Eutectic ceramic thermal barrier material and preparation method thereof

US11686001B2 · kind B2 · utility

Assignee

• Northwestern Polytechnical University · CN

Inventors

• Haijun Su · Xi'an, CN
• Zhonglin Shen · Xi'an, CN
• Minghui Yu · Fremont, US
• Haifang Liu · Xi'an, CN
• Yinuo Guo · Xi'an, CN
• Dianyun Wang · Xi'an, CN
• Yuan Liu · 安丰镇, CN
• Di Zhao · Nanhu, CN
• Taiwen Huang · Xi'an, CN
• Wenchao Yang · Xi'an, CN

Key dates

• Filing date: May 19, 2022
• Grant date: Jun 27, 2023
• Expiry date: Aug 2, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C28/3455
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The disclosure provides a eutectic ceramic thermal barrier material and a preparation method thereof, which relates to the field of composite materials. The present disclosure provides a eutectic ceramic thermal barrier material comprising a nickel-based superalloy substrate, an intermediate binding layer and a eutectic ceramic cladding layer stacked sequentially; the intermediate binding layer comprises a NiCoCrAlY binding layer; the eutectic ceramic cladding layer comprises an Al2O3/GdAlO3 binary eutectic ceramic coating or an Al2O3/GdAlO3/ZrO2 ternary eutectic ceramic coating. The eutectic ceramic thermal barrier material provided by the present disclosure has good high temperature resistance, good oxidation resistance and excellent mechanical properties.