{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T16:34:24Z","timestamp":1785429264375,"version":"3.56.0"},"reference-count":51,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2026,5,9]],"date-time":"2026-05-09T00:00:00Z","timestamp":1778284800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003593","name":"National Council for Scientific and Technological Development","doi-asserted-by":"crossref","award":["407125\/2022-1"],"award-info":[{"award-number":["407125\/2022-1"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"crossref"}]},{"award":["407125\/2022-1"],"award-info":[{"award-number":["407125\/2022-1"]}],"id":[{"id":"https:\/\/ror.org\/03swz6y49","id-type":"ROR","asserted-by":"publisher"}]},{"name":"S\u00e3o Paulo Research Foundation (FAPESP), Brazil","award":["2025\/15161-7"],"award-info":[{"award-number":["2025\/15161-7"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>This study investigates how processing parameters and powder characteristics influence the mechanical performance of thermal barrier coatings (TBCs) applied to a Ti-6Al-4V alloy. Two TBCs were deposited by Atmospheric Plasma Spray (APS) using different processing conditions, feedstock characteristics, and coating thicknesses (thin and thick configurations). TBC characterization included powder size analysis, scanning electron microscopy (SEM), surface roughness, X-ray diffraction, instrumented indentation, and scratch testing. Mechanical behavior was assessed using creep testing at 125 MPa and 500 \u00b0C for coated and uncoated samples. Fracture surfaces of crept samples were analyzed by SEM and stereomicroscopy. Thicker TBC exhibited higher elastic modulus but contained microcracks and higher porosity, resulting in a higher steady-state creep rate (0.0006 h\u22121, approximately 167% above the uncoated substrate) and reduced rupture time. Conversely, thinner TBC remained initially crack-free, promoting stress redistribution and leading to a lower creep rate (0.0002 h\u22121, about 67% below the substrate) and delayed failure. Fractographic analysis revealed ductile fracture of Ti-6Al-4V in all conditions, indicating that coatings influenced damage accumulation rather than fracture mode. These findings underscore the combined effect of processing parameters and coating architecture on TBC performance for aerospace applications.<\/jats:p>","DOI":"10.3390\/ma19101958","type":"journal-article","created":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T13:10:42Z","timestamp":1778505042000},"page":"1958","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Effect of Processing Parameters on the Creep Behavior and Integrity of Plasma-Sprayed Thermal Barrier Coatings on Ti-6Al-4V"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-5989-4022","authenticated-orcid":false,"given":"Bianca Costa","family":"Rodrigues","sequence":"first","affiliation":[{"name":"Laboratory of Mechanical Behavior of Metals (LCMM), Institute of Science and Technology, Federal University of S\u00e3o Paulo (UNIFESP), S\u00e3o Jos\u00e9 dos Campos 12231-280, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6262-014X","authenticated-orcid":false,"given":"Renata Jesuina","family":"Takahashi","sequence":"additional","affiliation":[{"name":"Laboratory of Mechanical Behavior of Metals (LCMM), Institute of Science and Technology, Federal University of S\u00e3o Paulo (UNIFESP), S\u00e3o Jos\u00e9 dos Campos 12231-280, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vera L\u00facia Oth\u00e9ro","family":"de Brito","sequence":"additional","affiliation":[{"name":"Institute for Advanced Studies (IEAv), Department of Science and Aerospace Technology, S\u00e3o Jos\u00e9 dos Campos 12228-001, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1871-6475","authenticated-orcid":false,"given":"Danieli Aparecida Pereira","family":"Reis","sequence":"additional","affiliation":[{"name":"Laboratory of Mechanical Behavior of Metals (LCMM), Institute of Science and Technology, Federal University of S\u00e3o Paulo (UNIFESP), S\u00e3o Jos\u00e9 dos Campos 12231-280, SP, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,5,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"117274","DOI":"10.1016\/j.jeurceramsoc.2025.117274","article-title":"A review on the performance and lifetime improvement of thermal barrier coatings","volume":"45","author":"Sezavar","year":"2025","journal-title":"J. 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