Asset Details
Do you wish to reserve the book?
High Throughput Screening of CMAS Corrosion‐Resistant RETaO4 Based on Lamination Method
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
High Throughput Screening of CMAS Corrosion‐Resistant RETaO4 Based on Lamination Method
Do you wish to request the book?
High Throughput Screening of CMAS Corrosion‐Resistant RETaO4 Based on Lamination Method
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
High Throughput Screening of CMAS Corrosion‐Resistant RETaO4 Based on Lamination Method
2025
Overview
Rare earth tantalates (RETaO4), known for their exceptional thermomechanical properties, are promising candidates for next‐generation thermal barrier coatings (TBCs). However, the role of rare earth (RE) species in the CMAS (calcium‐magnesium‐aluminosilicate) corrosion behavior and mechanisms of RETaO4 remains unclear, hindering their design and application as TBCs. This study employs a high‐throughput approach to systematically investigate the CMAS corrosion mechanisms of RETaO4 (RE = Nd, Sm, Eu, Gd, Dy, Ho, Y, and Er) at 1300 °C. Precise analysis of the microstructure and composition reveal that the primary corrosion products are (Ca2‐xREx)(Ta2‐y‐zMgyAlz)O7 solid solutions, along with minor amounts of Ca2RE8(SiO4)6O2 apatite. These corrosion products are observed both in the recession layer and at grain boundaries. The CMAS infiltration depth of RETaO4 increases with the RE ionic radius. First‐principles calculations indicate that the formation enthalpy of corrosion products becomes more exothermic as the RE ionic radius increases, promoting the formation of corrosion products. Additionally, the wetting behavior of liquid CMAS on RETaO4 at high temperatures supports that RETaO4 with smaller RE ionic radius present better corrosion resistance. These findings provide insights into the influence of RE species on the CMAS corrosion behavior of RETaO4, offering guidelines for the rapid screening of CMAS‐resistant TBC materials.
This work employs a high‐throughput approach to investigate the CMAS corrosion behavior of RETaO4 at 1300 °C. Corrosion products are found in both the recession layer and at grain boundaries. The CMAS infiltration depth shows a positive correlation with the RE ionic radius, attributed to their influence on the formation enthalpy of the corrosion products.
Publisher
John Wiley & Sons, Inc,John Wiley and Sons Inc,Wiley
Subject
