Navegação Engenharias por Autor "Cardoso, Henrique Ribeiro Piaggio"
Resultados 1-10 de 10
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Characterization of siloxane-poly(methyl methacrylate) hybrid films obtained on a tinplate substrate modified by the addition of organic and inorganic acids
Kunst, Sandra Raquel; Beltrami, Lílian Vanessa Rossa; Cardoso, Henrique Ribeiro Piaggio; Santana, Joseane de Andrade; Sarmento, Victor Hugo Vitorino; Muller, Iduvirges Lourdes; Malfatti, Célia de Fraga (2016) [Artigo de periódico]Tinplate is used to food packaging and other types of packages. The corrosion resistance of the tinplate has been study due the necessity of an alternative to high environmental impact of chromatization process. Therefore ... -
Corrosion and wear resistance of carbon films obtained by electrodeposition on ferritic stainless steel
Cardoso, Henrique Ribeiro Piaggio; Falcade, Tiago; Kunst, Sandra Raquel; Malfatti, Célia de Fraga (2015) [Artigo de periódico]In improving the corrosion and hardness proprieties of ferritic stainless steel, the use of protective coatings becomes an interesting alternative. In this study, a carbon layer was deposited on AISI 430 by electrodeposition ... -
Deposição eletroassistida de ortossilicato de tetraetila (TEOS) como pré-tratamento para a pintura de alumínio AA1100
Moreira, Vitor Bonamigo; Cardoso, Henrique Ribeiro Piaggio; Ferreira, Jane Zoppas; Meneguzzi, Alvaro (2018) [Artigo de periódico]A técnica convencional de produção de filmes de organossilanos por imersão pode promover a formação de pré-tratamentos pouco homogêneos, prejudicando a sua proteção por barreira contra a corrosão e a aderência de tintas. ... -
Effect of concentrations of plasticizers on the sol-gel properties developed from alkoxides precursors
Kunst, Sandra Raquel; Longhi, Marielen; Beltrami, Lílian Vanessa Rossa; Zini, Lucas Pandolphi; Boniatti, Rosiana; Cardoso, Henrique Ribeiro Piaggio; Ortega Vega, Maria Rita; Malfatti, Célia de Fraga (2017) [Artigo de periódico]Coatings developed through sol-gel method is presented as an interesting replacement to chromium coating. Sol-gel method present advantages as high purity and excellent distribution of the components. The objective of this ... -
Effect of curing temperature and architectural (monolayer and bilayer) of hybrid films modified with polyethylene glycol for the corrosion protection on tinplate
Kunst, Sandra Raquel; Beltrami, Lílian Vanessa Rossa; Brandolt, Cristiane de Souza; Cardoso, Henrique Ribeiro Piaggio; Ortega Vega, Maria Rita; Baldin, Estela Knopp Kerstner; Menezes, Tiago Lemos; Malfatti, Célia de Fraga (2014) [Artigo de periódico]Hybrid films obtained by a sol-gel process are based on two important reactions: hydrolysis and condensation. The condensation reaction is influenced by the curing temperature, since it induces the development of the ... -
Electrochemical and mechanical behavior of aluminum aa2024-t3 coated with hybrid matrix containing graphene oxide
Cardoso, Henrique Ribeiro Piaggio; Beltrami, Lílian Vanessa Rossa; Marcolin, Patrícia; Scopel, Tatiane Longhi; Kunst, Sandra Raquel; Lemos, Lucas Madalosso de; Maraschin, Thuany; Basso, Nara Regina de Souza; Malfatti, Célia de Fraga (2019) [Artigo de periódico]The aeronautics industry uses aluminum alloy AA2024-T3 due to its low density and good mechanical properties. However, this alloy requires the use of protective coatings because it does not have the corrosion and wear ... -
Hybrid films with (trimethoxysilylpropyl) methacrylate (TMSM), poly (Methyl methacrylate) PMMA and tetraethoxysilane (TEOS) applied on tinplate
Kunst, Sandra Raquel; Ludwig, Gustavo Alberto; Cardoso, Henrique Ribeiro Piaggio; Santana, Joseane de Andrade; Sarmento, Victor Hugo Vitorino; Malfatti, Célia de Fraga (2014) [Artigo de periódico]The tetraethoxysilane (TEOS) influences morphological and electrochemical properties of hybrid films by function of concentration. Moreover, the use of acetic acid as a catalyst in the sol enables a more complete hydrolysis ... -
Influence of concentration and pH of hexafluorozirconic acid on corrosion resistance of anodized AA7075-T6
Pinheiro, Jéssica Salles; Regio, Gabriel; Cardoso, Henrique Ribeiro Piaggio; Oliveira, Cláudia Trindade; Ferreira, Jane Zoppas (2019) [Artigo de periódico]7XXX aluminum alloys show high mechanical resistance and low weight, both required properties for aircraft industry. Anodizing is an electrolytical process typically used to improve the corrosion resistance of aluminum ... -
Mitigating the susceptibility to intergranular corrosion of alloy 625 by friction‑stir welding
Lemos, Guilherme Vieira Braga; Farina, Alexandre Bellegard; Cardoso, Henrique Ribeiro Piaggio; Bergmann, Luciano Andrei; Ferreira, Jane Zoppas; Santos, Jorge Fernandez dos; Voort, George Vander; Reguly, Afonso (2022) [Artigo de periódico]In this work, friction-stir welding (FSW) was employed to alloy 625 grade I (soft annealed) sheets. Therefore, solid-state based welding was undertaken with a tool rotational speed of 200 rpm and a welding speed of 1 mm/s. ... -
New sol-gel formulations to increase the barrier effect of a protective coating against the corrosion and wear of galvanized steel
Kunst, Sandra Raquel; Cardoso, Henrique Ribeiro Piaggio; Beltrami, Lílian Vanessa Rossa; Oliveira, Cláudia Trindade; Menezes, Tiago Lemos; Ferreira, Jane Zoppas; Malfatti, Célia de Fraga (2015) [Artigo de periódico]This study proposes a new pretreatment method that uses alkoxide precursors with a plasticizing agent; the purpose of this study is to improve the electrochemical and mechanical properties of a galvanized steel surface. ...