A novel entropy-stabilized (ES) (Ca,Sr,Ba)ZrO₃ ceramic has been designed and synthesized by pressureless sintering of CaZrO₃, SrZrO₃ and BaZrO₃ powders mixtures at 1450 °C, 1500 °C and 1550 °C for 3 h. X-ray diffraction, scanning electron microscopy and transmission electron microscopy analyses collectively indicate that a single solid solution is formed with a homogeneous distribution of metal elements after sintering at 1550 °C. The relative density and hardness of the ES (Ca,Sr,Ba)ZrO₃ ceramic sintered at 1550 °C are 97.79% and 10.84 ± 0.33 GPa, respectively. This ES (Ca,Sr,Ba)ZrO₃ exhibits lower thermal conductivity from 373 K to 1073 K than their constituting zirconates, CaZrO₃, SrZrO₃ and BaZrO₃. Most importantly, the ES (Ca,Sr,Ba)ZrO₃ ceramic possesses good corrosion resistance to TiNi alloy melt and no distinct reaction layer exists between TiNi alloy and ES (Ca,Sr,Ba)ZrO₃ ceramic in the contact region. The combination of these properties indicates that ES (Ca,Sr,Ba)ZrO₃ ceramic is promising for use as a novel crucible material for the melting of titanium alloys.

通过在1450°C，1500°C和1550°C下无压烧结CaZrO ₃，SrZrO ₃和BaZrO ₃粉末混合物，设计并合成了一种新型的熵稳定（ES）（Ca，Sr，Ba）ZrO ₃陶瓷。 3小时 X射线衍射，扫描电子显微镜和透射电子显微镜分析共同表明，在1550°C烧结后，形成的单一固溶体具有均匀分布的金属元素。在1550°C烧结的ES（Ca，Sr，Ba）ZrO ₃陶瓷的相对密度和硬度分别为97.79％和10.84±0.33 GPa。该ES（Ca，Sr，Ba）ZrO _3的热导率从构成其锆酸盐CaZrO的373 K至1073 K₃，SrZrO ₃和BaZrO ₃。最重要的是，ES（Ca，Sr，Ba）ZrO ₃陶瓷对TiNi合金熔体具有良好的耐腐蚀性，并且在接触区域中，TiNi合金与ES（Ca，Sr，Ba）ZrO ₃陶瓷之间没有明显的反应层。这些性能的组合表明，ES（Ca，Sr，Ba）ZrO ₃陶瓷有望用作新型的坩埚材料来熔化钛合金。