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dc.contributor.advisorBeaman, Joseph J.
dc.creatorJohnson, Gerard Adriel, 1983-
dc.date.accessioned2017-03-20T21:09:37Z
dc.date.available2017-03-20T21:09:37Z
dc.date.issued2007-05
dc.identifierdoi:10.15781/T2K931B8B
dc.identifier.urihttp://hdl.handle.net/2152/46131
dc.description.abstractDuring the experimental phase of this research, experimentalists discovered several small protrusions on the surface of silicon/silicon carbide metal matrix composites, which were created using a customized pressureless infiltration technique. These protrusions, called overfillings, differed in size and were spontaneously distributed on the surface of the infiltrated body. It was hypothesized that these overfillings were the result of the silicon’s large positive volume phase change. Through the use of several computer models, hypothesis of the previous experimental research was confirmed. It was ultimately determined that the overfillings are not the result of the shrinking silicon carbide skeleton, but are, instead, the result of the silicon’s phase change properties, which cause it to expand upon solidification. As the infiltrated body cools, the silicon changes from liquid to solid phase, expanding 10%. Because the silicon carbide skeleton is completely saturated with the liquid silicon, the liquid silicon is forced out of the composite as it solidifies, resulting in overfilling. Not only does this paper provide a detailed analysis of the computer modeling techniques used for the simulations and their correlating results, but this paper also explains the experimental research on which the computer models are founded.en_US
dc.format.mediumelectronicen_US
dc.language.isoengen_US
dc.relation.ispartofUT Electronic Theses and Dissertationsen_US
dc.rightsCopyright © is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.en_US
dc.subjectComputer modelsen_US
dc.subjectSilicon compositesen_US
dc.subjectOverfillingsen_US
dc.titleModeling of a silicon/silicon carbide pressureless infiltration processen_US
dc.typeThesisen_US
dc.description.departmentMechanical Engineeringen_US
dc.type.genreThesisen_US
thesis.degree.departmentMechanical Engineeringen_US
thesis.degree.disciplineMechanical Engineeringen_US
thesis.degree.grantorUniversity of Texas at Austinen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
dc.rights.restrictionRestricteden_US


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