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Mechanical and Thermal Characterization of Novel Thermal Barrier Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Thin Films and Interfaces".

Deadline for manuscript submissions: 20 October 2025 | Viewed by 779

Special Issue Editor


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Guest Editor
School of Materials Science and Engineering, Kumoh National Institute of Technology (KIT), 61 Daehak-ro (yangho-dong), Gumi, Gyeongbuk 39177, Republic of Korea
Interests: materials

Special Issue Information

Dear Colleagues,

The scope of this Special Issue, titled “Mechanical and Thermal Characterization of Novel Thermal Barrier Materials”, includes research on the latest developments in thermal barrier coatings and their applications, in both academia and industry, and it offers a comprehensive understanding of the mechanisms behind the effective protection during operation.

This Special Issue focuses on TBC materials studies for optimizing their properties, the development of their fabrication process, their characterizations, and their evaluation techniques.

We highly encourage the submission of original research, engineering articles, communications, and critical reviews in the area of thermal barrier coatings and their applications from both academia and industry, covering topics including, but not limited to, the following:

  • Novel thermal barrier materials;
  • Novel fabrication technologies of TBC;
  • Chracterization of thermal and/or mechanical properties;
  • Novel evaluation techniques for protection.

Dr. Dowon Song
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • thermal barrier coatings
  • TBC materials
  • TBC evaluation
  • structure optimization
  • fabrication process
  • thermal durability

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Published Papers (1 paper)

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Research

14 pages, 5131 KiB  
Article
Mechanisms of Enhanced Thermal Durability in Porosity-Controlled Multilayer Thermal Barrier Coatings
by Janghyeok Pyeon, Kyung-Moo Kang, Bong-Gu Kim, Jeonghyeon Lee, Sohee Baek, Seungcheol Yang, Yeon-Gil Jung, Dowon Song and Byungil Yang
Materials 2025, 18(5), 917; https://doi.org/10.3390/ma18050917 - 20 Feb 2025
Viewed by 518
Abstract
This study investigates the enhancement of thermal durability in multilayer yttria-stabilized zirconia (YSZ) thermal barrier coatings (TBC) with porosity-controlled structures. Conventional single-layer YSZ and multilayer TBCs with dense and porous layers were fabricated by air plasma spraying and the TBC specimens were subjected [...] Read more.
This study investigates the enhancement of thermal durability in multilayer yttria-stabilized zirconia (YSZ) thermal barrier coatings (TBC) with porosity-controlled structures. Conventional single-layer YSZ and multilayer TBCs with dense and porous layers were fabricated by air plasma spraying and the TBC specimens were subjected to furnace cyclic testing. The single-layer TBC suffered from catastrophic delamination under cyclic thermal loading, driven by the mismatch in thermal expansion, while the multilayer TBCs exhibited a significant increase in thermal durability, by up to 50%. The relevant delamination mechanism was suggested with microstructural analysis, showing that the multilayer structure effectively relieved residual stresses by forming horizontal cracks, thereby mitigating crack propagation. This study emphasizes that the multilayer design in TBC with controlled porosity significantly enhances thermal durability, improving the operational lifespan of gas turbine hot components. Full article
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