{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T12:42:36Z","timestamp":1780317756937,"version":"3.54.1"},"reference-count":34,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2025,11,14]],"date-time":"2025-11-14T00:00:00Z","timestamp":1763078400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"iangxi Provincial Natural Science Foundation\u2014youth fund project","award":["20232BAB214014"],"award-info":[{"award-number":["20232BAB214014"]}]},{"name":"Key industrial technology research project of Jiangxi academy of sciences","award":["2023YSBG22021"],"award-info":[{"award-number":["2023YSBG22021"]}]},{"name":"basic research and talent development of provincial research institutes\u2014doctoral introduction program","award":["2022YYB08"],"award-info":[{"award-number":["2022YYB08"]}]},{"DOI":"10.13039\/501100004479","name":"Jiangxi Provincial Natural Science Foundation","doi-asserted-by":"crossref","award":["20242BAB20157"],"award-info":[{"award-number":["20242BAB20157"]}],"id":[{"id":"10.13039\/501100004479","id-type":"DOI","asserted-by":"crossref"}]},{"name":"International cooperation project of Jiangxi","award":["20232BBH80008"],"award-info":[{"award-number":["20232BBH80008"]}]},{"name":"Key Research and Development Program of Jiangxi Academy of Sciences","award":["2023YSBG10002"],"award-info":[{"award-number":["2023YSBG10002"]}]},{"name":"Jiangxi Province Early-Career Youth Talent Development Program","award":["20252BEJ730370"],"award-info":[{"award-number":["20252BEJ730370"]}]},{"DOI":"10.13039\/501100004479","name":"Jiangxi Provincial Natural Science Foundation","doi-asserted-by":"crossref","award":["20252BAC200660"],"award-info":[{"award-number":["20252BAC200660"]}],"id":[{"id":"10.13039\/501100004479","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The microstructures and oxidation behavior of the NbSiTiAlHf alloys doped with rare earth elements at 1300 \u00b0C were investigated. The nominal compositions of the selected alloys are Nb-13.5Si-23Ti-37Al-5Hf-0.5X (at.%), where X = Y, Dy, and La, respectively. It was shown that the whole scales were mainly composed of the major phases of Al2O3 and the minor phases of TiO2, where the TiO2 formed on the surface or in the upper layer of scales, for the undoped, Y, and Dy-doped alloy. But, for the 0.5 at.% La-doped alloys, the whole scales were constituted with the major phases of both Al2O3 and TiO2, and contained plenty of large voids. The 0.5 at.% Dy-doped alloys exhibited the lowest scale growth rate with the value of 1.87 \u00d7 10\u221211 cm2\/s, and the benefits of Y on the oxidation rates were short-term, while 0.5 at.% La-doped alloys had the highest scale growth rate of 4.55 \u00d7 10\u221210 cm2\/s compared with those of all the selected alloys. Then, the effects of Y, Dy, and La on the oxidation behavior of the alumina-scale-forming NbSiTiAlHf alloys were discussed.<\/jats:p>","DOI":"10.3390\/ma18225182","type":"journal-article","created":{"date-parts":[[2025,11,14]],"date-time":"2025-11-14T16:46:22Z","timestamp":1763138782000},"page":"5182","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Effects of Rare Earth Elements on the Isothermal Oxidation of the Alumina-Scale-Forming NbSiTiAlHf Alloys"],"prefix":"10.3390","volume":"18","author":[{"given":"Chang","family":"Jiang","sequence":"first","affiliation":[{"name":"Jiangxi Key Laboratory of Advanced Copper-Based Materials, Institute of Materials and Intelligent Manufacturing, Jiangxi Academy of Sciences, Nanchang 330096, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hui","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Physics and Materials Science, Nanchang University, Nanchang 330031, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0007-2429","authenticated-orcid":false,"given":"Dan","family":"Wu","sequence":"additional","affiliation":[{"name":"Jiangxi Key Laboratory of Advanced Copper-Based Materials, Institute of Materials and Intelligent Manufacturing, Jiangxi Academy of Sciences, Nanchang 330096, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Song","family":"Zeng","sequence":"additional","affiliation":[{"name":"Jiangxi Key Laboratory of Advanced Copper-Based Materials, Institute of Materials and Intelligent Manufacturing, Jiangxi Academy of Sciences, Nanchang 330096, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Youxing","family":"He","sequence":"additional","affiliation":[{"name":"Jiangxi Key Laboratory of Advanced Copper-Based Materials, Institute of Materials and Intelligent Manufacturing, Jiangxi Academy of Sciences, Nanchang 330096, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuebing","family":"Yang","sequence":"additional","affiliation":[{"name":"Jiangxi Key Laboratory of Advanced Copper-Based Materials, Institute of Materials and Intelligent Manufacturing, Jiangxi Academy of Sciences, Nanchang 330096, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Linwei","family":"Zhang","sequence":"additional","affiliation":[{"name":"Jiangxi Key Laboratory of Advanced Copper-Based Materials, Institute of Materials and Intelligent Manufacturing, Jiangxi Academy of Sciences, Nanchang 330096, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiuming","family":"Yu","sequence":"additional","affiliation":[{"name":"Jiangxi Key Laboratory of Advanced Copper-Based Materials, Institute of Materials and Intelligent Manufacturing, Jiangxi Academy of Sciences, Nanchang 330096, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lei","family":"Lu","sequence":"additional","affiliation":[{"name":"Jiangxi Key Laboratory of Advanced Copper-Based Materials, Institute of Materials and Intelligent Manufacturing, Jiangxi Academy of Sciences, Nanchang 330096, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenfu","family":"Chen","sequence":"additional","affiliation":[{"name":"Jiangxi Key Laboratory of Advanced Copper-Based Materials, Institute of Materials and Intelligent Manufacturing, Jiangxi Academy of Sciences, Nanchang 330096, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,11,14]]},"reference":[{"key":"ref_1","first-page":"14","article-title":"New Generation Thermal Barrier Coatings for Ultrahigh Temperature Applications","volume":"32","author":"Zheng","year":"2012","journal-title":"J. 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