{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/120091"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/120091","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Characterization of a multimode propellant operating in a porous glass electrospray thruster","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms","abstract_has_math":false,"creators":["Adduci, Anthony"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Aerospace Engineering","degree_department":null,"school":null,"contributors":["Rovey, Joshua"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023-05","date_published":"2023-05","updated_at":"2026-07-22T22:24:56Z","subjects":["Multimode","Electrospray","Porous Glass"],"languages":["en","eng"],"rights":["Copyright 2023 Anthony Adduci"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/120091","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Rovey, Joshua"]},{"key":"dc:creator","label":"Author","values":["Adduci, Anthony"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2023-05","2023-04-26"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Aerospace Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Multimode","Electrospray","Porous Glass"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2023 Anthony Adduci"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/120091"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms","The student, Anthony Adduci, accepted the attached license on 2023-04-24 at 12:11.","The student, Anthony Adduci, submitted this Thesis for approval on 2023-04-24 at 12:16.","This Thesis was approved for publication on 2023-04-26 at 09:49.","DSpace SAF Submission Ingestion Package generated from Vireo submission #19136 on 2023-09-01 at 16:55:11","Multimode space propulsion is an emerging technology that shows a promising increase in mission flexibility, adaptability, and mass savings for specific missions [1]. Finding a propellant that operates well in multiple propulsive modes is a key step in getting multimode propulsion systems flying in space. This study characterizes a novel multimode propellant named FAM-110A through operation in a porous glass electrospray thruster. Measurements acquired include current-voltage characteristic curves, plume ion potential via a retarding potential analyzer, and mass to charge ratio via a linear time of flight spectrometer. FAM-110A emitted more current at comparable emitter voltages as compared to EMIM-BF4. Currents of 422 μA and 305 μA were observed at voltages of +1760 V and -1730 V respectively. RPA measurements showed less field free fragmentation during thruster operation with FAM-110A and also a 0.9% average energy efficiency. During cation emission, it was found that the FAM-110A plume consists of primarily the EMIM cation with no observable evidence of the presence of HA+. Many species were found to exist in the negative emission plume including the two know anions: nitrate, and ethylsulfate. Performance parameters were calculated for each propellant. The calculations showed the thruster operating with FAM-110A produced 3.9 μN and 9.1 μN more thrust in cation and anion emission, respectively. The specific impulse of FAM-110A was 1412 seconds lower in positive mode and 1485 seconds lower in negative mode. The calculated propulsive efficiency for FAM-110A was 35.9% lower during positive mode and 21.2% lower during negative mode when compared to EMIM-BF4."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Characterization of a multimode propellant operating in a porous glass electrospray thruster"]}]}],"canonical_facts":{"dc:contributor":["Rovey, Joshua"],"dc:creator":["Adduci, Anthony"],"dc:date":["2023-05","2023-04-26"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms","The student, Anthony Adduci, accepted the attached license on 2023-04-24 at 12:11.","The student, Anthony Adduci, submitted this Thesis for approval on 2023-04-24 at 12:16.","This Thesis was approved for publication on 2023-04-26 at 09:49.","DSpace SAF Submission Ingestion Package generated from Vireo submission #19136 on 2023-09-01 at 16:55:11","Multimode space propulsion is an emerging technology that shows a promising increase in mission flexibility, adaptability, and mass savings for specific missions [1]. Finding a propellant that operates well in multiple propulsive modes is a key step in getting multimode propulsion systems flying in space. This study characterizes a novel multimode propellant named FAM-110A through operation in a porous glass electrospray thruster. Measurements acquired include current-voltage characteristic curves, plume ion potential via a retarding potential analyzer, and mass to charge ratio via a linear time of flight spectrometer. FAM-110A emitted more current at comparable emitter voltages as compared to EMIM-BF4. Currents of 422 μA and 305 μA were observed at voltages of +1760 V and -1730 V respectively. RPA measurements showed less field free fragmentation during thruster operation with FAM-110A and also a 0.9% average energy efficiency. During cation emission, it was found that the FAM-110A plume consists of primarily the EMIM cation with no observable evidence of the presence of HA+. Many species were found to exist in the negative emission plume including the two know anions: nitrate, and ethylsulfate. Performance parameters were calculated for each propellant. The calculations showed the thruster operating with FAM-110A produced 3.9 μN and 9.1 μN more thrust in cation and anion emission, respectively. The specific impulse of FAM-110A was 1412 seconds lower in positive mode and 1485 seconds lower in negative mode. The calculated propulsive efficiency for FAM-110A was 35.9% lower during positive mode and 21.2% lower during negative mode when compared to EMIM-BF4."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/120091"],"dc:language":["en","eng"],"dc:rights":["Copyright 2023 Anthony Adduci"],"dc:subject":["Multimode","Electrospray","Porous Glass"],"dc:title":["Characterization of a multimode propellant operating in a porous glass electrospray thruster"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Aerospace Engineering"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:56Z"}