materials-logo

Journal Browser

Journal Browser

Coating Materials for High Temperature Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (20 June 2023) | Viewed by 1391

Special Issue Editor

School of Materials, Northwestern Polytechnical University, Xi’an, China
Interests: ceramics coating; C/C composite; polymer derived ceramics; high temperature oxidation; ablation; thermal barrier coating; environmental barrier coating

Special Issue Information

Dear Colleagues,

High-temperature protective coatings are widely applied in hot-end components of aviation, aerospace, weapons, etc. Since the 1950s, a wide variety of high-temperature protective coatings have been investigated, ranging from single-layer coatings to multi-layer gradient coatings, from alloy coatings to current ceramic coatings. Coating materials for high-temperature protection applications have also expanded considerably, from high-temperature metals to multi-component composites, and their properties can be further enhanced by the addition of reactive elements.

To improve performance, reliability, and service life, many high-temperature protective coatings have been developed. Taking the hot-end components of aero-engine turbines as an example, there are thermal barrier coatings on turbine blades, sealing coatings on the outer ring of the turbine, anti-oxidation, and corrosion-resistant coatings in inner-cavity blades, and wear-resistant coatings on blade tips.

This Special Issue aims to cover recent developments in the relationship between the microstructure, fabrication, and the thermal and mechanical properties of coating materials at elevated temperatures. Full papers, short communications, and reviews are all welcome.

Dr. Jia Sun
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

  • diffusion coatings
  • metallic coatings
  • ceramic coatings
  • thermal barrier coatings
  • environmental barrier coatings
  • high-entropy materials
  • high temperature oxidation
  • high temperature ablation
  • heat insulation materials
  • hear-resistant coatings

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

16 pages, 11239 KiB  
Article
A Study on Long-Term Oxidation and Thermal Shock Performance of Nanostructured YSZ/NiCrAlY TBC with a Less Dense Bond Coat
by Teodor-Adrian Badea, Mihaela-Raluca Condruz and Alexandru Paraschiv
Materials 2023, 16(15), 5294; https://doi.org/10.3390/ma16155294 - 27 Jul 2023
Cited by 1 | Viewed by 851
Abstract
This paper focused on studying the performance of a nanostructured thermal barrier coating (TBC) system deposited by APS, which had a bond coat with inter-lamellar porosities that resulted during the manufacturing process. The higher porosity level of the bond coat was studied as [...] Read more.
This paper focused on studying the performance of a nanostructured thermal barrier coating (TBC) system deposited by APS, which had a bond coat with inter-lamellar porosities that resulted during the manufacturing process. The higher porosity level of the bond coat was studied as a possible way to keep the thickness of the TGO under control, as it is distributed on a higher surface, thereby reducing the chance of top-coat (TC) spallation during long-term oxidation and high-temperature thermal shock. The TBC system consisted of nanostructured yttria partially stabilized zirconia (YSZ) as a top coat and a conventional NiCrAlY bond coat. Inter-lamellar porosities ensured the development of a TGO distributed on a higher surface without affecting the overall coating performance. Based on long-term isothermal oxidation tests performed at 1150 °C, the inter-lamellar pores do not affect the high resistance of nanostructured TBCs in case of long-term iso-thermal oxidation at 1150 °C. The ceramic layer withstands the high-temperature exposure for 800 h of maintaining without showing major exfoliation. Fine cracks were discovered in the ceramic coating after 400 h of isothermal oxidation, and larger cracks were found after 800 h of exposure. An increase in both ceramic and bond-coat compaction was observed after prolonged high-temperature exposure, and this was sustained by the higher adhesion strength. Moreover, in extreme conditions, under high-temperature thermal shock cycles, the TBC withstands for 1242 cycles at 1200 °C and 555 cycles at 1250 °C. Full article
(This article belongs to the Special Issue Coating Materials for High Temperature Applications)
Show Figures

Figure 1

Back to TopTop