} ( x = 0.04, 0.05, 0.06, 0.07, 0.08) 陶瓷。研究了添加Er ³⁺对该陶瓷材料的相组成、维氏硬度、断裂韧性和热导率的影响。X射线衍射结果表明，随着Er ³⁺含量的增加，c-ZrO ₂的含量从1.85 vol%增加到33.89 vol%，t-ZrO ₂的百分比从98.15 vol%降低到66.11 vol% 。 4 摩尔% 至 8 摩尔%。此外，添加 Er ³⁺有利于晶胞的体积膨胀。同时，Er ³⁺的掺入削弱了氧离子在金属阳离子周围的配位，导致t-ZrO ₂的四方性相应降低。_{Er x} Ti _0.1 Zr _{0.9– x} O _{2–1.5 x}陶瓷的维氏硬度和断裂韧性分别呈上升和下降趋势。^{由于Er 3+}掺杂引起的点缺陷，热导率显着下降。8ETZ陶瓷的维氏硬度最高（12.7 GPa），断裂韧性最低（7.6 MPa·m ^1/2)，以及 200–1000 °C 温度范围内的最低平均热导率 (1.85 W/(m·K))。上述所有性能均高于Y ₂ O ₃稳定化ZrO ₂陶瓷的性能。