{"id":"https://openalex.org/W112989906","doi":null,"title":"Effects of Surface Roughness on Electrical Contact, RF Heating and Field Enhancement.","display_name":"Effects of Surface Roughness on Electrical Contact, RF Heating and Field Enhancement.","publication_year":2012,"publication_date":"2012-01-01","ids":{"openalex":"https://openalex.org/W112989906","mag":"112989906"},"language":"en","primary_location":{"id":"pmh:oai:deepblue.lib.umich.edu:2027.42/95929","doi":null,"is_oa":true,"landing_page_url":"https://hdl.handle.net/2027.42/95929","pdf_url":"https://deepblue.lib.umich.edu/bitstreams/184533a3-8f98-486d-896f-8a7382b021a0/download","source":{"id":"https://openalex.org/S4306400393","display_name":"Deep Blue (University of Michigan)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I27837315","host_organization_name":"University of Michigan","host_organization_lineage":["https://openalex.org/I27837315"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Thesis"},"volume":null,"type":"dissertation","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://deepblue.lib.umich.edu/bitstreams/184533a3-8f98-486d-896f-8a7382b021a0/download","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100652467","display_name":"Peng Zhang","orcid":"https://orcid.org/0000-0002-2567-1498","observed_orcids":["https://orcid.org/0000-0002-2567-1498"]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Peng Zhang","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0002-2567-1498","affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5100652467"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":20,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12371","display_name":"Electrical Contact Performance and Analysis","score":0.70169997215271,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12371","display_name":"Electrical Contact Performance and Analysis","score":0.70169997215271,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11799","display_name":"Adhesion, Friction, and Surface Interactions","score":0.10019999742507935,"subfield":{"id":"https://openalex.org/subfields/2211","display_name":"Mechanics of Materials"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12077","display_name":"Vacuum and Plasma Arcs","score":0.013299999758601189,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/surface-roughness","display_name":"surface roughness","score":1.0},{"id":"https://openalex.org/keywords/contact-resistance","display_name":"contact resistance","score":0.8640000224113464},{"id":"https://openalex.org/keywords/thin-film-contacts","display_name":"thin film contacts","score":0.843999981880188},{"id":"https://openalex.org/keywords/dissimilar-materials","display_name":"dissimilar materials","score":0.7760000228881836},{"id":"https://openalex.org/keywords/scaling-laws","display_name":"scaling laws","score":0.9340000152587891},{"id":"https://openalex.org/keywords/current-crowding","display_name":"current crowding","score":0.7760000228881836},{"id":"https://openalex.org/keywords/radiofrequency-heating","display_name":"RF heating","score":0.8569999933242798},{"id":"https://openalex.org/keywords/field-enhancement","display_name":"field enhancement","score":0.8960000276565552},{"id":"https://openalex.org/keywords/rf-breakdown","display_name":"RF breakdown","score":0.7770000100135803},{"id":"https://openalex.org/keywords/superconducting-cavities","display_name":"superconducting cavities","score":0.925000011920929},{"id":"https://openalex.org/keywords/power-absorption","display_name":"power absorption","score":0.5199999809265137},{"id":"https://openalex.org/keywords/high-power-microwave-sources","display_name":"high-power microwave sources","score":0.6010000109672546},{"id":"https://openalex.org/keywords/resistivity-ratio","display_name":"resistivity ratio","score":0.5},{"id":"https://openalex.org/keywords/aspect-ratio","display_name":"aspect ratio","score":0.9760000109672546}],"concepts":[{"id":"https://openalex.org/C107365816","wikidata":"https://www.wikidata.org/wiki/Q114817","display_name":"Surface roughness","level":2,"score":0.7250248789787292},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.649222731590271},{"id":"https://openalex.org/C71039073","wikidata":"https://www.wikidata.org/wiki/Q3439090","display_name":"Surface finish","level":2,"score":0.5733054280281067},{"id":"https://openalex.org/C61696701","wikidata":"https://www.wikidata.org/wiki/Q770766","display_name":"Engineering physics","level":1,"score":0.5051284432411194},{"id":"https://openalex.org/C132235601","wikidata":"https://www.wikidata.org/wiki/Q394001","display_name":"Electrical contacts","level":2,"score":0.5028128027915955},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.481635719537735},{"id":"https://openalex.org/C9652623","wikidata":"https://www.wikidata.org/wiki/Q190109","display_name":"Field (mathematics)","level":2,"score":0.433729887008667},{"id":"https://openalex.org/C2776799497","wikidata":"https://www.wikidata.org/wiki/Q484298","display_name":"Surface (topology)","level":2,"score":0.4150155484676361},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.37614187598228455},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.3756161332130432},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.22188881039619446},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.05750298500061035},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:deepblue.lib.umich.edu:2027.42/95929","doi":null,"is_oa":true,"landing_page_url":"https://hdl.handle.net/2027.42/95929","pdf_url":"https://deepblue.lib.umich.edu/bitstreams/184533a3-8f98-486d-896f-8a7382b021a0/download","source":{"id":"https://openalex.org/S4306400393","display_name":"Deep Blue (University of Michigan)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I27837315","host_organization_name":"University of Michigan","host_organization_lineage":["https://openalex.org/I27837315"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Thesis"},{"id":"mag:112989906","doi":null,"is_oa":true,"landing_page_url":"https://hdl.handle.net/2027.42/95929","pdf_url":null,"source":{"id":"https://openalex.org/S4306400393","display_name":"Deep Blue (University of Michigan)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I27837315","host_organization_name":"University of Michigan","host_organization_lineage":["https://openalex.org/I27837315"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Deep Blue (University of Michigan)","raw_type":null}],"best_oa_location":{"id":"pmh:oai:deepblue.lib.umich.edu:2027.42/95929","doi":null,"is_oa":true,"landing_page_url":"https://hdl.handle.net/2027.42/95929","pdf_url":"https://deepblue.lib.umich.edu/bitstreams/184533a3-8f98-486d-896f-8a7382b021a0/download","source":{"id":"https://openalex.org/S4306400393","display_name":"Deep Blue (University of Michigan)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I27837315","host_organization_name":"University of Michigan","host_organization_lineage":["https://openalex.org/I27837315"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Thesis"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W112989906.pdf","grobid_xml":"https://content.openalex.org/works/W112989906.grobid-xml"},"referenced_works_count":102,"referenced_works":["https://openalex.org/W3701817","https://openalex.org/W143881707","https://openalex.org/W188606520","https://openalex.org/W197061469","https://openalex.org/W301739671","https://openalex.org/W644824158","https://openalex.org/W1496995791","https://openalex.org/W1509892751","https://openalex.org/W1512932400","https://openalex.org/W1519988783","https://openalex.org/W1532219419","https://openalex.org/W1562673601","https://openalex.org/W1570929587","https://openalex.org/W1594450126","https://openalex.org/W1641444802","https://openalex.org/W1660928852","https://openalex.org/W1845479914","https://openalex.org/W1967643181","https://openalex.org/W1969286761","https://openalex.org/W1969637438","https://openalex.org/W1974108248","https://openalex.org/W1977688716","https://openalex.org/W1977783978","https://openalex.org/W1978706544","https://openalex.org/W1978793635","https://openalex.org/W1978883004","https://openalex.org/W1979842310","https://openalex.org/W1983503823","https://openalex.org/W1984943849","https://openalex.org/W1984951352","https://openalex.org/W1986850490","https://openalex.org/W1989493170","https://openalex.org/W1993737798","https://openalex.org/W1999480527","https://openalex.org/W1999986354","https://openalex.org/W2003749435","https://openalex.org/W2005836545","https://openalex.org/W2008031017","https://openalex.org/W2009819693","https://openalex.org/W2010872619","https://openalex.org/W2011425495","https://openalex.org/W2013442974","https://openalex.org/W2016338707","https://openalex.org/W2018672445","https://openalex.org/W2019358475","https://openalex.org/W2022097710","https://openalex.org/W2023493434","https://openalex.org/W2024147860","https://openalex.org/W2024722136","https://openalex.org/W2028939820","https://openalex.org/W2036626709","https://openalex.org/W2040362196","https://openalex.org/W2051413340","https://openalex.org/W2052310447","https://openalex.org/W2053119372","https://openalex.org/W2061406698","https://openalex.org/W2063179591","https://openalex.org/W2067297360","https://openalex.org/W2067494883","https://openalex.org/W2068135467","https://openalex.org/W2079806374","https://openalex.org/W2079972989","https://openalex.org/W2080598445","https://openalex.org/W2086103622","https://openalex.org/W2087234471","https://openalex.org/W2091132644","https://openalex.org/W2094963548","https://openalex.org/W2095645662","https://openalex.org/W2096500202","https://openalex.org/W2109982116","https://openalex.org/W2114257358","https://openalex.org/W2116378354","https://openalex.org/W2122480734","https://openalex.org/W2123045158","https://openalex.org/W2129151487","https://openalex.org/W2129686521","https://openalex.org/W2130224543","https://openalex.org/W2133055600","https://openalex.org/W2141757303","https://openalex.org/W2146495825","https://openalex.org/W2148672300","https://openalex.org/W2151489477","https://openalex.org/W2154246823","https://openalex.org/W2155637190","https://openalex.org/W2162506017","https://openalex.org/W2163058104","https://openalex.org/W2164645167","https://openalex.org/W2169048175","https://openalex.org/W2169894780","https://openalex.org/W2170736696","https://openalex.org/W2171324404","https://openalex.org/W2171742305","https://openalex.org/W2172082724","https://openalex.org/W2172247432","https://openalex.org/W2182290389","https://openalex.org/W2184939986","https://openalex.org/W2567582592","https://openalex.org/W2885951206","https://openalex.org/W3013647522","https://openalex.org/W3034603116","https://openalex.org/W3087515752","https://openalex.org/W3216516858"],"related_works":["https://openalex.org/W4417282170","https://openalex.org/W1508897967","https://openalex.org/W2115721883","https://openalex.org/W2950134773","https://openalex.org/W1569942407","https://openalex.org/W2046239987","https://openalex.org/W2050100753","https://openalex.org/W2013604724","https://openalex.org/W2072624618","https://openalex.org/W2776231444"],"abstract_inverted_index":{"Surfaces":[0],"are":[1,101,185,341,346],"never":[2],"perfectly":[3],"flat.":[4],"Because":[5],"of":[6,26,57,74,85,107,148,158,249,286],"the":[7,22,27,61,71,121,131,140,166,191,220,244,250,282,300,310,339],"surface":[8,58,86],"roughness":[9,59],"on":[10,327,338],"a":[11,77,104,155,161,315,328],"microscopic":[12],"scale,":[13],"true":[14],"contact":[15,32,90,133,144,192,223,253],"between":[16],"two":[17],"conductors":[18],"occurs":[19],"only":[20],"at":[21,165],"asperities":[23],"(small":[24],"protrusions)":[25],"contacting":[28],"surfaces,":[29],"leading":[30],"to":[31,37,174,269,314],"resistance,":[33],"an":[34],"important":[35],"issue":[36],"high":[38],"power":[39,43,311],"microwave":[40],"sources,":[41],"pulsed":[42],"systems,":[44],"tribology,":[45],"thin":[46,96,221,251,287],"film":[47,97,222,252,288],"devices,":[48],"integrated":[49],"circuits,":[50],"and":[51,70,95,110,120,125,162,182,201,214,238,284,290,299,304,324,334],"interconnects,":[52],"etc.":[53],"Another":[54],"profound":[55],"effect":[56],"is":[60,115,130,265,273,294],"excessive":[62,262],"local":[63,332],"field":[64,336],"enhancement":[65],"that":[66,147],"triggers":[67],"RF":[68,118,123,297,302],"breakdown,":[69],"rapid":[72],"loss":[73],"superconductivity":[75],"in":[76,210],"superconducting":[78],"cavity.":[79],"This":[80,204,216,275],"thesis":[81,217],"models":[82],"various":[83,211],"effects":[84],"roughness,":[87],"including":[88,177],"electrical":[89],"resistance":[91,134,145,193,224],"for":[92,103,143,190,197,235,247,281],"both":[93,236],"bulk":[94,132,167],"contacts.":[98],"Scaling":[99,344],"laws":[100,231,345],"constructed":[102,196],"large":[105],"range":[106],"resistivity":[108,202],"ratios":[109,200],"aspect":[111,199],"ratios.":[112,203],"Also":[113],"presented":[114],"roughness-induced":[116,295],"enhanced":[117,122,296,301],"heating,":[119,264,298],"electric":[124,303,333],"magnetic":[126,305,335],"fields.":[127,306],"Presented":[128,292],"first":[129],"with":[135,225,318],"dissimilar":[136,178,226],"materials.":[137,179,227],"For":[138],"decades,":[139],"basic":[141],"model":[142],"remains":[146],"Holm\u2019s":[149,172],"a-spot,":[150],"where":[151],"current":[152,256],"flows":[153],"through":[154],"circular":[156],"constriction":[157],"small":[159],"radius":[160],"zero":[163],"thickness":[164],"interface.":[168],"We":[169,241,307],"vastly":[170],"extend":[171],"theory":[173],"higher":[175],"dimensions,":[176],"Both":[180],"Cartesian":[181,239],"cylindrical":[183,237],"channels":[184],"analyzed.":[186],"A":[187],"scaling":[188,205,230],"law":[189,206],"has":[194,207],"been":[195,208,233],"arbitrary":[198,319],"validated":[209],"tests,":[212],"simulations,":[213],"experiments.":[215],"next":[218],"presents":[219],"Simple,":[228],"analytical":[229],"have":[232,242],"developed,":[234],"geometries.":[240],"identified":[243],"optimal":[245],"condition":[246],"minimization":[248],"resistance.":[254],"The":[255,331],"crowding":[257],"effect,":[258],"which":[259],"may":[260,277],"induce":[261],"ohmic":[263],"also":[266,293],"studied.":[267],"Extension":[268],"general":[270],"a-spot":[271],"geometry":[272],"made.":[274],"work":[276],"offer":[278],"useful":[279],"insights":[280],"design":[283],"fabrication":[285],"devices":[289],"components.":[291],"analytically":[308],"compute":[309],"absorption":[312],"due":[313],"hemispherical":[316],"protrusion":[317,340],"permittivity":[320],"\u03b5,":[321],"permeability":[322],"\u03bc":[323],"conductivity":[325],"\u03c3,":[326],"flat":[329],"surface.":[330],"enhancements":[337],"calculated":[342],"analytically.":[343],"derived.":[347]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":2}],"updated_date":"2026-10-14T16:39:01.820549","created_date":"2016-06-24T00:00:00"}
