THERMAL BARRIER COATING MATERIAL HAVING HIGH FRACTURE TOUGHNESS, CMAS CORROSION RESISTANCE AND ULTRA-HIGH-TEMPERATURE SINTERING RESISTANCE AND PREPARATION AND APPLICATION THEREOF, AND THERMAL BARRIER COATING

Title:

Document Type and Number:

WIPO Patent Application WO/2024/093144

Kind Code:

A1

Abstract:

The present invention relates to the technical field of high-temperature/ultra-high-temperature thermal barrier coatings, and provides a thermal barrier coating material having high fracture toughness, CMAS corrosion resistance and ultra-high-temperature sintering resistance and a preparation method therefor and an application thereof. According to the present invention, different rare earth oxides are co-doped with ZrO2, the crystal defect concentration and the lattice distortion degree are regulated and controlled by means of the doping amount of the rare earth oxides, and a completely stabilized cubic fluorite crystal structure is presented, so that no phase change occurs at room temperature to 1,600°C; and the present invention has the advantages of high toughness, CMAS corrosion resistance, ultra-high-temperature sintering resistance and a long service life.

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Inventors:

ZHANG XIANCHENG (CN)
CHEN XIAOLONG (CN)
TIAN HAOLIANG (CN)
SHI JUNMIAO (CN)
SUN BINHAN (CN)
TU SHANTUNG (CN)

Application Number:

PCT/CN2023/087429

Publication Date:

May 10, 2024

Filing Date:

April 11, 2023

Export Citation:

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Assignee:

UNIV EAST CHINA SCIENCE & TECH (CN)
UNIV JINAN (CN)
AECC BEIJING INST AERONAUTICAL MAT (CN)

International Classes:

C04B35/48; C04B35/50; C04B35/622; C04B35/626; C23C4/11; C23C4/134

Foreign References:

CN115536386A	2022-12-30
CN114672756A	2022-06-28
CN101012123A	2007-08-08
CN110272278A	2019-09-24
US20040043244A1	2004-03-04
US20110143043A1	2011-06-16
CN111836793A	2020-10-27
CN113045309A	2021-06-29

Attorney, Agent or Firm:

BEIJING FINELAND IP FIRM (CN)

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