dc.contributor |
Universitat Politècnica de Catalunya. Departament de Física Aplicada |
dc.contributor |
Serrano Gutiérrez, Jorge |
dc.contributor.author |
Belart Bayo, Oscar |
dc.date |
2009-03-18 |
dc.identifier.uri |
http://hdl.handle.net/2099.1/6761 |
dc.language.iso |
eng |
dc.publisher |
Universitat Politècnica de Catalunya |
dc.rights |
Attribution-NonCommercial-ShareAlike 3.0 Spain |
dc.rights |
info:eu-repo/semantics/openAccess |
dc.rights |
http://creativecommons.org/licenses/by-nc-sa/3.0/es/ |
dc.subject |
Àrees temàtiques de la UPC::Enginyeria dels materials |
dc.subject |
Metallic glasses -- Magnetic properties |
dc.subject |
Scanning electron microscopy |
dc.subject |
Metalic glass |
dc.subject |
Mecanic properties |
dc.subject |
Vidres metàl·lics -- Propietats magnètiques |
dc.title |
Production and Characterization of Mechanical Properties of Metallic Glasses |
dc.type |
info:eu-repo/semantics/bachelorThesis |
dc.description.abstract |
The metallic glasses represent a new class of materials. They were discovered
in 1960 and they have interesting structural and mechanical properties, which
made them attractive for applications in several fields. They have been used
since a few decades ago because of its magnetic properties and now the
mechanical ones have captured the interest of the scientific community.
The objective of this project is to produce and characterize a Pd-based metallic
glass, more specifically Pd77Si16.5Cu6.5, using different techniques. An Arc-
Melting device, a setup that produces an electric arc employed to melt the
constituent elements into balls, and a Melt-Spinner, a rapidly quenching
machine to produce micrometer thick ribbons, were utilized for production of
ribbons. In order to test the sample quality, they were analyzed with the
Scanning Electron Microscopy (SEM) technique, capable of extract the actual
composition with a small error.
As characterization techniques, we employed Inelastic Neutron Scattering
(INS) to unveil some of their vibrational properties.
Also, a second prefabricated alloy, Ce70Al10Ni10Cu10, was characterized using a
Dynamic Mechanical Analysis (DMA) which gave us information about its
mechanical properties. Two fundamental parameters were found: the glass
transition temperature and the fragility of the material.
This project contains two basic parts: production and characterization, where
the above mentioned methods and their results are explained. Furthermore,
each part contains its own conclusions.
Finally, the project conclusions are presented as a summary of the whole
project with the most important data and some suggestions for further research
on these exciting materials. |