Iannacchione, Germano S.
Lados, Diana A.
Transport properties are important to the selection of a material for energy applications. In this project, relationships between materials’ microstructure and micro-hardness and their thermal and electrical conductivities have been developed. Three aluminum alloys with various secondary dendrite arm spacing, eutectic Si morphology, and aging conditions have been selected. Thermal conductivity was investigated using a custom-built apparatus applying a DC method, while the electrical resistivity used a four-wire Digital Multimeter method. Their microstructures were observed using an optical microscope, and the α-Al matrix resistance was evaluated using micro-hardness tests. Conductivity correlations made to the materials’ microstructures and aging conditions will be presented.
Worcester Polytechnic Institute
Major Qualifying Project
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