{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/82339"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/82339","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Kinetics of Crystallization and Gelation in Colloidal Suspensions","abstract":"The competition between crystallization and gelation in colloidal suspensions is addressed as arising from three underlying processes at the particle level, viz., aggregation, dissociation, and rearrangement. Particles aggregate via Brownian encounters into clusters that have open structures. Subsequently, these particles rearrange into crystalline configurations to minimize their free energies. Simultaneously, bound particles can dissociate due to thermal motion. When particle rearrangement is rapid compared to the net rate of particle aggregation, crystalline clusters result. When rearrangement is slower, amorphous aggregates leading to gels result. With knowledge of particle aggregation, dissociation, and rearrangement processes, regions on colloidal phase diagrams where crystals occur are delineated from regions where gels result. Comparisons with recent experiments on globular protein suspensions are in excellent agreement suggesting that the model captures the underlying physics of the competition between gelation and crystallization. By establishing links between tunable interaction parameters and the resulting gelation and crystallization transitions, the present approach provides design rules for the control of colloidal phase transitions.","abstract_html":"The competition between crystallization and gelation in colloidal suspensions is addressed as arising from three underlying processes at the particle level, viz., aggregation, dissociation, and rearrangement. Particles aggregate via Brownian encounters into clusters that have open structures. Subsequently, these particles rearrange into crystalline configurations to minimize their free energies. Simultaneously, bound particles can dissociate due to thermal motion. When particle rearrangement is rapid compared to the net rate of particle aggregation, crystalline clusters result. When rearrangement is slower, amorphous aggregates leading to gels result. With knowledge of particle aggregation, dissociation, and rearrangement processes, regions on colloidal phase diagrams where crystals occur are delineated from regions where gels result. Comparisons with recent experiments on globular protein suspensions are in excellent agreement suggesting that the model captures the underlying physics of the competition between gelation and crystallization. By establishing links between tunable interaction parameters and the resulting gelation and crystallization transitions, the present approach provides design rules for the control of colloidal phase transitions.","abstract_has_math":false,"creators":["Dixit, Narendra Madhukar"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Chemical Engineering","degree_department":null,"school":null,"contributors":["Zukoski, Charles F."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-25T20:43:10Z","date_published":"2015-09-25T20:43:10Z","updated_at":"2026-07-22T22:26:18Z","subjects":["Engineering, Chemical"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI3069986"],"render_values":[{"text":"(MiAaPQ)AAI3069986","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/82339","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Zukoski, Charles F."]},{"key":"dc:creator","label":"Author","values":["Dixit, Narendra Madhukar"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-25T20:43:10Z","10000-01-01","2002"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Chemical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"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":["Engineering, Chemical"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/82339","(MiAaPQ)AAI3069986"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The competition between crystallization and gelation in colloidal suspensions is addressed as arising from three underlying processes at the particle level, viz., aggregation, dissociation, and rearrangement. Particles aggregate via Brownian encounters into clusters that have open structures. Subsequently, these particles rearrange into crystalline configurations to minimize their free energies. Simultaneously, bound particles can dissociate due to thermal motion. When particle rearrangement is rapid compared to the net rate of particle aggregation, crystalline clusters result. When rearrangement is slower, amorphous aggregates leading to gels result. With knowledge of particle aggregation, dissociation, and rearrangement processes, regions on colloidal phase diagrams where crystals occur are delineated from regions where gels result. Comparisons with recent experiments on globular protein suspensions are in excellent agreement suggesting that the model captures the underlying physics of the competition between gelation and crystallization. By establishing links between tunable interaction parameters and the resulting gelation and crystallization transitions, the present approach provides design rules for the control of colloidal phase transitions.","Made available in DSpace on 2015-09-25T20:43:10Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3069986.pdf: 9658225 bytes, checksum: efafe36b21312fd97405b4c985f71963 (MD5) Previous issue date: 2002","Embargo set by: Seth Robbins for item 83620 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","288 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2002."]},{"key":"dc:title","label":"Title","values":["Kinetics of Crystallization and Gelation in Colloidal Suspensions"]}]}],"canonical_facts":{"dc:contributor":["Zukoski, Charles F."],"dc:creator":["Dixit, Narendra Madhukar"],"dc:date":["2015-09-25T20:43:10Z","10000-01-01","2002"],"dc:description":["The competition between crystallization and gelation in colloidal suspensions is addressed as arising from three underlying processes at the particle level, viz., aggregation, dissociation, and rearrangement. Particles aggregate via Brownian encounters into clusters that have open structures. Subsequently, these particles rearrange into crystalline configurations to minimize their free energies. Simultaneously, bound particles can dissociate due to thermal motion. When particle rearrangement is rapid compared to the net rate of particle aggregation, crystalline clusters result. When rearrangement is slower, amorphous aggregates leading to gels result. With knowledge of particle aggregation, dissociation, and rearrangement processes, regions on colloidal phase diagrams where crystals occur are delineated from regions where gels result. Comparisons with recent experiments on globular protein suspensions are in excellent agreement suggesting that the model captures the underlying physics of the competition between gelation and crystallization. By establishing links between tunable interaction parameters and the resulting gelation and crystallization transitions, the present approach provides design rules for the control of colloidal phase transitions.","Made available in DSpace on 2015-09-25T20:43:10Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3069986.pdf: 9658225 bytes, checksum: efafe36b21312fd97405b4c985f71963 (MD5) Previous issue date: 2002","Embargo set by: Seth Robbins for item 83620 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","288 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2002."],"dc:identifier":["http://hdl.handle.net/2142/82339","(MiAaPQ)AAI3069986"],"dc:language":["eng"],"dc:subject":["Engineering, Chemical"],"dc:title":["Kinetics of Crystallization and Gelation in Colloidal Suspensions"],"dc:type":["text"],"thesis:degree_discipline":["Chemical Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:18Z"}