{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T15:45:07Z","timestamp":1772811907621,"version":"3.50.1"},"reference-count":59,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2021,9,24]],"date-time":"2021-09-24T00:00:00Z","timestamp":1632441600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"COMPETE 2020","award":["Project POCI-01-0247-FEDER-042785"],"award-info":[{"award-number":["Project POCI-01-0247-FEDER-042785"]}]},{"DOI":"10.13039\/501100004895","name":"European Social Fund","doi-asserted-by":"publisher","award":["NORTE-08-5369-FSE-000047"],"award-info":[{"award-number":["NORTE-08-5369-FSE-000047"]}],"id":[{"id":"10.13039\/501100004895","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/00285\/2020"],"award-info":[{"award-number":["UIDB\/00285\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/04650\/2020"],"award-info":[{"award-number":["UIDB\/04650\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The present work aims to study the impact of O and N addition on Cr-sputtered coatings on plastic (polycarbonate, PC) used in automobile parts, as a promisor alternative for auto part metallization, while eliminating the usage of toxic hexavalent chromium. The coatings were deposited using DC magnetron sputtering from a single pure Cr target in a reactive atmosphere (N2 and\/or O2). The deposition of the coatings was performed maintaining the total pressure constant and close to 1 Pa by tuning Ar pressure while reactive gases were added. The target current density was kept at JW = 20 mA\u00b7cm\u22122. Structural characterization revealed a mixture of \u03b1-Cr, \u03b4-Cr, \u03b2-Cr2N, and CrN crystalline structures as well as amorphous oxides. The coating hardness ranged from 9 GPa for the CrON coating to 15 GPa for the CrN coating. All deposited coatings showed a particularly good interface adhesion; adjusting the amount of O and N made it possible to tune the optical properties of the Cr-based coatings as desired. The promising results open future industrialization of sputtered Cr-based coatings for automotive industries.<\/jats:p>","DOI":"10.3390\/ma14195527","type":"journal-article","created":{"date-parts":[[2021,9,24]],"date-time":"2021-09-24T20:15:32Z","timestamp":1632514532000},"page":"5527","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["Cr-Based Sputtered Decorative Coatings for Automotive Industry"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0058-0194","authenticated-orcid":false,"given":"Edgar","family":"Carneiro","sequence":"first","affiliation":[{"name":"CFUM-UP, Physics Department, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"given":"Nuno M. G.","family":"Parreira","sequence":"additional","affiliation":[{"name":"CFUM-UP, Physics Department, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3610-5862","authenticated-orcid":false,"given":"Todor","family":"Vuchkov","sequence":"additional","affiliation":[{"name":"CEMMPRE\u2014Centre for Mechanical, Department of Mechanical Engineering, Engineering Materials and Processes, University of Coimbra, Rua Lu\u00eds Reis Santos, 3030-788 Coimbra, Portugal"},{"name":"LED & MAT-IPN\u2014Laboratory for Wear, Testing and Materials, Instituto Pedro Nunes, Rua Pedro Nunes, 3030-199 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8251-5099","authenticated-orcid":false,"given":"Albano","family":"Cavaleiro","sequence":"additional","affiliation":[{"name":"CEMMPRE\u2014Centre for Mechanical, Department of Mechanical Engineering, Engineering Materials and Processes, University of Coimbra, Rua Lu\u00eds Reis Santos, 3030-788 Coimbra, Portugal"},{"name":"LED & MAT-IPN\u2014Laboratory for Wear, Testing and Materials, Instituto Pedro Nunes, Rua Pedro Nunes, 3030-199 Coimbra, Portugal"}]},{"given":"Jorge","family":"Ferreira","sequence":"additional","affiliation":[{"name":"Engineering Department, KLC\u2014Technical Plastics, 2430-021 Marinha Grande, Portugal"}]},{"given":"Martin","family":"Andritschky","sequence":"additional","affiliation":[{"name":"CFUM-UP, Physics Department, University of Minho, 4800-058 Guimar\u00e3es, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3643-4973","authenticated-orcid":false,"given":"Sandra","family":"Carvalho","sequence":"additional","affiliation":[{"name":"CEMMPRE\u2014Centre for Mechanical, Department of Mechanical Engineering, Engineering Materials and Processes, University of Coimbra, Rua Lu\u00eds Reis Santos, 3030-788 Coimbra, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2021,9,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"171","DOI":"10.1016\/j.radphyschem.2016.04.010","article-title":"Surface modification and metallization of polycarbonate using low energy ion beam","volume":"125","author":"Reheem","year":"2016","journal-title":"Radiat. 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