CMAS corrosion resistance and mechanism of directionally solidified Al2O3/YAG eutectic ceramics at high temperatures of 1300–1500 ℃

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-02-17 DOI:10.1016/j.corsci.2025.112793

Xue Tan, Haijun Su, Yuan Liu, Jiatong Yao, Hongliang Gao, Hao Jiang, Minghui Yu, Xiang Li, Peixin Yang, Zhuo Zhang, Min Guo

引用次数: 0

Abstract

The calcium-magnesium-alumina-silicate (CMAS) corrosion resistance of directionally solidified Al₂O₃/Y₃Al₅O₁₂ (YAG) eutectic ceramics prepared by the Czochralski technique was investigated at 1300–1500 °C. No corrosion traces were observed after 100 h of corrosion at 1300 °C. Under 1400 °C and 1500 °C after 50 h, the corrosion depth was increased to 306 and 316 μm, but the corrosion rate did not significantly improve. The corrosion resistance was attributed to the inhibition of CMAS penetration by the stable phase interface, the modulation of CMAS corrosion activity by the diffusion of elements, and forming a continuous and dense garnet layer.

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来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.