DEMAT - Departamento de Engenharia de Materiais
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Article A Facile Microwave-Assisted Hydrothermal (MAH) method of CdWO4/CdMoO4 heterostructures and their photocatalytic properties(Ceramics-Switzerland, 2025-05-08) Motta, Fabiana Villela da; Andrade Neto, Nivaldo Freire de; Ramalho, Onécima Biatriz de Medeiros; Teodoro, Márcio Daldin; Delmonte, Maurício Roberto Bomio; https://orcid.org/0000-0002-3523-737X; https://orcid.org/0000-0001-9016-4217; https://orcid.org/0000-0003-1421-2904; https://orcid.org/0000-0002-7090-6938; https://orcid.org/0000-0002-3557-5555Article Development and application of a novel CaTiO3/NiO/AgBr ternary heterostructure for the treatment of highly concentrated dyes and its performance as an antimicrobial agent(Ceramics International, 2025-10) Delmonte, Maurício Roberto Bomio; Rosário, Lucas Oliveira do; Silva, Ubiratan Correia; Tranquilin, Ricardo Luis; Teodoro, Márcio Daldin; Melo, Maria Celeste Nunes de; Motta, Fabiana Villela da; https://orcid.org/0000-0002-3523-737X; https://orcid.org/0000-0001-9016-4217; https://orcid.org/0009-0007-2276-4342; https://orcid.org/0000-0002-4520-6948; https://orcid.org/0000-0002-9556-337X; https://orcid.org/0000-0002-9826-4981; https://orcid.org/0000-0002-3557-5555Article One-pot strategies for lithium recovery from beta-spodumene and LTA-type zeolite synthesis(Crystals, 2025-02-08) Nascimento, Rubens Maribondo do; Santos, Leonardo Leandro dos; Pergher, Sibele Berenice Castellã; https://orcid.org/0000-0001-9094-0044; https://orcid.org/0000-0002-5825-958X; https://orcid.org/0000-0002-9475-6516Article Revelling the structural, eletric, and high-frequency dieletric properties of residue doped-CaWO4 flexible multilayer ceramic sheets(Materials Research, 2025-03-21) Acchar, Wilson; Siqueira, Nívia Luciana Costa de; Correa, Marcio Assolin; Chiberio, Paulo Henrique; Alves, Hugo P. A.; Bohn, Felipe; https://orcid.org/0000-0002-5585-1799; https://orcid.org/0000-0002-0544-8280; https://orcid.org/0000-0003-3408-943X; https://orcid.org/0000-0002-5831-5393; https://orcid.org/0000-0002-0544-8280; https://orcid.org/0000-0002-8904-4151; https://orcid.org/0000-0002-5907-4106Article Filmes produzidos com compostos de tungstênio para aplicações elétricas e optoeletrônicas: uma revisão(Revista Principia, 2025-02-17) Acchar, Wilson; Siqueira, Nívia Luciana Costa de; Chibério, Paulo Henrique; Dantas Neto, João de Medeiros Dantas; Silva, Vamberto Monteiro da; https://orcid.org/0000-0002-0544-8280; https://orcid.org/0000-0002-5831-5393; https://orcid.org/0000-0002-3882-1571; https://orcid.org/0000-0002-2291-8555; https://orcid.org/0000-0002-5585-1799Tungsten-based materials have garnered increasing interest in recent years due to their unique properties and potential for various applications. This work conducted a Systematic Literature Review (SLR) on films produced with tungsten compounds as the base material. The deposition methods used in film fabrication, the electrical, dielectric, and optoelectronic properties studied in the reviewed works, the main investigated and/or suggested applications, and the film composition, among other aspects, were analyzed. Searches were performed on the research platforms Periódicos CAPES, Science Direct, Scopus, and Google Scholar. The criteria for analysis, selection, and exclusion of papers were defined according to the PICO strategy – Population, Intervention, Comparison, and Outcomes. In the first search stage, 187 articles were found, of which 36 were selected for full reading after applying the criteria. Sputtering was the most used production method, followed by Chemical Vapor Deposition (CVD), Sol-Gel, and Tape Casting. The main properties studied in the works were electrical resistivity and the I–V curve. Regarding composition, tungsten trioxide was the compound most used in film fabrication. The most indicated application was in electrochromic devices, such as films for smart windows, displays, and other optoelectronic applications. Other suggested applications included supercapacitors, solar cells, sensors, energy storage, and photodetectors. Based on the analyzed articles, it is possible to assert that tungsten films possess interesting properties for different applications, making them versatile materials with strong potential for further investigationsArticle Advancing the solidification of Sn–Bi alloys for electronic packaging: challenges, progress, and future directions(MetalMat, 2025-08-18) Silva, Bismarck Luis; Xavier, Marcela Gautê Cavalcante; Spinelli, José Eduardo; https://orcid.org/0000-0001-7191-1942; https://orcid.org/0000-0003-0611-1038; https://orcid.org/0000-0001-5690-9377Article Increased corrosion resistance of steel substrates coated with epoxy resin/ZnO/Fe2O3 obtained from electric arc furnace dust recovery(Journal of Materials Research and Technology, 2025-05-19) Martinelli, Antônio Eduardo; Castro, Mário Andrean Macedo; Nicácio, Tanara Caroline Nunes; Santos, Antônio Carlos do Nascimento; Santos, José Eudes Lima; Loor-Urgilés, Luis David; Motta, Fabiana Villela da; Delmonte, Maurício Roberto Bomio; https://orcid.org/0000-0003-3885-9104; https://orcid.org/0000-0001-8971-8382; https://orcid.org/0000-0002-0647-0447; https://orcid.org/0009-0007-8976-3328; https://orcid.org/0000-0001-5473-3654; https://orcid.org/0000-0001-9016-4217; https://orcid.org/0000-0002-9015-2889; https://orcid.org/0000-0002-3523-737XArticle Hydrothermal synthesis of γ-Al2O3 nanofluids for enhanced oil recovery: characterization and coreflooding evaluation(ACS Omega, 2025-09-03) Rocha, Camila Louyse Oliveira da; Santos, Ana Leticia; Muguirrima, Paulino Vasco Mariano; Oliveira, Gregory Vinicius Bezerra de; Mendes, Aramando Monte; Rodrigues, Marcos Allyson Felipe; Martinelli, Antonio Eduardo; https://orcid.org/0000-0003-3885-9104; https://orcid.org/0000-0003-1531-4099; https://orcid.org/0000-0002-8223-8199; https://orcid.org/0000-0003-3885-9104; https://orcid.org/0000-0002-3442-9927; https://orcid.org/0000-0002-8936-5705Article Plaster for internal coatings of partition walls incorporating untreated phosphosypsum(Ambiente Construído, 2025-01-31) Martinelli, Antonio Eduardo; Oliveira, Jorge Ivan de; Nobrega, Ana Cecilia Vieira da; Freitas, Julio Cezar de Oliveira; https://orcid.org/0000-0003-3885-9104; https://orcid.org/0009-0000-4756-8371; https://orcid.org/0000-0003-1118-1911; https://orcid.org/0000-0003-1324-9705O subproduto industrial fosfogesso (PG) foi reaproveitado, sem prétratamento, em revestimentos de gesso (G) internos de paredes divisórias. As propriedades de hidratação de cinco formulações (100%G, 100%PG, 25%PG + 75%G, 50%PG + 50%G e 75%PG + 25%G, em massa) foram investigadas, incluindo o consumo de água para consistência normal, tempo de pega, resistência à compressão e flexão, resistência de união e absorção de água. Embora G e PG sejam quimicamente semelhantes, PG apresentou área superficial específica e volume total de poros maiores que G, exigindo mais água. A mistura PG/G 75/25 atende a todos os requisitos técnicos para ser aplicado como revestimento interno de paredes divisóriasArticle Aplicação da aprendizagem baseada em projetos em acessibilidade: um estudo de caso(Revista de Ensino de Engenharia, 2025-08-12) Silva, Bismarck Luiz; Souza, Gleidson Linhares; Vasconcelos, Gabriel dos Santos; https://orcid.org/0000-0001-7191-1942; https://orcid.org/0009-0008-6974-9630This proposal arose from the demand for reusing discarded materials at the Material and Assets Directorate (MAD) of the Federal University of Rio Grande do Norte(FURN) and from the need to introduce the theme of accessibility to the context of engineering education based on project-based learning (PBL) implemented in disciplines of the materials engineering course. The subject of accessibility was chosen by the students due to the difficulties in obtaining wheelchairs at the university and the motivation to create solutions for people with physical disabilities. In this sense, the objective of the project was to build a wheelchair from materials not used at the MAD/UFRN, such as hospital wheelchairs, plastic seats and metal profiles from school desks. The students received guidance in the context of PBL and carried out the following steps: i.understand the problem; ii.brainstorm to gather ideas; iii.distribute tasks and responsibilities among the components; iv.establish goals and a schedule; v.study concepts and phenomena associated with material degradation, technical design, costs, solid waste, selection and specification of materials; vi.present the partial project report; vii.disassemble and evaluate the parts of a wheelchair model; viii.reuse components through sanding and painting processes; ix. selection and attachment to the new type of seat; x.validation test of the new structure; xi.market research for wheelchairs similar to the initial unused model. The new wheelchair proposal was delivered and presented on schedule. The final cost for the reconstruction was approximately 4% of the value of a new wheelchair. The students developed skills and abilities such as problem solving, teamwork, leadership, empathy, communication, creativity, material selection, project management, costs, and solid waste. PBL proved to be an effective methodology in active engineering teaching. The initiative impacted the academic community of UFRN, especially in the context of the inclusion and accessibility secretariat (IAS), opening new possibilities for cooperation between the materials engineering course and other academic units