{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,22]],"date-time":"2026-04-22T17:22:15Z","timestamp":1776878535673,"version":"3.51.2"},"reference-count":49,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2019,11,12]],"date-time":"2019-11-12T00:00:00Z","timestamp":1573516800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["SFRH\/BD\/111515\/2015"],"award-info":[{"award-number":["SFRH\/BD\/111515\/2015"]}],"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":["UID\/EMS\/00481\/2019-FCT"],"award-info":[{"award-number":["UID\/EMS\/00481\/2019-FCT"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"name":"PORTUGAL 2020","award":["CENTRO-01-0145-FEDER-022083"],"award-info":[{"award-number":["CENTRO-01-0145-FEDER-022083"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Metals"],"abstract":"<jats:p>Hybrid structures with epoxy embedded in open-cell aluminum foam were developed by combining open-cell aluminum foam specimens with unreinforced and reinforced epoxy resin using graphene oxide. These new hybrid structures were fabricated by infiltrating an open-cell aluminum foam specimen with pure epoxy or mixtures of epoxy and graphene oxide, completely filling the pores. The effects of graphene oxide on the mechanical, thermal, and acoustic performance of epoxy\/graphene oxide-based nanocomposites are reported. Mechanical compression analysis was conducted through quasi-static uniaxial compression tests at two loading rates (0.1 mm\/s and 1 mm\/s). Results show that the thermal stability and the sound absorption coefficient of the hybrid structures were improved by the incorporation of the graphene oxide within the epoxy matrix. However, the incorporation of the graphene oxide into the epoxy matrix can create voids inside the epoxy resin, leading to a decrease of the compressive strength of the hybrid structures, thus no significant increase in the energy absorption capability was observed.<\/jats:p>","DOI":"10.3390\/met9111214","type":"journal-article","created":{"date-parts":[[2019,11,13]],"date-time":"2019-11-13T09:11:27Z","timestamp":1573636287000},"page":"1214","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Mechanical, Thermal, and Acoustic Properties of Aluminum Foams Impregnated with Epoxy\/Graphene Oxide Nanocomposites"],"prefix":"10.3390","volume":"9","author":[{"given":"Susana C.","family":"Pinto","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering, TEMA, University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7498-452X","authenticated-orcid":false,"given":"Paula A.A.P.","family":"Marques","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, TEMA, University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3494-2584","authenticated-orcid":false,"given":"Matej","family":"Vesenjak","sequence":"additional","affiliation":[{"name":"Faculty of Mechanical Engineering, University of Maribor, 2000 Maribor, Slovenia"}]},{"given":"Romeu","family":"Vicente","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering, University of Aveiro, 3810-193 Aveiro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2989-375X","authenticated-orcid":false,"given":"Lu\u00eds","family":"Godinho","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering, ISISE, University of Coimbra, 3030-788 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0823-9783","authenticated-orcid":false,"given":"Lovre","family":"Krstulovi\u0107-Opara","sequence":"additional","affiliation":[{"name":"Faculty of Electrical Eng., Mech. Eng. and Naval Architecture, University of Split, 21000 Split, Croatia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8653-5126","authenticated-orcid":false,"given":"Isabel","family":"Duarte","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, TEMA, University of Aveiro, 3810-193 Aveiro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2019,11,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"559","DOI":"10.1016\/S0079-6425(00)00002-5","article-title":"Manufacture, characterisation and application of cellular metals and metal foams","volume":"46","author":"Banhart","year":"2001","journal-title":"Prog. Mater. Sci."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"775","DOI":"10.1002\/adem.200800241","article-title":"Porous metals and metallic foams: Current status and recent developments","volume":"10","author":"Lefebvre","year":"2008","journal-title":"Adv. Eng. 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