{"id":{"repo_id":"njit","oai_identifier":"oai:digitalcommons.njit.edu:theses-1419"},"canonical_url":"https://search.dev.ndltd.org/etd/njit/oai:digitalcommons.njit.edu:theses-1419","repository":{"repo_id":"njit","name":"NJIT","base_url":"https://digitalcommons.njit.edu/do/oai/"},"display":{"title":"Dry magnetic assisted impaction mixing of sub-micron boron and barium chromate for a time delay composition","abstract":"The objective of this investigation is to improve the mixture homogeneity of, Boron and Barium Chromate, a delay composition called T-10, using a novel dry mixing technique, , called the Magnetic Assisted Impaction Mixing (MAIM). Two additional mixing methods, ultra-sonic mixing and shaker mixing (dry and wet), were used for comparative analysis, to evaluate the mixing effectiveness of the MAIM which was also compared to two Navy mixed T-l0 samples. Characterization of the homogeneity is described by how well boron is effectively distributed throughout the mixture, which is a challenging task since the mixture's composition is 3% Boron versus 97% of Barium Chromate by weight, because boron has a low energy signature in energy dispersive x-ray (EDX) analysis. Qualitative mixing characterization was done using Field Emission-Scanning Electron Microscope (FESEM) with an ESB detector which provides higher Z contrast at extremely low accelerating voltage, resulting in higher spatial resolution and other systems such as Particle Size Analyzer (LS-230). The results indicate that the new MAIM techniques produces a mixture with a significantly improved homogeneity and a narrow particle size distribution due to its ability to break down large powder aggregates at a fraction of the time compared to the current Navy wet mixing processes, eliminates downstream processing associated with drying, and shows improved performance in majority of combustion propagation bum tests.","abstract_html":"The objective of this investigation is to improve the mixture homogeneity of, Boron and Barium Chromate, a delay composition called T-10, using a novel dry mixing technique, , called the Magnetic Assisted Impaction Mixing (MAIM). Two additional mixing methods, ultra-sonic mixing and shaker mixing (dry and wet), were used for comparative analysis, to evaluate the mixing effectiveness of the MAIM which was also compared to two Navy mixed T-l0 samples. Characterization of the homogeneity is described by how well boron is effectively distributed throughout the mixture, which is a challenging task since the mixture's composition is 3% Boron versus 97% of Barium Chromate by weight, because boron has a low energy signature in energy dispersive x-ray (EDX) analysis. Qualitative mixing characterization was done using Field Emission-Scanning Electron Microscope (FESEM) with an ESB detector which provides higher Z contrast at extremely low accelerating voltage, resulting in higher spatial resolution and other systems such as Particle Size Analyzer (LS-230). The results indicate that the new MAIM techniques produces a mixture with a significantly improved homogeneity and a narrow particle size distribution due to its ability to break down large powder aggregates at a fraction of the time compared to the current Navy wet mixing processes, eliminates downstream processing associated with drying, and shows improved performance in majority of combustion propagation bum tests.","abstract_has_math":false,"creators":["Barrow, Ryan"],"institution":null,"degree_name":"Master of Science in Mechanical Engineering - (M.S.)","degree_level":null,"degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Rajesh N. Dave","Edward L. Dreyzin","Mirko Schoenitz"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2006,"date_issued":"2006-05-31T07:00:00Z","date_published":"2006-05-31T07:00:00Z","updated_at":"2026-07-24T03:23:22Z","subjects":["Born and barium chromate","Dry mixing","Magnetic Assisted Impaction Mixing","Mechanical Engineering"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://digitalcommons.njit.edu/theses/420","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Rajesh N. Dave","Edward L. Dreyzin","Mirko Schoenitz"]},{"key":"dc:creator","label":"Author","values":["Barrow, Ryan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical Engineering"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science in Mechanical Engineering - (M.S.)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Born and barium chromate","Dry mixing","Magnetic Assisted Impaction Mixing","Mechanical Engineering"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://digitalcommons.njit.edu/theses/420"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The objective of this investigation is to improve the mixture homogeneity of, Boron and Barium Chromate, a delay composition called T-10, using a novel dry mixing technique, , called the Magnetic Assisted Impaction Mixing (MAIM). Two additional mixing methods, ultra-sonic mixing and shaker mixing (dry and wet), were used for comparative analysis, to evaluate the mixing effectiveness of the MAIM which was also compared to two Navy mixed T-l0 samples. Characterization of the homogeneity is described by how well boron is effectively distributed throughout the mixture, which is a challenging task since the mixture's composition is 3% Boron versus 97% of Barium Chromate by weight, because boron has a low energy signature in energy dispersive x-ray (EDX) analysis. Qualitative mixing characterization was done using Field Emission-Scanning Electron Microscope (FESEM) with an ESB detector which provides higher Z contrast at extremely low accelerating voltage, resulting in higher spatial resolution and other systems such as Particle Size Analyzer (LS-230). The results indicate that the new MAIM techniques produces a mixture with a significantly improved homogeneity and a narrow particle size distribution due to its ability to break down large powder aggregates at a fraction of the time compared to the current Navy wet mixing processes, eliminates downstream processing associated with drying, and shows improved performance in majority of combustion propagation bum tests."]},{"key":"dc:title","label":"Title","values":["Dry magnetic assisted impaction mixing of sub-micron boron and barium chromate for a time delay composition"]}]}],"canonical_facts":{"dc:contributor":["Rajesh N. Dave","Edward L. Dreyzin","Mirko Schoenitz"],"dc:creator":["Barrow, Ryan"],"dc:description.abstract":["The objective of this investigation is to improve the mixture homogeneity of, Boron and Barium Chromate, a delay composition called T-10, using a novel dry mixing technique, , called the Magnetic Assisted Impaction Mixing (MAIM). Two additional mixing methods, ultra-sonic mixing and shaker mixing (dry and wet), were used for comparative analysis, to evaluate the mixing effectiveness of the MAIM which was also compared to two Navy mixed T-l0 samples. Characterization of the homogeneity is described by how well boron is effectively distributed throughout the mixture, which is a challenging task since the mixture's composition is 3% Boron versus 97% of Barium Chromate by weight, because boron has a low energy signature in energy dispersive x-ray (EDX) analysis. Qualitative mixing characterization was done using Field Emission-Scanning Electron Microscope (FESEM) with an ESB detector which provides higher Z contrast at extremely low accelerating voltage, resulting in higher spatial resolution and other systems such as Particle Size Analyzer (LS-230). The results indicate that the new MAIM techniques produces a mixture with a significantly improved homogeneity and a narrow particle size distribution due to its ability to break down large powder aggregates at a fraction of the time compared to the current Navy wet mixing processes, eliminates downstream processing associated with drying, and shows improved performance in majority of combustion propagation bum tests."],"dc:identifier":["https://digitalcommons.njit.edu/theses/420"],"dc:subject":["Born and barium chromate","Dry mixing","Magnetic Assisted Impaction Mixing","Mechanical Engineering"],"dc:title":["Dry magnetic assisted impaction mixing of sub-micron boron and barium chromate for a time delay composition"],"dc:type":["Thesis"],"thesis:degree_discipline":["Mechanical Engineering"],"thesis:degree_name":["Master of Science in Mechanical Engineering - (M.S.)"]},"updated_at":"2026-07-24T03:23:22Z"}