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Composite ceramic material as well as preparation method and application thereof
The invention belongs to the technical field of thermal barrier coatings, and provides a composite ceramic material and a preparation method and application thereof. The composite ceramic material comprises Ln2 (CexZr < 1-x >) 2O7 and Zr < 1-y > LnyO < 2-delta >, wherein x is more than or equal to 0 and less than or equal to 1, y is more than or equal to 0.02 and less than or equal to 0.1, delta is y/2, and the molar ratio of Ln2 (CexZr1-x) 2O7 to Zr1-yLnyO2-delta is (0.8-1.2): 1. Zirconium oxide and a zirconate-based ceramic material system are subjected to rare earth doping modification to form two rare earth ceramic materials of Ln2 (CexZr1-x) 2O7 and Zr1-yLnyO2-delta, then the two materials are compounded according to the molar ratio close to eutectic components, and a novel thermal barrier coating material system with high-temperature sintering resistance, low thermal conductivity and a toughening effect is formed. And the comprehensive service performance of the thermal barrier coating is improved.
本发明属于热障涂层技术领域，提供了一种复合陶瓷材料及其制备方法和应用。复合陶瓷材料包含Ln2(CexZr1‑x)2O7和Zr1‑yLnyO2‑δ；其中，0≤x≤1，0.02≤y≤0.1，δ＝y/2，Ln2(CexZr1‑x)2O7和Zr1‑yLnyO2‑δ的摩尔比为0.8～1.2：1。本发明对氧化锆和锆酸盐基陶瓷材料体系进行稀土掺杂改性，形成Ln2(CexZr1‑x)2O7和Zr1‑yLnyO2‑δ两种稀土陶瓷材料，然后将两种材料以共晶成分附近的摩尔比进行复合，形成了兼顾抗高温烧结、低热导率和增韧效应的新型热障涂层材料体系，实现了热障涂层综合服役性能的提升。
Composite ceramic material as well as preparation method and application thereof
The invention belongs to the technical field of thermal barrier coatings, and provides a composite ceramic material and a preparation method and application thereof. The composite ceramic material comprises Ln2 (CexZr < 1-x >) 2O7 and Zr < 1-y > LnyO < 2-delta >, wherein x is more than or equal to 0 and less than or equal to 1, y is more than or equal to 0.02 and less than or equal to 0.1, delta is y/2, and the molar ratio of Ln2 (CexZr1-x) 2O7 to Zr1-yLnyO2-delta is (0.8-1.2): 1. Zirconium oxide and a zirconate-based ceramic material system are subjected to rare earth doping modification to form two rare earth ceramic materials of Ln2 (CexZr1-x) 2O7 and Zr1-yLnyO2-delta, then the two materials are compounded according to the molar ratio close to eutectic components, and a novel thermal barrier coating material system with high-temperature sintering resistance, low thermal conductivity and a toughening effect is formed. And the comprehensive service performance of the thermal barrier coating is improved.
本发明属于热障涂层技术领域，提供了一种复合陶瓷材料及其制备方法和应用。复合陶瓷材料包含Ln2(CexZr1‑x)2O7和Zr1‑yLnyO2‑δ；其中，0≤x≤1，0.02≤y≤0.1，δ＝y/2，Ln2(CexZr1‑x)2O7和Zr1‑yLnyO2‑δ的摩尔比为0.8～1.2：1。本发明对氧化锆和锆酸盐基陶瓷材料体系进行稀土掺杂改性，形成Ln2(CexZr1‑x)2O7和Zr1‑yLnyO2‑δ两种稀土陶瓷材料，然后将两种材料以共晶成分附近的摩尔比进行复合，形成了兼顾抗高温烧结、低热导率和增韧效应的新型热障涂层材料体系，实现了热障涂层综合服役性能的提升。
Composite ceramic material as well as preparation method and application thereof
一种复合陶瓷材料及其制备方法和应用
WANG ZHIGANG (author) / SONG XIWEN (author) / XIE MIN (author) / ZHANG YONGHE (author) / WANG XUANLI (author)
2024-05-10
Patent
Electronic Resource
Chinese
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