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Thermal barrier ceramic material, preparation method thereof, thermal barrier coating and gas turbine
The invention relates to a thermal barrier ceramic material and a preparation method thereof, a thermal barrier coating and a gas turbine, the chemical composition of the thermal barrier ceramic material is AxCeyZr1-yO2 + 1.5 x, A is selected from one or more of Dy, Er, Yb and Lu, x is more than or equal to 0.04 and less than or equal to 0.08, and y is more than or equal to 0.05 and less than 0.2. The thermal barrier ceramic material is prepared by doping rare earth oxide with a cerium zirconate material, the thermal barrier ceramic material has a stable tetragonal phase and a partial cubic phase by regulating and controlling the variety and doping amount of rare earth elements, and the high expansion coefficient and low thermal conductivity of the material are ensured while the phase stability of the thermal barrier ceramic material is improved.
本申请涉及一种热障陶瓷材料及其制备方法、热障涂层、燃气轮机，热障陶瓷材料热障陶瓷材料的化学组成为AxCeyZr1‑yO2+1.5x，其中，A选自Dy、Er、Yb和Lu中的一种或多种，0.04≤x≤0.08，0.05≤y＜0.2。以稀土氧化物掺杂锆酸铈材料制成热障陶瓷材料，通过调控稀土元素的种类和掺入量，使热障陶瓷材料具有稳定的四方相和部分立方相，在改善热障陶瓷材料相稳定性的同时，保证材料具有高膨胀系数和低热导率。
Thermal barrier ceramic material, preparation method thereof, thermal barrier coating and gas turbine
The invention relates to a thermal barrier ceramic material and a preparation method thereof, a thermal barrier coating and a gas turbine, the chemical composition of the thermal barrier ceramic material is AxCeyZr1-yO2 + 1.5 x, A is selected from one or more of Dy, Er, Yb and Lu, x is more than or equal to 0.04 and less than or equal to 0.08, and y is more than or equal to 0.05 and less than 0.2. The thermal barrier ceramic material is prepared by doping rare earth oxide with a cerium zirconate material, the thermal barrier ceramic material has a stable tetragonal phase and a partial cubic phase by regulating and controlling the variety and doping amount of rare earth elements, and the high expansion coefficient and low thermal conductivity of the material are ensured while the phase stability of the thermal barrier ceramic material is improved.
本申请涉及一种热障陶瓷材料及其制备方法、热障涂层、燃气轮机，热障陶瓷材料热障陶瓷材料的化学组成为AxCeyZr1‑yO2+1.5x，其中，A选自Dy、Er、Yb和Lu中的一种或多种，0.04≤x≤0.08，0.05≤y＜0.2。以稀土氧化物掺杂锆酸铈材料制成热障陶瓷材料，通过调控稀土元素的种类和掺入量，使热障陶瓷材料具有稳定的四方相和部分立方相，在改善热障陶瓷材料相稳定性的同时，保证材料具有高膨胀系数和低热导率。
Thermal barrier ceramic material, preparation method thereof, thermal barrier coating and gas turbine
热障陶瓷材料及其制备方法、热障涂层、燃气轮机
WAN CHUNLEI (author) / SUN JIAN (author) / LIU XIANGYANG (author) / LIU GUANGHUA (author) / LIU WEI (author) / PAN WEI (author)
2024-03-26
Patent
Electronic Resource
Chinese
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