{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/51887"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/51887","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"The oxidation of ilmenite: a kinetic study","abstract":"Synthetically obtained ilmenite (FeO·TiO₂) particles were oxidized under conditions of a non-linear temperature increase over the range 300°-850°C. Short-circuit diffusion in the initial stages of oxidation gave an activation energy of 4.35 ± 0.4 kcal/mole, while above 525°C the activation energy was 50.2 ± 3.0 kcal/mole. The process was shown to be diffusion controlled, with iron the likely mobile species above 525°C, while no mechanism could be singled out for the controlling step in the early stages. The oxidation products in O₂ after 24 hours were shown to be pseudorutile (Fe₂Ti₃O₉) and hematite (Fe₂O₃) in a finely dispersed phase at temperatures below about 800°C, with pseudobrookite (Fe₂TiO₅) and rutile (TiO₂) being stable above this temperature.","abstract_html":"Synthetically obtained ilmenite (FeO·TiO₂) particles were oxidized under conditions of a non-linear temperature increase over the range 300°-850°C. Short-circuit diffusion in the initial stages of oxidation gave an activation energy of 4.35 ± 0.4 kcal/mole, while above 525°C the activation energy was 50.2 ± 3.0 kcal/mole. The process was shown to be diffusion controlled, with iron the likely mobile species above 525°C, while no mechanism could be singled out for the controlling step in the early stages. The oxidation products in O₂ after 24 hours were shown to be pseudorutile (Fe₂Ti₃O₉) and hematite (Fe₂O₃) in a finely dispersed phase at temperatures below about 800°C, with pseudobrookite (Fe₂TiO₅) and rutile (TiO₂) being stable above this temperature.","abstract_has_math":false,"creators":["Corsa, Lawrence J."],"institution":"Virginia Polytechnic Institute and State University","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Materials Engineering","degree_department":"Materials Engineering","school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1977,"date_issued":"1977","date_published":"1977","updated_at":"2026-07-22T22:19:35Z","subjects":[],"languages":["en_US"],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10919/51887","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.department","label":"Department","values":["Materials Engineering"]},{"key":"dc:creator","label":"Author","values":["Corsa, Lawrence J."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2015-04-29T18:10:07Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2015-04-29T18:10:07Z"]},{"key":"dc:date.issued","label":"Date","values":["1977"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Polytechnic Institute and State University"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.dcmitype","label":"Dc Type Dcmitype","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Materials Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_US"]},{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/51887"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Synthetically obtained ilmenite (FeO·TiO₂) particles were oxidized under conditions of a non-linear temperature increase over the range 300°-850°C. Short-circuit diffusion in the initial stages of oxidation gave an activation energy of 4.35 ± 0.4 kcal/mole, while above 525°C the activation energy was 50.2 ± 3.0 kcal/mole. The process was shown to be diffusion controlled, with iron the likely mobile species above 525°C, while no mechanism could be singled out for the controlling step in the early stages. The oxidation products in O₂ after 24 hours were shown to be pseudorutile (Fe₂Ti₃O₉) and hematite (Fe₂O₃) in a finely dispersed phase at temperatures below about 800°C, with pseudobrookite (Fe₂TiO₅) and rutile (TiO₂) being stable above this temperature."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["The oxidation of ilmenite: a kinetic study"]}]}],"canonical_facts":{"dc:contributor.department":["Materials Engineering"],"dc:creator":["Corsa, Lawrence J."],"dc:date.accessioned":["2015-04-29T18:10:07Z"],"dc:date.available":["2015-04-29T18:10:07Z"],"dc:date.issued":["1977"],"dc:description.abstract":["Synthetically obtained ilmenite (FeO·TiO₂) particles were oxidized under conditions of a non-linear temperature increase over the range 300°-850°C. Short-circuit diffusion in the initial stages of oxidation gave an activation energy of 4.35 ± 0.4 kcal/mole, while above 525°C the activation energy was 50.2 ± 3.0 kcal/mole. The process was shown to be diffusion controlled, with iron the likely mobile species above 525°C, while no mechanism could be singled out for the controlling step in the early stages. The oxidation products in O₂ after 24 hours were shown to be pseudorutile (Fe₂Ti₃O₉) and hematite (Fe₂O₃) in a finely dispersed phase at temperatures below about 800°C, with pseudobrookite (Fe₂TiO₅) and rutile (TiO₂) being stable above this temperature."],"dc:description.degree":["Master of Science"],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["http://hdl.handle.net/10919/51887"],"dc:language.iso":["en_US"],"dc:publisher":["Virginia Polytechnic Institute and State University"],"dc:rights":["In Copyright"],"dc:rights.uri":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:title":["The oxidation of ilmenite: a kinetic study"],"dc:type":["Thesis"],"dc:type.dcmitype":["Text"],"thesis:degree_discipline":["Materials Engineering"],"thesis:degree_level":["masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Virginia Polytechnic Institute and State University"]},"updated_at":"2026-07-22T22:19:35Z"}