{"id":6079,"date":"2026-10-19T09:48:27","date_gmt":"2026-10-19T09:48:27","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-i-edlisfraedi-hamidreza-hajihoseini\/"},"modified":"2026-10-19T09:48:27","modified_gmt":"2026-10-19T09:48:27","slug":"doktorsvorn-i-edlisfraedi-hamidreza-hajihoseini","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-i-edlisfraedi-hamidreza-hajihoseini\/","title":{"rendered":"Doktorsv\u00f6rn \u00ed e\u00f0lisfr\u00e6\u00f0i &#8211; Hamidreza Hajihoseini"},"content":{"rendered":"<div class=\"field-items\">\n<div class=\"field-item even\" property=\"content:encoded\">\n<p><strong>V\u00f6rninni ver\u00f0ur streymt:\u00a0<\/strong><a href=\"https:\/\/livestream.com\/hi\/hamidrezahajihoseini\">https:\/\/livestream.com\/hi\/hamidrezahajihoseini<\/a><\/p>\n<p><strong>Doktorsefni:<\/strong>\u00a0Hamidreza Hajihoseini<\/p>\n<p><strong>Heiti ritger\u00f0ar:<\/strong>\u00a0H\u00e1aflsp\u00falsu\u00f0 segulsp\u00e6ta: \u00c1hrif \u00e6st\u00e6\u00f0s segulsvi\u00f0s \u00e1 r\u00e6ktunarhra\u00f0a og j\u00f3nunarhlutfall (High Power Impulse Magnetron Sputtering (HiPIMS): The effect of the stationary magnetic field on the deposition rate and ionized flux fraction)<\/p>\n<p><strong>Andm\u00e6lendur: <\/strong>Dr. Peter Kelly, pr\u00f3fessor og stj\u00f3rnandi Surface Engineering Group og yfirma\u00f0ur Advanced Materials and Surface Engineering Research Centre, Manchester Metropolitan University,\u00a0 Bretlandi.<br \/> Dr. Matja\u017e Panjan, fr\u00e6\u00f0ima\u00f0ur vi\u00f0 Jozef Stefan Institute, Ljubljana, Sl\u00f3ven\u00edu<\/p>\n<p><strong>Lei\u00f0beinandi:<\/strong>\u00a0Dr. J\u00f3n T\u00f3mas Gu\u00f0mundsson, pr\u00f3fessor vi\u00f0 Raunv\u00edsindadeild H\u00e1sk\u00f3la \u00cdslands.<\/p>\n<p><strong>Einnig \u00ed doktorsnefnd: <\/strong><br \/> Dr. Daniel Lundin, pr\u00f3fessor vi\u00f0 Plasma och ytbel\u00e4ggningsfysik, Institutionen f\u00f6r fysik, kemi och biologi (IFM), H\u00e1sk\u00f3lanum \u00ed Link\u00f6ping, Sv\u00ed\u00fej\u00f3\u00f0.<br \/> Dr. Snorri \u00deorgeir Ingvarsson, pr\u00f3fessor vi\u00f0 Raunv\u00edsindadeild H\u00e1sk\u00f3la \u00cdslands.<strong><\/strong><\/p>\n<\/p>\n<p><strong>Doktorsv\u00f6rn st\u00fdrir:<\/strong>\u00a0Dr.Oddur Ing\u00f3lfsson, pr\u00f3fessor og deildarforseti Raunv\u00edsindadeildar H\u00e1sk\u00f3la \u00cdslands<\/p>\n<p><strong>\u00c1grip<\/strong><\/p>\n<p>H\u00e1aflsp\u00falsu\u00f0 segulsp\u00e6ta (HiPIMS) er fremur n\u00fdleg a\u00f0fer\u00f0 til a\u00f0 r\u00e6kta \u00feunnar h\u00fa\u00f0ir og gefur \u00fe\u00e9ttar h\u00fa\u00f0ir me\u00f0 mj\u00f6g sl\u00e9tt yfirbor\u00f0. \u00deetta er gert me\u00f0 \u00fev\u00ed a\u00f0 framkalla h\u00e1tt j\u00f3nunarhlutfall sp\u00e6ttra agna. \u00deessi miklu g\u00e6\u00f0i \u00feessara r\u00e6ktu\u00f0u h\u00fa\u00f0a eru \u00e1 kosna\u00f0 r\u00e6ktunarhra\u00f0a, sem hefur \u00ed komi\u00f0 \u00ed veg fyrir v\u00ed\u00f0fe\u00f0ma notkun (HiPIMS) \u00ed i\u00f0na\u00f0i. H\u00e9r eru kynntar ni\u00f0urst\u00f6\u00f0ur tilrauna \u00fear sem \u00e1hrif s\u00edst\u00e6\u00f0s segulsvi\u00f0s \u00e1 r\u00e6ktunarhra\u00f0a, j\u00f3nunarhlutfall, og eiginleika \u00feunnra h\u00fa\u00f0a sem eru r\u00e6kta\u00f0ar me\u00f0 h\u00e1aflsp\u00falsa\u00f0ri segulsp\u00e6tu. Vanad\u00edn, vand\u00edn n\u00edtr\u00ed\u00f0 og nikkel-\u00feunnh\u00fa\u00f0ir eru r\u00e6kta\u00f0ar me\u00f0 h\u00e1aflsp\u00falsa\u00f0ri segulsp\u00e6tu \u00fear sem \u00fdmsum eiginleikum afhle\u00f0slunnar var breytt, \u00fear me\u00f0 tali\u00f0 breytingu \u00e1 styrk hremmisegulsvi\u00f0s, \u00fer\u00fdstingi vinnugassins, spennu sem l\u00f6g\u00f0 er \u00e1 undirlagi\u00f0 og horni milli undirlags og skotmarks. Fyrir hvert \u00feessara tilfella eru eiginleikar h\u00fa\u00f0ar sem r\u00e6kta\u00f0ar eru me\u00f0 h\u00e1flsp\u00falsa\u00f0ri segulsp\u00e6tu bornir saman vi\u00f0 tilsvarandi h\u00fa\u00f0ir sem r\u00e6kta\u00f0ar eru me\u00f0 dc segulsp\u00e6tu vi\u00f0 s\u00f6mu skilyr\u00f0i. Til \u00feess a\u00f0 f\u00e1 \u00feennan samanbur\u00f0 var beitt \u00fdmsum greiningara\u00f0fer\u00f0um til a\u00f0 \u00e1kvar\u00f0a e\u00f0lismassa, hrj\u00fafleika yfirbor\u00f0s,samsetningu h\u00fa\u00f0ar, formger\u00f0, segul-og rafeiginleika r\u00e6kta\u00f0ra h\u00fa\u00f0a. \u00cd s\u00ed\u00f0ari hluta verkefnisins var nota\u00f0 breytilegt segulsvi\u00f0 til a\u00f0 rannsaka kerfisbundi\u00f0 \u00e1hrif segulsvi\u00f0s \u00e1 eiginleika h\u00e1aflsp\u00falsa\u00f0rar segulsp\u00e6tu. Fyrir s\u00e9rhverja formger\u00f0 segulsvi\u00f0sins voru r\u00e6ktunarhra\u00f0i og j\u00f3nunarhlutfall m\u00e6ld fyrir nokkrar sta\u00f0setningar framan vi\u00f0 skotmarki\u00f0 til a\u00f0 f\u00e1 mynd af dreifingu hlutlausra og j\u00f3na\u00f0ra agna \u00ed r\u00faminu. H\u00e9r voru einnig m\u00e6ldur r\u00e6ktunarhra\u00f0i og j\u00f3nunarhlutfall \u00fat til hli\u00f0anna, sams\u00ed\u00f0a skotmarkinu fyrir b\u00e6\u00f0i h\u00e1aflsp\u00falsa\u00f0a og dc segulsp\u00e6tu. \u00deetta var gert til a\u00f0 sko\u00f0a tengsl milli aukins flutnings agna til hli\u00f0anna \u00ed h\u00e1aflsp\u00falsa\u00f0ri segulsp\u00e6tu sem oft er nefnd sem ein \u00e1st\u00e6\u00f0a l\u00e6gri r\u00e6ktunarhra\u00f0a \u00ed h\u00e1aflsp\u00falsa\u00f0ri samanbori\u00f0 vi\u00f0 dc segulsp\u00e6tu.<\/p>\n<p><strong>Um doktorsefni\u00f0<\/strong><\/p>\n<p>Hamidreza Hajihoseini f\u00e6ddist \u00ed Yazd \u00ed \u00cdran 1988. Hann lauk B.Sc. pr\u00f3fi \u00ed rafeindaverkfr\u00e6\u00f0i (2011) og M.Sc. pr\u00f3fi \u00ed h\u00e1lflei\u00f0arat\u00f3lum (2014) \u00ed \u00cdran. Hann h\u00f3f n\u00e1m til doktorspr\u00f3fs \u00ed e\u00f0lisfr\u00e6\u00f0i vi\u00f0 H\u00e1sk\u00f3la \u00cdslands 2016. \u00c1 me\u00f0an \u00e1 doktorsn\u00e1minu hefur sta\u00f0i\u00f0 hefur hann birt n\u00edu ritr\u00fdndar greinar og a\u00f0 auki flutt fj\u00f6lda fyrirlestra og kynnt veggspj\u00f6ld \u00e1 al\u00fej\u00f3\u00f0legum r\u00e1\u00f0stefnum. Hamidreza hlaut Erasmus+ styrki til skiptin\u00e1ms 2017 og 2018, til ranns\u00f3kna vi\u00f0 Konunglega t\u00e6knih\u00e1sk\u00f3lann \u00ed Stokkh\u00f3lmi og Universit\u00e9 Paris-Sud \u00ed Orsay, Frakklandi. Hann b\u00fdr \u00ed Reykjav\u00edk me\u00f0 eiginkonu sinni Sahar Rahpeyma.<\/p>\n<\/div><\/div>","protected":false},"featured_media":1778,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_phd_date_start":"2020-05-11T13:00:00+00:00","_phd_date_end":"2020-05-11T15:00:00+00:00","_phd_location":"A\u00f0albygging H\u00e1t\u00ed\u00f0arsalur","_phd_admission":"Fj\u00f6ldatakm\u00f6rkun: Einungis 45 manns geta veri\u00f0 \u00ed salnum \u00e1 me\u00f0an dokorsv\u00f6rninni stendur","_phd_thesis_title":"H\u00e1aflsp\u00falsu\u00f0 segulsp\u00e6ta: \u00c1hrif \u00e6st\u00e6\u00f0s segulsvi\u00f0s \u00e1 r\u00e6ktunarhra\u00f0a og j\u00f3nunarhlutfall (High Power Impulse Magnetron Sputtering (HiPIMS): The effect of the stationary magnetic field on the deposition rate and ionized flux fraction)","_phd_source_url":"https:\/\/gamli.hi.is\/vidburdir\/doktorsvorn_i_edlisfraedi_hamidreza_hajihoseini","_phd_source_node_id":"339123","_phd_source_type":"vidburdir","_phd_member_id":452,"footnotes":""},"phd_school":[101,93],"phd_discipline":[105],"class_list":["post-6079","phd_defence","type-phd_defence","status-publish","has-post-thumbnail","hentry","phd_school-raunvisindadeild","phd_school-verkfraedi-og-natturuvisindasvid","phd_discipline-phd-i-edlisfraedi"],"_links":{"self":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6079","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence"}],"about":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/types\/phd_defence"}],"version-history":[{"count":0,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6079\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media\/1778"}],"wp:attachment":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media?parent=6079"}],"wp:term":[{"taxonomy":"phd_school","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_school?post=6079"},{"taxonomy":"phd_discipline","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_discipline?post=6079"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}