Nanoceramics
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Controlling sintering and grain growth of nanoceramics
Resumo Sinterização e crescimento de grão são processos fundamentais que afetam a evolução microestrutural das cerâmicas. Os modelos fenomenológicos que descrevem esses processos, conforme encontrados nos livros didáticos, são simplificações do conjunto altamente dinâmico de parâmetros do sistema, o que leva à previsibilidade limitada e à nec
Cerâmica. Publicado em: 2019-01
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2. Anticorrosive performance of commercial nanoceramic coatings on AISI 1010 steel
The aim of this work was to study the corrosion behavior of three commercial nanoceramic coatings in comparison to zinc phosphate coatings applied on mild steel (SAE 1010). The coatings were evaluated by scanning electron microscopy (SEM), profilometry and hydrophobicity. The electrochemical behavior was evaluated by dynamic polarization. The results showed
Mat. Res.. Publicado em: 2014-12
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3. A nanotecnologia aplicada à prevenção da corrosão : o uso de nanocerâmicos de alumina e zircônia
This work presents the study of a nanoceramic material, based on a matrix of Al2O3 with addition of ZrO2 15% in mol, as corrosion inhibitor in metallic substrates: steel carbon, steel galvanized minimized and aluminum. The characterization of the formed oxides was carried out by the study of Fourier´s Transformed Infrared Spectroscopy (FTIR) and Ray X diffr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/11/2008
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4. Synthesis and dielectric properties of the lase sintered Ba1-xCaxTiO3 (0 ≤ x ≤ 0.30) nanostructured ceramics / Síntese e propriedades dielétricas de cerâmicas nanoestruturadas de Ba1xCaxTiO3 (0 menor igual x menor igual 0.30) sinterizadas a laser
Ba1-xCaxTiO3 (0 ≤ x ≤ 0.30) nanocrystalline powders were successfully synthesized for the first time at relative low temperature (500 °C) by a modified polymeric precursor method. The densification of the ceramics was made by two distinct techniques: conventional sintering using an electric furnace; and by a laser sintering process in which a CO
Publicado em: 2006
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5. Evaluation of the performance of different nano-ceramic tool grades when machining nickel-base, inconel 718, alloy
High-speed machining of aerospace alloys can be enhanced by the use of advanced cutting tool materials such as nano-grain size ceramics that exhibit improved physical and mechanical properties than their micron grain counterparts. The performance of recently developed nano-grain size ceramic tool materials were evaluated when machining nickel base, Inconel 7
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2004-03