{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/127157"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/127157","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Scalable manufacturing and durability characterization of functional surfaces for condensation and anti-frosting purposes","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms","abstract_has_math":false,"creators":["Qiu, Haoyun"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Miljkovic, Nenad"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2024,"date_issued":"2024-10-09","date_published":"2024-10-09","updated_at":"2026-07-22T22:25:03Z","subjects":["Surfaces","Coating","Frosting","Defrosting","Superhydrophobic","Durability","Biphilic","Hybrid","Condensation","Patterns","Structures"],"languages":["en","eng"],"rights":["Copyright 2024 Haoyun Qiu"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/127157","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Miljkovic, Nenad"]},{"key":"dc:creator","label":"Author","values":["Qiu, Haoyun"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2024-10-09","2024-12"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical 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":["Surfaces","Coating","Frosting","Defrosting","Superhydrophobic","Durability","Biphilic","Hybrid","Condensation","Patterns","Structures"]}]},{"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 2024 Haoyun Qiu"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/127157"]}]},{"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 2025-03-28 without embargo terms","The student, Haoyun Qiu, accepted the attached license on 2024-10-08 at 13:57.","The student, Haoyun Qiu, submitted this Thesis for approval on 2024-10-08 at 14:00.","This Thesis was approved for publication on 2024-10-09 at 16:55.","DSpace SAF Submission Ingestion Package generated from Vireo submission #21246 on 2025-03-28 at 14:25:07","The rapid implementation of renewable energy technologies has exacerbated potential for economic loss and safety concerns caused by ice and frost accretion. The past decade has seen advances in surface chemistry and micro and nanostructures which can promote passive anti-frosting and enhanced defrosting. However, durability of these surfaces remains the major obstacle preventing real-life application. To address this need, we conducted durability tests on assorted anti-frosting surfaces. and slippery liquid infused surfaces. For superhydrophobic surfaces, we demonstrate durability with progressive degradation for up to 1000 cycles of atmospheric frost-defrost and month-long outdoor exposure tests. We show that progressive degradation results from the molecular-level degradation of the low-surface-energy self-assembled monolayer (SAM), which leads to local high-surface-energy defects that promote accumulation of atmosphere particulate matter during cyclic frosting and defrosting. One of the functional surfaces that can benefit condensation and anti-frosting is the bioinspired hybrid surfaces, which juxtapose hydrophilicity and hydrophobicity. However, controlling hydrophilicity on hybrid surfaces in a scalable fashion is a challenge, limiting their application. Here, by using widely available metal meshes, we can scalably fabricate hybrid surfaces with controlled pattern density. Condensate-frosting experiments reveal that on grid patterned hybrid surfaces, frost propagates at ~160% higher velocity and provides ~20% less frost coverage when compared to homogeneous superhydrophobic surfaces. We adapt our fabrication technique to roll-to-roll patterning, demonstrating wettability contrast on round metallic tubes via atmospheric water vapor condensation. This work provides guidelines for the rapid, substrate independent, and scalable fabrication of hybrid wettability surfaces for a wide variety of applications."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Scalable manufacturing and durability characterization of functional surfaces for condensation and anti-frosting purposes"]}]}],"canonical_facts":{"dc:contributor":["Miljkovic, Nenad"],"dc:creator":["Qiu, Haoyun"],"dc:date":["2024-10-09","2024-12"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-03-28 without embargo terms","The student, Haoyun Qiu, accepted the attached license on 2024-10-08 at 13:57.","The student, Haoyun Qiu, submitted this Thesis for approval on 2024-10-08 at 14:00.","This Thesis was approved for publication on 2024-10-09 at 16:55.","DSpace SAF Submission Ingestion Package generated from Vireo submission #21246 on 2025-03-28 at 14:25:07","The rapid implementation of renewable energy technologies has exacerbated potential for economic loss and safety concerns caused by ice and frost accretion. The past decade has seen advances in surface chemistry and micro and nanostructures which can promote passive anti-frosting and enhanced defrosting. However, durability of these surfaces remains the major obstacle preventing real-life application. To address this need, we conducted durability tests on assorted anti-frosting surfaces. and slippery liquid infused surfaces. For superhydrophobic surfaces, we demonstrate durability with progressive degradation for up to 1000 cycles of atmospheric frost-defrost and month-long outdoor exposure tests. We show that progressive degradation results from the molecular-level degradation of the low-surface-energy self-assembled monolayer (SAM), which leads to local high-surface-energy defects that promote accumulation of atmosphere particulate matter during cyclic frosting and defrosting. One of the functional surfaces that can benefit condensation and anti-frosting is the bioinspired hybrid surfaces, which juxtapose hydrophilicity and hydrophobicity. However, controlling hydrophilicity on hybrid surfaces in a scalable fashion is a challenge, limiting their application. Here, by using widely available metal meshes, we can scalably fabricate hybrid surfaces with controlled pattern density. Condensate-frosting experiments reveal that on grid patterned hybrid surfaces, frost propagates at ~160% higher velocity and provides ~20% less frost coverage when compared to homogeneous superhydrophobic surfaces. We adapt our fabrication technique to roll-to-roll patterning, demonstrating wettability contrast on round metallic tubes via atmospheric water vapor condensation. This work provides guidelines for the rapid, substrate independent, and scalable fabrication of hybrid wettability surfaces for a wide variety of applications."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/127157"],"dc:language":["en","eng"],"dc:rights":["Copyright 2024 Haoyun Qiu"],"dc:subject":["Surfaces","Coating","Frosting","Defrosting","Superhydrophobic","Durability","Biphilic","Hybrid","Condensation","Patterns","Structures"],"dc:title":["Scalable manufacturing and durability characterization of functional surfaces for condensation and anti-frosting purposes"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Mechanical Engineering"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:03Z"}