2017-02-072017-02-072015-11-27NASCIMENTO, Luiz Gabriel da Silva. Influência da adição de nanotubos de carbono nas propriedades mecânicas da liga AL-2%NI solidificadas direcionalmente. Orientador: José Antônio da Silva Souza; Coorientador: Fernando Antônio de Sá. 2015. 142 f. Tese (Doutorado em Engenharia de Recursos Naturais da Amazônia) – Instituto de Tecnologia, Universidade Federal do Pará, Belém, 2015. Disponível em: http://repositorio.ufpa.br/jspui/handle/2011/7583. Acesso em:.https://repositorio.ufpa.br/handle/2011/7583In this work, we produced a hypoeutectic Al-2wt%Ni matrix, to which we added various concentrations of carbon nanotubes, in order to evaluate the evolution of the mechanical strength of the new material. The manufacturing process occurred by melting and ascending unidirectional abrupt cooling, with extraction of the heat transient and determination of the thermal variables involved in the solidification. Scanning Electron Microscopy images show how the nanotubes are settled in the matrix, and by means of Raman Spectroscopy, we were able to determine the “D” and “G” bands and analyze the action of the process over them. By means of metallographic and mechanical tests, we were able to characterize the macro and micro-structural behaviors and the mechanical properties. The addition of small quantities of nanotubes led to a significant raise in the mechanical strength of the matrix.Acesso AbertoSolidificaçãoSolidificação dos metaisSistema Al-NiCaracterização microestruturalPropriedades mecânicasNanotubos de carbonoSolidificationSolidification of metalsAl-Ni SystemMicrostructural characterizationMechanical propertiersCarbon nanotubesTeseCNPQ::ENGENHARIAS::ENGENHARIA MECANICA