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High-toughness double-phase metal oxide ceramic powder, ceramic and preparation method of high-toughness double-phase metal oxide ceramic powder
The invention provides high-toughness biphase metal oxide ceramic powder, ceramic and a preparation method of the high-toughness biphase metal oxide ceramic powder. The chemical general formula of the high-toughness double-phase metal oxide ceramic powder is RexHf (1-x) O (2-0.5 x), wherein x is more than 0 and less than or equal to 0.2; re is a Gd element and/or a Y element. The high-toughness dual-phase metal oxide ceramic has a dual-phase sandwich structure. The high-toughness dual-phase metal oxide ceramic provided by the invention has a monoclinic phase and tetragonal phase dual-phase structure, and also has a C-M-C dual-phase sandwich structure similar to sandwich, so that the fracture toughness of hafnium oxide ceramic is improved, and the application requirements of the hafnium oxide ceramic in a hot end part and a rotating part of an aero-engine are met.
本发明提供一种高韧双相金属氧化物陶瓷粉末、陶瓷及其制备方法。所述高韧双相金属氧化物陶瓷粉末的化学通式为：RexHf1‑xO2‑0.5x，其中0＜x≤0.2；所述Re为Gd元素和/或Y元素。所述高韧双相金属氧化物陶瓷具有双相夹层结构。本发明提供的高韧双相金属氧化物陶瓷存在单斜相和四方相双相结构，且存在类似三明治的C‑M‑C双相夹层结构，提高了氧化铪陶瓷断裂韧性，满足氧化铪陶瓷在航空发动机的热端部件转动部件的应用需求。
High-toughness double-phase metal oxide ceramic powder, ceramic and preparation method of high-toughness double-phase metal oxide ceramic powder
The invention provides high-toughness biphase metal oxide ceramic powder, ceramic and a preparation method of the high-toughness biphase metal oxide ceramic powder. The chemical general formula of the high-toughness double-phase metal oxide ceramic powder is RexHf (1-x) O (2-0.5 x), wherein x is more than 0 and less than or equal to 0.2; re is a Gd element and/or a Y element. The high-toughness dual-phase metal oxide ceramic has a dual-phase sandwich structure. The high-toughness dual-phase metal oxide ceramic provided by the invention has a monoclinic phase and tetragonal phase dual-phase structure, and also has a C-M-C dual-phase sandwich structure similar to sandwich, so that the fracture toughness of hafnium oxide ceramic is improved, and the application requirements of the hafnium oxide ceramic in a hot end part and a rotating part of an aero-engine are met.
本发明提供一种高韧双相金属氧化物陶瓷粉末、陶瓷及其制备方法。所述高韧双相金属氧化物陶瓷粉末的化学通式为：RexHf1‑xO2‑0.5x，其中0＜x≤0.2；所述Re为Gd元素和/或Y元素。所述高韧双相金属氧化物陶瓷具有双相夹层结构。本发明提供的高韧双相金属氧化物陶瓷存在单斜相和四方相双相结构，且存在类似三明治的C‑M‑C双相夹层结构，提高了氧化铪陶瓷断裂韧性，满足氧化铪陶瓷在航空发动机的热端部件转动部件的应用需求。
High-toughness double-phase metal oxide ceramic powder, ceramic and preparation method of high-toughness double-phase metal oxide ceramic powder
一种高韧双相金属氧化物陶瓷粉末、陶瓷及其制备方法
LAN HAO (author) / SUN YONGHUI (author) / WU YANG (author) / HU ZIHAO (author) / ZHANG HUIFENG (author) / HUANG CHUANBING (author) / ZHANG WEIGANG (author)
2024-06-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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