Recent Development in Advance Ceramic Materials and Understanding the Mechanisms of Thermal Barrier Coatings Degradation
Последние достижения в области передовых керамических материалов и понимание механизмов деградации теплозащитных покрытий
2023-07-14
SCID: 54.1/xz22ptxn
Discuss with AI
advanced ceramic materialshigh-temperature oxidationhot corrosionprotective coatingsthermal barrier coatings
Figures from the paper
Abstract (AI)
Abstract Metallic alloys' behavior at high temperatures, especially their response to corrosion and formation of protective surface layers, has long been a focus of scientific inquiry. Although certain alloy compositions require an initiation period before hot corrosion advances to the propagation stage, no combination of alloys can be considered impervious to hot corrosion indefinitely. The capacity of nickel-based materials to tolerate extreme circumstances such high temperatures, acidity, corrosion, and scratching is highly valued. However, they are unable to satisfy the strict demands of today's high-temperature applications. The durability of thermal barrier coatings (TBCs), which are prone to oxidation, rust, and degradation from sulphates and foreign object damage, has been the subject of recent study. For sophisticated ceramic materials exposed to high temperatures, hot rust degradation poses a considerable challenge. The main objective of this study is to investigate the effects of severe degradation on several advanced ceramic material types and their level of advancement. The purpose of the inquiry is to comprehend the deteriorating processes at the long term working condition, including the function of oxidation and liquid salts. Additionally, we investigate the effects of temperature, environment, and contact duration on the heated weathering behavior of earthenware. Finally, we discuss strategies for mitigating hot corrosion degradation in ceramics, such as protective coatings like new design of TBCs, doping, and composition optimization. This paper aims to offer a thorough understanding of the hot corrosion behavior of ceramics, which is crucial for developing durable materials suitable for high-temperature applications. Additionally, it explores the fabrication of protective coatings and addresses the challenges faced in this regard. The insights gained from this research can contribute to the advancement of resilient ceramic fabrics and the development of effective protective coatings.
Key Findings
1
Hot-corrosion degradation of advanced ceramics is governed by long-term exposure conditions, particularly oxidation, liquid salts, temperature, environment, and contact duration.
2
Nickel-based materials withstand high temperatures, acidity, corrosion, and abrasion but cannot meet the increasingly stringent demands of modern high-temperature applications.
3
Protective strategies include redesigned thermal barrier coatings, dopant incorporation, and composition optimization to mitigate ceramic hot corrosion.
4
Thermal barrier coatings degrade through oxidation, corrosion, sulfate attack, and foreign-object damage, limiting their long-term durability.
5
Understanding ceramic hot-corrosion mechanisms and improving protective-coating fabrication are presented as essential for developing durable materials for high-temperature applications.
Research Object
advanced ceramic materials and thermal barrier coatings exposed to high-temperature hot-corrosion environments
Research Subject
degradation mechanisms and hot-corrosion behavior, including the effects of oxidation, liquid salts, temperature, environment, and exposure duration
Publication Details
Publication Date
2023-07-14
Journal
Publisher
ISSN
Cited by
81
Open access PDF
Access Type
Author Information
Download PDF
Subscribe to digest