{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/35367"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/35367","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Reaction Synthesis of Titanium Aluminide / Titanium Diboride in-Situ Composites","abstract":"Reaction synthesis is a processing technique where the thermal activation energy needed to form a compound is provided by the exothermic heat of formation of the thermodynamically stable product. This type of synthesis has been used to form a variety of ceramics, intermetallics, and in-situ composites. In this work, the effects of changing the stoichiometry of the titanium aluminide matrix, and the effects of extrinsic reaction variables on the behavior of the reaction were studied and compared to theoretical predictions. It was shown that changing the stoichiometry of the titanium aluminide did have an effect on the measured heat of reaction; however this did not match the prediction. Changing the extrinsic variables of titanium and aluminum particle sizes also showed a significant effect on the behavior of the reaction.","abstract_html":"Reaction synthesis is a processing technique where the thermal activation energy needed to form a compound is provided by the exothermic heat of formation of the thermodynamically stable product. This type of synthesis has been used to form a variety of ceramics, intermetallics, and in-situ composites. In this work, the effects of changing the stoichiometry of the titanium aluminide matrix, and the effects of extrinsic reaction variables on the behavior of the reaction were studied and compared to theoretical predictions. It was shown that changing the stoichiometry of the titanium aluminide did have an effect on the measured heat of reaction; however this did not match the prediction. Changing the extrinsic variables of titanium and aluminum particle sizes also showed a significant effect on the behavior of the reaction.","abstract_has_math":false,"creators":["Jeffers, Elizabeth Ann"],"institution":"Virginia Tech","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Materials Science and Engineering","degree_department":"Materials Science and Engineering","school":null,"contributors":[],"advisors":[],"committee_chairs":["Kampe, Stephen L."],"committee_members":["Logan, Kathryn V.","Suchicital, Carlos T. A."],"year":2006,"date_issued":"2006-09-28","date_published":"2006-09-28","updated_at":"2026-07-22T22:20:32Z","subjects":["Titanium Diboride","In-Situ Composite","SHS","Titanium Aluminide","Reaction synthesis","DSC"],"languages":[],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["etd-10122006-193701"],"render_values":[{"text":"etd-10122006-193701","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10919/35367","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.committeechair","label":"Committee Chair","values":["Kampe, Stephen L."]},{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Logan, Kathryn V.","Suchicital, Carlos T. 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This type of synthesis has been used to form a variety of ceramics, intermetallics, and in-situ composites. In this work, the effects of changing the stoichiometry of the titanium aluminide matrix, and the effects of extrinsic reaction variables on the behavior of the reaction were studied and compared to theoretical predictions. It was shown that changing the stoichiometry of the titanium aluminide did have an effect on the measured heat of reaction; however this did not match the prediction. Changing the extrinsic variables of titanium and aluminum particle sizes also showed a significant effect on the behavior of the reaction."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:title","label":"Title","values":["Reaction Synthesis of Titanium Aluminide / Titanium Diboride in-Situ Composites"]}]}],"canonical_facts":{"dc:contributor.committeechair":["Kampe, Stephen L."],"dc:contributor.committeemember":["Logan, Kathryn V.","Suchicital, Carlos T. A."],"dc:contributor.department":["Materials Science and Engineering"],"dc:creator":["Jeffers, Elizabeth Ann"],"dc:date.accessioned":["2014-03-14T20:46:38Z"],"dc:date.available":["2014-03-14T20:46:38Z","2006-11-29"],"dc:date.issued":["2006-09-28"],"dc:description.abstract":["Reaction synthesis is a processing technique where the thermal activation energy needed to form a compound is provided by the exothermic heat of formation of the thermodynamically stable product. This type of synthesis has been used to form a variety of ceramics, intermetallics, and in-situ composites. In this work, the effects of changing the stoichiometry of the titanium aluminide matrix, and the effects of extrinsic reaction variables on the behavior of the reaction were studied and compared to theoretical predictions. It was shown that changing the stoichiometry of the titanium aluminide did have an effect on the measured heat of reaction; however this did not match the prediction. 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