Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of double-phase high-entropy ceramic powder and coating
The invention provides a preparation method of double-phase high-entropy ceramic powder and a coating. The preparation method comprises the following steps: firstly, preparing micron-sized spherical double-phase high-entropy ceramic powder by a spray granulation method; the high-quality standard spherical biphase high-entropy ceramic powder with high density, high fluidity and high apparent density is prepared by adopting a radio frequency induction plasma spheroidizing mode, and the powder has a face-centered cubic crystal structure and a body-centered cubic crystal structure. And the two-phase high-entropy ceramic coating is prepared on the surface of a matrix by adopting a supersonic plasma spraying technology. The coating prepared by the invention has excellent phase stability and oxidation ablation resistance, and can bear ultrahigh-temperature thermal protection capability of 120 seconds or more in an arc plasma ablation process at 1800 DEG C.
本发明提供一种双相高熵陶瓷粉体和涂层的制备方法。该制备方法首先通过喷雾造粒法制备微米级的球形双相高熵陶瓷粉体；采用射频感应等离子球化的方式制备高致密度、高流动性、高松装密度的高品质标准球形双相高熵陶瓷粉体，该粉体具有面心立方晶体结构和体心立方晶体结构。采用超音速等离子喷涂技术在基体表面制备双相高熵陶瓷涂层。本发明制备的涂层兼具优异的相稳定性与抗氧化烧蚀性能，在1800℃的电弧等离子烧蚀过程中均能承受120秒以上的超高温热防护能力。
Preparation method of double-phase high-entropy ceramic powder and coating
The invention provides a preparation method of double-phase high-entropy ceramic powder and a coating. The preparation method comprises the following steps: firstly, preparing micron-sized spherical double-phase high-entropy ceramic powder by a spray granulation method; the high-quality standard spherical biphase high-entropy ceramic powder with high density, high fluidity and high apparent density is prepared by adopting a radio frequency induction plasma spheroidizing mode, and the powder has a face-centered cubic crystal structure and a body-centered cubic crystal structure. And the two-phase high-entropy ceramic coating is prepared on the surface of a matrix by adopting a supersonic plasma spraying technology. The coating prepared by the invention has excellent phase stability and oxidation ablation resistance, and can bear ultrahigh-temperature thermal protection capability of 120 seconds or more in an arc plasma ablation process at 1800 DEG C.
本发明提供一种双相高熵陶瓷粉体和涂层的制备方法。该制备方法首先通过喷雾造粒法制备微米级的球形双相高熵陶瓷粉体；采用射频感应等离子球化的方式制备高致密度、高流动性、高松装密度的高品质标准球形双相高熵陶瓷粉体，该粉体具有面心立方晶体结构和体心立方晶体结构。采用超音速等离子喷涂技术在基体表面制备双相高熵陶瓷涂层。本发明制备的涂层兼具优异的相稳定性与抗氧化烧蚀性能，在1800℃的电弧等离子烧蚀过程中均能承受120秒以上的超高温热防护能力。
Preparation method of double-phase high-entropy ceramic powder and coating
一种双相高熵陶瓷粉体和涂层的制备方法
LIANG XIUBING (Autor:in) / HE PENGFEI (Autor:in) / LI FENGTIAN (Autor:in) / SUN CHUAN (Autor:in) / XING YUE (Autor:in) / CHEN YONGXIONG (Autor:in) / HU ZHENFENG (Autor:in) / BU XIANGJUN (Autor:in)
23.08.2024
Patent
Elektronische Ressource
Chinesisch
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