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dc.contributor.advisorSuárez, O. Marcelo
dc.contributor.authorVargas Martinez, Juan Carlos
dc.date.accessioned2018-11-29T18:56:29Z
dc.date.available2018-11-29T18:56:29Z
dc.date.issued2018-06-01
dc.identifier.urihttps://hdl.handle.net/20.500.11801/1565
dc.description.abstractThrough free corrosion in sodium hydroxide, a new porous material was successfully fabricated by removing a single phase of the aluminum-copper alloy. This selective phase dissolution was performed for the eutectic composition of the aluminum-copper binary system and additionally for two hypereutectic compositions. The porosity of the material depends on the microstructure formed in the solidification process. For this, several solidification methods were analyzed in order to define the most convenient in terms of uniformity and refinement in the pore and ligament sizes. The concentration of the solution was determined by observing the effectiveness of the process during and after the corrosion, when the 10% v/v aqueous solution of sodium hydroxide was used better results were observed. The porosity was calculated after the selective dissolution through analysis of images obtained from a scanning electron microscope. In addition, the average pore and ligament size was measured for each composition. Finally, the effectiveness of the process was verified using x-ray diffraction, which showed that under the proposed methodology there was complete removal of one of the phases of the alloy.en_US
dc.description.sponsorshipThis research was supported by the National Science Foundation under Grant No. 1345156 (CREST program).en_US
dc.language.isoenen_US
dc.subjectSelective dissolutionen_US
dc.subjectFree corrosion
dc.subject.lcshPorous materialsen_US
dc.subject.lcshPorosityen_US
dc.subject.lcshAluminium-copper alloysen_US
dc.subject.lcshMetals -- Dissolutionen_US
dc.subject.lcshSodium hydroxideen_US
dc.subject.lcshSolidificationen_US
dc.titleFabrication of porous metals via selective phase dissolution of an Al-Cu alloyen_US
dc.typeThesisen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder© 2018 Juan Carlos Vargas Martinezen_US
dc.contributor.committeeHernández, Arturo
dc.contributor.committeeQuintero, Pedro
dc.contributor.committeePerez, Nestor
dc.contributor.representativeCardona, Nelson
thesis.degree.levelM.S.en_US
thesis.degree.disciplineMechanical Engineeringen_US
dc.contributor.collegeCollege of Engineeringen_US
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.description.graduationSemesterSpringen_US
dc.description.graduationYear2018en_US


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