In this study, the effect of CaZrO₃ additives on the phase and microstructure of BaZrO₃ refractory were investigated as well as the interaction with titanium alloy melts. Results revealed that no second phase was observed in the BaZrO₃ refractory with 10 and 20 mol% CaZrO₃ additives, respectively, and the incorporation CaZrO₃ additives promoted the densification and the growth of grains due to the generation of BaZrO₃‐CaZrO₃ solid solutions. Whereas, the appearance of CaZrO₃ phase was in the BaZrO₃ refractory with 30 mol% additive, indicating that the additive content excessed the solid solubility limit in the BaZrO₃ refractory. Interaction analysis indicated that CaZrO₃ additive could improve the performance of BaZrO₃ refractory for resisting the penetration of Ti₂Ni alloy melt. Meanwhile, an increasing extent of melt contamination by the BaZrO₃ refractory was also detected with the increasing content of CaZrO₃ additive. According to the thermodynamic calculation, an obvious increase in Gibbs free energy of formation for the BaZrO₃ refractory was confirmed with the CaZrO₃ additive, resulting in the increasing extent of the dissolution‐corrosion between the refractory and the titanium alloy melts.

中文翻译：

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BaZrO3-CaZrO3耐火材料的相和组织演变及其与钛合金熔体的相互作用

在这项研究中，研究了CaZrO ₃添加剂对BaZrO ₃耐火材料的相和微观结构的影响以及与钛合金熔体的相互作用。结果表明，分别使用10和20 mol％CaZrO ₃添加剂的BaZrO ₃耐火材料中没有观察到第二相，并且由于生成BaZrO ₃ -CaZrO ₃固体，CaZrO ₃添加剂的掺入促进了晶粒的致密化和晶粒长大。解决方案。而CaZrO ₃相的出现是在BaZrO _3中含30 mol％添加剂的耐火材料，表明该添加剂的含量超过了BaZrO ₃耐火材料中的固溶极限。相互作用分析表明，CaZrO ₃添加剂可改善BaZrO ₃耐火材料的抗Ti ₂ Ni合金熔体渗透性能。同时，随着CaZrO ₃添加剂含量的增加，BaZrO ₃耐火材料对熔体的污染程度也有所增加。根据热力学计算，CaZrO ₃证实了BaZrO ₃耐火材料的吉布斯自由形成能明显增加。 添加剂，导致耐火材料和钛合金熔体之间的溶解腐蚀程度增加。