{
  "abstract": "A C T Cr 2 AlC MAX phase coatings are known to form a protective alumina scale upon high temperature oxidation. Scale formation causes Al depletion, which results in the formation of Cr-carbides and pores that, in turn, cause coating failure. Here, we show that the oxidation-driven Al depletion of the coating is prevented by Alreplenishment using an Al-reservoir (Al-containing substrate), thereby extending the coating lifetime. Cr 2 AlC substrates with coarse and fine grain distributions were produced by spark plasma sintering and coated with Cr 2 AlC by magnetron sputtering. Upon oxidation at 1100 • C the Cr 2 AlC coatings, deposited onto a coarse-grained reservoir and onto MgO without an Al-reservoir, showed no significant change in Al content of the coating postoxidation, and hence no evidence for Al-replenishment from the substrate. However, in the case of a Cr 2 AlC coating deposited onto a fine-grained substrate, the Al content of the coating post-oxidation remained close to the initial concentration (~23 at.%). This replenishment is rationalized by the presence of more grain boundaries in the fine-grained substrate, versus the coarse-grained one, enabling sufficient Al diffusion across the substrate/ coating interface to offset the Al losses to the scale.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 6,
  "authors": [
    {
      "name": "Clio Azina"
    },
    {
      "name": "Devi Janani Ramesh"
    },
    {
      "name": "Marcus Hans"
    },
    {
      "name": "Per Eklund"
    },
    {
      "name": "Jesus Gonzalez-Julian"
    },
    {
      "name": "Jochen M Schneider"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c1tzt4qv51r0w.bib",
  "cited_by": 1,
  "doi": "10.1016/j.matdes.2026.116316",
  "fulltext_url": null,
  "id": "c1tzt4qv51r0w",
  "issns": [
    "0261-3069",
    "0264-1275"
  ],
  "landing_url": "https://hal.science/hal-05796808v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.chim"
    ],
    [
      "hal",
      "1.chim.mate"
    ],
    [
      "openalex",
      "2505|MXene and MAX Phase Materials"
    ]
  ],
  "openalex": "W7162659584",
  "pdf_url": "https://hal.science/hal-05796808/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-05-28",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/c1tzt4qv51r0w.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:55Z",
      "native_id": "hal-05796808",
      "source": "hal",
      "url": "https://hal.science/hal-05796808v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "hal:1.chim.mate",
      "subfield": "materials-polymers"
    }
  ],
  "title": "Replenishing the oxidation-induced Al-depletion in Cr2AlC MAX phase coatings",
  "title_text": "Replenishing the oxidation-induced Al-depletion in Cr2AlC MAX phase coatings",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:17:55Z",
  "url": "https://research.draconitic.com/paper/c1tzt4qv51r0w",
  "venue": "Materials & Design",
  "versions": []
}