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Thermal barrier coating material with perovskite structure and preparation method thereof
The invention discloses a thermal barrier coating material with a perovskite structure and a preparation method thereof, the chemical composition of the thermal barrier coating material is (A1-xMx) (B1-yNy) O3, and the thermal barrier coating material belongs to an ABO3 perovskite type structure; 0 < = x < = 1; 0 < = y < = 1; m and N are added elements, M is located at the position A, and N is located at the position B; the valence state of the A-site element is + 1 valence, + 2 valence or + 3 valence, and the valence state of the B-site element is + 2 valence, + 3 valence, + 4 valence, + 5 valence or + 6 valence. The thermal barrier coating material disclosed by the invention has the advantages of low thermal expansion coefficient, low thermal conductivity and extremely high Vickers hardness and elastic modulus; and the coating can be applied to the surface of equipment working in a high-temperature environment, such as an aviation turbine engine and a turbine blade of a gas turbine.
本发明公开了一种具有钙钛矿结构的热障涂层材料及其制备方法，该热障涂层材料的化学组成为(A1‑xMx)(B1‑yNy)O3，属ABO3钙钛矿型结构；0≤x≤1；0≤y≤1；M和N是添加元素，M处于A位，N处于B位；A位元素的价态为+1价、+2价或+3价，B位的元素的价态为+2价、+3价、+4价、+5价或+6价。本发明热障涂层材料具有低热膨胀系数、低热导率，极高的维氏硬度和弹性模量；能应用在航空涡轮发动机和燃气轮机涡轮叶片等高温环境中工作的设备的表面。
Thermal barrier coating material with perovskite structure and preparation method thereof
The invention discloses a thermal barrier coating material with a perovskite structure and a preparation method thereof, the chemical composition of the thermal barrier coating material is (A1-xMx) (B1-yNy) O3, and the thermal barrier coating material belongs to an ABO3 perovskite type structure; 0 < = x < = 1; 0 < = y < = 1; m and N are added elements, M is located at the position A, and N is located at the position B; the valence state of the A-site element is + 1 valence, + 2 valence or + 3 valence, and the valence state of the B-site element is + 2 valence, + 3 valence, + 4 valence, + 5 valence or + 6 valence. The thermal barrier coating material disclosed by the invention has the advantages of low thermal expansion coefficient, low thermal conductivity and extremely high Vickers hardness and elastic modulus; and the coating can be applied to the surface of equipment working in a high-temperature environment, such as an aviation turbine engine and a turbine blade of a gas turbine.
本发明公开了一种具有钙钛矿结构的热障涂层材料及其制备方法，该热障涂层材料的化学组成为(A1‑xMx)(B1‑yNy)O3，属ABO3钙钛矿型结构；0≤x≤1；0≤y≤1；M和N是添加元素，M处于A位，N处于B位；A位元素的价态为+1价、+2价或+3价，B位的元素的价态为+2价、+3价、+4价、+5价或+6价。本发明热障涂层材料具有低热膨胀系数、低热导率，极高的维氏硬度和弹性模量；能应用在航空涡轮发动机和燃气轮机涡轮叶片等高温环境中工作的设备的表面。
Thermal barrier coating material with perovskite structure and preparation method thereof
一种具有钙钛矿结构的热障涂层材料及其制备方法
LOU XIAOJIE (author) / QIAO WENJING (author)
2023-08-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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