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材料导报  2026, Vol. 40 Issue (2): 24110106-5    https://doi.org/10.11896/cldb.24110106
  无机非金属及其复合材料 |
掺CeO2稀土钽酸盐陶瓷材料的性能研究
李凌锋1, 司瑶晨1, 王瑞达1, 刘广华2, 赵世贤1,*, 李红霞1, 李虹屿1
1 中钢集团洛阳耐火材料研究院有限公司先进耐火材料全国重点实验室,河南 洛阳 471039
2 中国联合重型燃气轮机技术有限公司,北京 100016
Study on Properties of CeO2-doped Rare Earth Tantalate Ceramics
LI Lingfeng1, SI Yaochen1, WANG Ruida1, LIU Guanghua2, ZHAO Shixian1,*, LI Hongxia1, LI Hongyu1
1 State Key Laboratory of Advanced Refractories, Sinosteel Luoyang Institute of Refractories Research Co., Ltd., Luoyang 471039, Henan, China
2 China United Gas Turbine Technology Co.,Ltd., Beijing 100016, China
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摘要 先进航空发动机对热障涂层的服役温度以及抗侵蚀性能有着更高的要求,氧化锆由于其高温红外穿透及高温相变等无法满足日益发展的需要,目前稀土钽酸盐掺杂陶瓷材料作为潜在的高温热障涂层材料而广受关注。本工作提出以四价的氧化铈(CeO2)按不同比例掺杂于(Y0.5Gd0.5)TaO4材料体系中,通过高温固相反应在1 750 ℃保温5 h,制备单斜相掺CeO2稀土钽酸盐氧化物。研究了该材料的热学和力学性能、显微结构及抗CaO-MgO-Al2O3-SiO2(CMAS)侵蚀性能。结果表明:①掺CeO2稀土钽酸盐陶瓷材料具有低的热导率(1.55 W·m-1·K-1)。②掺CeO2稀土钽酸盐陶瓷材料存在铁弹相变,有助于提高材料的断裂韧性。③较低的脆性指数(1.33 μm-1/2)提高了试样的损伤容限,阻碍材料的变形以及裂纹的扩展。④掺CeO2稀土钽酸盐材料具有优异的抗CMAS侵蚀性能。⑤掺CeO2稀土钽酸盐陶瓷材料是一种极具应用潜力的新型热障涂层材料。
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李凌锋
司瑶晨
王瑞达
刘广华
赵世贤
李红霞
李虹屿
关键词:  热障涂层  钽酸盐陶瓷  (Y0.5Gd0.5)TaO4  CeO2掺杂  热学性能  力学性能  抗CMAS侵蚀    
Abstract: In order to meet the requirements of advanced aero engines for higher service temperature and better corrosion resistance of thermal barrier coatings, monochloric phase doped CeO2 rare earth tantalate oxides were prepared by doping cerium oxide (CeO2) in (Y0.5Gd0.5)TaO4 material system with different doping ratios, and were held at 1 750 ℃ for 5 h by high temperature solid phase reaction.The thermodynamic pro-perties, microstructure and corrosion resistance of the material to CaO-MgO-Al2O3-SiO2 (CMAS) were studied.The results show that: (ⅰ) Doped CeO2 high entropy rare earth tantalate ceramic material has low thermal conductivity (1.55 W·m-1·K-1).(ⅱ) Doped CeO2 high entropy rare earth tantalate ceramic material has ferroelastic phase transition, which helps to improve the fracture toughness of the material.(ⅲ) The low brittle-index (1.33 μm-1/2) of the material increases the sample loss tolerance, impeding the deformation and crack propagation of the material.(ⅳ) Doped CeO2 high-entropy rare earth tantalate material has excellent resistance to CMAS erosion.(ⅴ) Doped CeO2 rare earth tantalate ceramic material is a new thermal barrier coating material with great application potential.
Key words:  thermal barrier coating    tantalate ceramic    (Y0.5Gd0.5)TaO4    CeO2 doping    thermic property    mechanical property    CMAS erosion resistance
出版日期:  2026-01-25      发布日期:  2026-01-27
ZTFLH:  TK265  
基金资助: 国家重点研发计划(2023YFB3711200)
通讯作者:  *赵世贤,博士,高级工程师,硕士研究生导师。主要从事先进耐火材料和结构陶瓷相关基础研究与产品开发。andyzhaosx@163.com   
作者简介:  李凌锋,硕士,任职于中钢集团洛阳耐火材料研究院有限公司,主要从事热障涂层、致密氮化硅陶瓷和先进耐火材料的研究。
引用本文:    
李凌锋, 司瑶晨, 王瑞达, 刘广华, 赵世贤, 李红霞, 李虹屿. 掺CeO2稀土钽酸盐陶瓷材料的性能研究[J]. 材料导报, 2026, 40(2): 24110106-5.
LI Lingfeng, SI Yaochen, WANG Ruida, LIU Guanghua, ZHAO Shixian, LI Hongxia, LI Hongyu. Study on Properties of CeO2-doped Rare Earth Tantalate Ceramics. Materials Reports, 2026, 40(2): 24110106-5.
链接本文:  
https://www.mater-rep.com/CN/10.11896/cldb.24110106  或          https://www.mater-rep.com/CN/Y2026/V40/I2/24110106
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