{"id":735,"date":"2024-07-15T08:05:37","date_gmt":"2024-07-15T00:05:37","guid":{"rendered":"https:\/\/artehistoria.net\/?p=735"},"modified":"2024-07-15T08:05:38","modified_gmt":"2024-07-15T00:05:38","slug":"alumina-thermal-conductivity-makes-it-ideal-for-high-temperature-environments","status":"publish","type":"post","link":"https:\/\/artehistoria.net\/sk\/tepelna-vodivost-oxidu-hliniteho-je-idealna-pre-prostredie-s-vysokou-teplotou\/","title":{"rendered":"Tepeln\u00e1 vodivos\u0165 oxidu hlinit\u00e9ho je ide\u00e1lna pre prostredia s vysokou teplotou"},"content":{"rendered":"<p>Hlin\u00edkov\u00e1 keramika je v\u0161eobecne zn\u00e1ma svojou vynikaj\u00facou pevnos\u0165ou a odolnos\u0165ou, ale m\u00e1 aj vynikaj\u00face vlastnosti tepelnej vodivosti, \u010do z nej rob\u00ed ide\u00e1lny materi\u00e1l na pou\u017eitie v prostred\u00ed s vysok\u00fdmi teplotami.<\/p>\n<p>Tepeln\u00e1 vodivos\u0165 sa zvy\u0161uje s ve\u013ekos\u0165ou \u010dast\u00edc, pri\u010dom men\u0161ie \u010dastice vytv\u00e1raj\u00fa teplotn\u00e9 gradienty \u00fa\u010dinnej\u0161ie ako v\u00e4\u010d\u0161ie.<\/p>\n<h2>Ide\u00e1lne pre vysokoteplotn\u00e9 aplik\u00e1cie<\/h2>\n<p>Oxid hlinit\u00fd je ide\u00e1lny materi\u00e1l pre vysokoteplotn\u00e9 aplik\u00e1cie v\u010faka svojej vynikaj\u00facej tepelnej stabilite a odolnosti, vyzna\u010duje sa n\u00edzkou roz\u0165a\u017enos\u0165ou a z\u00e1rove\u0148 je schopn\u00fd odol\u00e1va\u0165 vysok\u00fdm teplot\u00e1m bez straty mechanickej pevnosti alebo chemickej inertnosti. \u0160irok\u00e1 \u0161k\u00e1la pou\u017eit\u00ed oxidu hlinit\u00e9ho zah\u0155\u0148a v\u00fdrobu, energetiku, spracovanie materi\u00e1lov, ako aj elektroizola\u010dn\u00e9 aplik\u00e1cie - v\u010faka \u010domu sa st\u00e1va ob\u013e\u00faben\u00fdm materi\u00e1lom v r\u00f4znych oblastiach.<\/p>\n<p>Keramick\u00e9 r\u00farky z oxidu hlinit\u00e9ho m\u00f4\u017eu by\u0165 \u00fa\u010dinn\u00fdm sp\u00f4sobom ochrany a uchov\u00e1vania termo\u010dl\u00e1nkov pou\u017e\u00edvan\u00fdch na meranie extr\u00e9mnych tepl\u00f4t pomocou Seebeckovho efektu. Termo\u010dl\u00e1nky pozost\u00e1vaj\u00fa z dvoch kovov\u00fdch dr\u00f4tov s odli\u0161nou at\u00f3movou \u0161trukt\u00farou a po spojen\u00ed medzi sebou vytv\u00e1raj\u00fa elektrick\u00fd potenci\u00e1l, ktor\u00fd medzi nimi vytv\u00e1ra elektrick\u00fd potenci\u00e1l - tieto termo\u010dl\u00e1nky musia zosta\u0165 chr\u00e1nen\u00e9 pred vysok\u00fdmi teplotami, aby si zachovali presnos\u0165 v n\u00e1ro\u010dn\u00fdch prostrediach. Keramick\u00e1 trubica z oxidu hlinit\u00e9ho to pom\u00e1ha zabezpe\u010di\u0165.<\/p>\n<p>Ke\u010f\u017ee pre optim\u00e1lnu prev\u00e1dzku zariaden\u00ed na v\u00fdrobu elektriny z obnovite\u013en\u00fdch zdrojov energie (CSP) je ve\u013emi d\u00f4le\u017eit\u00e9 vybra\u0165 keramick\u00fd \u017eiaruvzdorn\u00fd materi\u00e1l, ktor\u00fd presne vyhovuje prev\u00e1dzkov\u00fdm podmienkam. Mnoh\u00ed z\u00e1kazn\u00edci sa obracaj\u00fa na oxid hlinit\u00fd kv\u00f4li jeho vysokej teplote tavenia, vysokej pevnosti v \u0165ahu a modulu pru\u017enosti, vynikaj\u00facej odolnosti proti opotrebovaniu a dobrej tepelnej vodivosti - vlastnostiam, ktor\u00e9 pom\u00e1haj\u00fa r\u00fdchlo a efekt\u00edvne pren\u00e1\u0161a\u0165 teplo medzi v\u00fdrobn\u00fdmi procesmi.<\/p>\n<p>\u017diaromateri\u00e1ly na b\u00e1ze oxidu hlinit\u00e9ho m\u00f4\u017eu v\u010faka svojej por\u00e9znej mikro\u0161trukt\u00fare vydr\u017ea\u0165 viacero cyklov nab\u00edjania\/vyb\u00edjania pri sk\u00fa\u0161kach kor\u00f3zie parou bez toho, aby do\u0161lo k ich degrad\u00e1cii. Hlin\u00edk je preto jednou z najob\u013e\u00fabenej\u0161\u00edch mo\u017enost\u00ed pre t\u00fato sk\u00fa\u0161obn\u00fa met\u00f3du.<\/p>\n<p>Boli vykonan\u00e9 \u0161t\u00fadie na ur\u010denie v\u00fdkonnosti r\u00f4znych \u017eiaruvzdorn\u00fdch materi\u00e1lov na b\u00e1ze oxidu hlinit\u00e9ho po\u010das cyklick\u00e9ho testovania kor\u00f3zie vodnou parou. Na porovnanie oboch typov \u017eiaruvzdorn\u00fdch materi\u00e1lov pred a po 500 hodin\u00e1ch vystavenia parnej kor\u00f3zii sa pou\u017eila anal\u00fdza XRD a SEM\/EDX; v\u00fdsledky uk\u00e1zali, \u017ee \u017eiaruvzdorn\u00fd materi\u00e1l na b\u00e1ze oxidu hlinit\u00e9ho bol stabilnej\u0161\u00ed pri vystaven\u00ed vlhkosti a teplot\u00e1m, ktor\u00e9 sa vyskytuj\u00fa v zariadeniach CSP, ako SiC.<\/p>\n<p>D\u00f4vodom je, \u017ee oxid hlinit\u00fd m\u00e1 ni\u017e\u0161iu hustotu ako SiC, \u010do u\u013eah\u010duje jeho tvarovanie a obr\u00e1banie. Okrem toho jeho m\u00e4kk\u00e9 podmienky spekania umo\u017e\u0148uj\u00fa vytv\u00e1ra\u0165 zlo\u017eit\u00e9 tvary pred kone\u010dn\u00fdm spekan\u00edm.<\/p>\n<h2>V\u00fdnimo\u010dn\u00e1 sila<\/h2>\n<p>Hlin\u00edkov\u00e1 keramika je pozoruhodn\u00fd technick\u00fd materi\u00e1l, ktor\u00fd pon\u00faka vynikaj\u00faci v\u00fdkon vo vysokov\u00fdkonn\u00fdch aplik\u00e1ci\u00e1ch. V\u010faka kombin\u00e1cii mechanick\u00fdch, tepeln\u00fdch, elektrick\u00fdch, chemick\u00fdch a optick\u00fdch vlastnost\u00ed vynik\u00e1 kontinu\u00e1lne vl\u00e1kno oxidu hlinit\u00e9ho ako ve\u013emi u\u017eito\u010dn\u00fd zdroj v modernom v\u00fdrobnom a technologickom priemysle. Hlin\u00edkov\u00e9 kontinu\u00e1lne vl\u00e1kno vynik\u00e1 najm\u00e4 v\u00fdnimo\u010dnou rovnov\u00e1hou v\u00fdkonnostn\u00fdch vlastnost\u00ed, ktor\u00e1 ho rob\u00ed jedine\u010dn\u00fdm oproti in\u00fdm typom keramiky.<\/p>\n<p>Oxid hlinit\u00fd vynik\u00e1 ako v\u00fdnimo\u010dn\u00fd materi\u00e1l v\u010faka svojej pevnosti a chemickej odolnosti, v\u010faka \u010domu je vhodn\u00fd do n\u00e1ro\u010dn\u00fdch prostred\u00ed, ako s\u00fa \u010dasti motorov alebo tepeln\u00e9 \u0161t\u00edty. Okrem toho je v\u010faka svojej vynikaj\u00facej mechanickej pevnosti a obrobite\u013enosti vhodn\u00fd na kon\u0161truk\u010dn\u00e9 s\u00fa\u010dasti, ako s\u00fa \u010dasti motorov alebo tepeln\u00e9 \u0161t\u00edty, a v\u010faka svojej pevnosti v \u0165ahu a tlaku je vhodn\u00fd na aplik\u00e1cie zah\u0155\u0148aj\u00face odolnos\u0165 proti opotrebovaniu, ako s\u00fa oblo\u017eenia procesn\u00fdch zariaden\u00ed odoln\u00e9 proti er\u00f3zii.<\/p>\n<p>Tepeln\u00e1 vodivos\u0165 keramiky z oxidu hlinit\u00e9ho je \u010fal\u0161ou v\u00fdznamnou v\u00fdhodou. Tepeln\u00e1 vodivos\u0165 medi je 385 W\/mK, zatia\u013e \u010do tepeln\u00e1 vodivos\u0165 hlin\u00edka sa pohybuje v rozmedz\u00ed 150 - 185 W\/mK; v porovnan\u00ed s t\u00fdm korundov\u00e1 keramika oba materi\u00e1ly v\u00fdrazne prekon\u00e1va v\u010faka zlep\u0161eniu mikro\u0161trukt\u00fary a p\u00f3rovitosti materi\u00e1lu, ktor\u00e9 zni\u017euj\u00fa potrebu energie na chladenie.<\/p>\n<p>Tepeln\u00e1 vodivos\u0165 keramick\u00e9ho oxidu hlinit\u00e9ho z neho rob\u00ed fantastick\u00fa vo\u013ebu pre elektrick\u00fa izol\u00e1ciu. Na rozdiel od uhl\u00edkov\u00fdch vl\u00e1kien, ktor\u00e9 maj\u00fa ve\u013ek\u00fa vodivos\u0165, ale m\u00f4\u017eu sa \u013eahko po\u0161kodi\u0165 extr\u00e9mnymi pr\u00fadmi, odolnos\u0165 korundovej keramiky vo\u010di elektromagnetick\u00e9mu ru\u0161eniu z nej rob\u00ed ide\u00e1lnu vo\u013ebu materi\u00e1lu pre aplik\u00e1cie zah\u0155\u0148aj\u00face elektromagnetick\u00e9 \u017eiarenie, ako s\u00fa jadrov\u00e9 elektr\u00e1rne alebo elektronika a telekomunik\u00e1cie.<\/p>\n<p>Hlin\u00edk vynik\u00e1 vynikaj\u00facimi elektrick\u00fdmi vlastnos\u0165ami, ako aj v\u00fdnimo\u010dnou chemickou stabilitou a odolnos\u0165ou proti kor\u00f3zii, v\u010faka \u010domu je ide\u00e1lny do n\u00e1ro\u010dn\u00fdch priemyseln\u00fdch a laborat\u00f3rnych podmienok, v ktor\u00fdch je vystaven\u00fd r\u00f4znym chemik\u00e1li\u00e1m. Hlin\u00edk odol\u00e1va vysok\u00fdm teplot\u00e1m, ako aj agres\u00edvnym l\u00e1tkam, ako s\u00fa siln\u00e9 kyseliny a z\u00e1sady, bez toho, aby do\u0161lo k jeho degrad\u00e1cii.<\/p>\n<p>Aj napriek v\u00fdnimo\u010dn\u00e9mu v\u00fdkonu je oxid hlinit\u00fd st\u00e1le cenovo v\u00fdhodnej\u0161\u00ed ako modern\u00e9 materi\u00e1ly, ako s\u00fa uhl\u00edkov\u00e9 alebo sklenen\u00e9 vl\u00e1kna. In\u017einieri a v\u00fdrobcovia by mali pri v\u00fdbere vhodn\u00e9ho materi\u00e1lu pre vysoko v\u00fdkonn\u00e9 aplik\u00e1cie starostlivo zv\u00e1\u017ei\u0165 teplotn\u00e9 podmienky a \u00farove\u0148 \u010distoty; v\u00fdber z\u00e1vis\u00ed len od t\u00fdchto prvkov.<\/p>\n<h2>V\u0161estrannos\u0165<\/h2>\n<p>Oxid hlinit\u00fd (zn\u00e1my aj ako oxid hlinit\u00fd) je nenahradite\u013en\u00fd keramick\u00fd materi\u00e1l pou\u017e\u00edvan\u00fd v r\u00f4znych priemyseln\u00fdch procesoch, od v\u00fdmenn\u00edkov tepla a n\u00e1bytku do pec\u00ed a\u017e po v\u00fdmenn\u00edky tepla a chemick\u00e9 reaktory. V\u010faka svojej vynikaj\u00facej tepelnej stabilite, mechanickej pevnosti, chemickej inertnosti a elektroizola\u010dn\u00fdm vlastnostiam s\u00fa hlin\u00edkov\u00e9 ty\u010de neoddelite\u013enou s\u00fa\u010das\u0165ou mnoh\u00fdch vysokoteplotn\u00fdch aplik\u00e1ci\u00ed a zariaden\u00ed - od v\u00fdmenn\u00edkov tepla a reaktorov a\u017e po n\u00e1bytkov\u00e9 syst\u00e9my a v\u00fdmenn\u00edky tepla.<\/p>\n<p>Tepeln\u00fa vodivos\u0165 oxidu hlinit\u00e9ho ur\u010duje jeho hustota a mern\u00e1 tepeln\u00e1 kapacita, ktor\u00e9 z\u00e1visia od teploty, ako aj od mikro\u0161trukt\u00fary a p\u00f3rovitosti materi\u00e1lu. Ni\u017e\u0161ie hodnoty frak\u010dn\u00e9ho podielu f\u00e1z a p\u00f3rovitosti ved\u00fa k vy\u0161\u0161\u00edm tepeln\u00fdm vodivostiam medzi izbovou teplotou a 900 stup\u0148ami C.<\/p>\n<p>T\u00e1to \u00fa\u017easn\u00e1 schopnos\u0165 odol\u00e1va\u0165 vysok\u00fdm teplot\u00e1m umo\u017e\u0148uje v\u00fdrobkom z oxidu hlinit\u00e9ho odol\u00e1va\u0165 extr\u00e9mnym podmienkam bez toho, aby sa deformovali alebo zr\u00fatili pri extr\u00e9mnom nam\u00e1han\u00ed, \u010do zaru\u010duje spo\u013eahliv\u00fd v\u00fdkon bez n\u00e1kladn\u00fdch prestojov sp\u00f4soben\u00fdch neo\u010dak\u00e1van\u00fdmi poruchami materi\u00e1lu.<\/p>\n<p>Vysok\u00fd obsah oxidu hlinit\u00e9ho dod\u00e1va t\u00fdmto \u017eiaruvzdorn\u00fdm materi\u00e1lom v\u00fdnimo\u010dn\u00fa odolnos\u0165 proti kor\u00f3zii, \u010do im pom\u00e1ha zachova\u0165 si \u0161truktur\u00e1lnu integritu aj pri vystaven\u00ed kysl\u00fdm a \u017eierav\u00fdm roztokom, procesom tavenia kovov alebo v\u00fdrobe trosky, ktor\u00e9 s\u00fa be\u017en\u00fdmi s\u00fa\u010das\u0165ami v priemyseln\u00fdch v\u00fdrobn\u00fdch prostrediach.<\/p>\n<p>Hlin\u00edk m\u00e1 v\u00fdnimo\u010dn\u00e9 tepeln\u00e9 vlastnosti, ako aj ve\u013ek\u00fa odolnos\u0165 proti oderu a po\u0161kodeniu n\u00e1razom, v\u010faka \u010domu je vhodn\u00fd na mnoh\u00e9 vysoko v\u00fdkonn\u00e9 priemyseln\u00e9 aplik\u00e1cie vr\u00e1tane sp\u00e1jkovania na vytvorenie vysokopevnostn\u00fdch spojov v leteck\u00fdch komponentoch a elektronick\u00fdch zariadeniach, izol\u00e1torov vo v\u00e1kuov\u00fdch \u010derpadl\u00e1ch, pi\u0161to\u013eov\u00fdch zost\u00e1v v r\u00f6ntgenov\u00fdch trubiciach, elektr\u00f3nov\u00fdch mikroskopoch at\u010f.<\/p>\n<p>Oxid ber\u00fdlia pon\u00faka podobn\u00fa tepeln\u00fa vodivos\u0165, ale vy\u017eaduje si n\u00e1kladn\u00e9 spracovanie v dus\u00edkovej peci, zatia\u013e \u010do oxid hlinit\u00fd pon\u00faka cenovo dostupnej\u0161ie a pou\u017e\u00edvate\u013esky pr\u00edvetivej\u0161ie alternat\u00edvy, ako je jeho vynikaj\u00faca l\u00e1mavos\u0165 a trvanlivos\u0165 v porovnan\u00ed s keramick\u00fdmi materi\u00e1lmi, ako s\u00fa sklenen\u00e9 vl\u00e1kna. Okrem toho sa sklenen\u00e9 vl\u00e1kno m\u00f4\u017ee v podmienkach extr\u00e9mnych tepl\u00f4t znehodnoti\u0165, zatia\u013e \u010do v pr\u00edpade oxidu hlinit\u00e9ho sa tak nestane.<\/p>\n<h2>Prisp\u00f4sobenie<\/h2>\n<p>Oxid hlinit\u00fd m\u00e1 nielen vynikaj\u00facu tepeln\u00fa vodivos\u0165, ale aj vynikaj\u00facu mechanick\u00fa pevnos\u0165, v\u010faka ktorej je vynikaj\u00facou vo\u013ebou materi\u00e1lu pre vysokoteplotn\u00e9 aplik\u00e1cie, ale jeho mechanick\u00e1 tvrdos\u0165 sa vyrovn\u00e1 tvrdosti karbidu volfr\u00e1mu aj ocele, \u010do znamen\u00e1, \u017ee dok\u00e1\u017ee odol\u00e1va\u0165 priemyseln\u00fdm procesom bez po\u0161kodenia alebo deform\u00e1cie. Okrem toho je v\u010faka svojej n\u00edzkej hustote menej priepustn\u00fd pre chemik\u00e1lie, \u010do \u010falej zvy\u0161uje jeho odolnos\u0165.<\/p>\n<p>Oxid hlinit\u00fd je preto vynikaj\u00facou vo\u013ebou materi\u00e1lu pre high-tech priemyseln\u00e9 odvetvia, ako je elektronika. \u0160iroko sa vyu\u017e\u00edva v mikroelektronick\u00fdch v\u00fdrobn\u00fdch procesoch ako podkladov\u00fd materi\u00e1l pre tenk\u00e9 a hrub\u00e9 vrstvy pas\u00edvnych komponentov, izol\u00e1torov, tesnen\u00ed a konektorov - a v\u010faka svojej r\u00fdchlej tepelnej vodivosti pom\u00e1ha udr\u017eiava\u0165 komponenty chladn\u00e9!<\/p>\n<p>Oxid hlinit\u00fd je mo\u017en\u00e9 prisp\u00f4sobi\u0165 tak, aby sp\u013a\u0148al presn\u00e9 po\u017eiadavky akejko\u013evek aplik\u00e1cie, pri\u010dom chemick\u00e1 \u010distota a ve\u013ekos\u0165 zrna keramick\u00e9ho oxidu hlinit\u00e9ho s\u00fa presne nastaven\u00e9 tak, aby sa zv\u00fd\u0161il v\u00fdkon v r\u00f4znych prostrediach. Keramika oxidu hlinit\u00e9ho 96% sa \u0161iroko pou\u017e\u00edva na v\u00fdrobu hybridn\u00fdch mikroelektronick\u00fdch obvodov, preto\u017ee pon\u00faka vynikaj\u00face technick\u00e9 vlastnosti vr\u00e1tane elektrickej izol\u00e1cie, mechanickej pevnosti, tepelnej vodivosti a chemickej odolnosti.<\/p>\n<p>Hlin\u00edk sa m\u00f4\u017ee dod\u00e1va\u0165 v r\u00f4znych \u010distot\u00e1ch a tvaroch, aby sp\u013a\u0148al r\u00f4zne po\u017eiadavky r\u00f4znych aplik\u00e1ci\u00ed. Materi\u00e1l AL-30 spolo\u010dnosti ZIRCAR Ceramics pon\u00faka siln\u00fd v\u00fdkon pri teplote 1600 stup\u0148ov s rovnomernou otvorenou p\u00f3rovitos\u0165ou, vysok\u00fa obrobite\u013enos\u0165 a preru\u0161ovan\u00e9 pou\u017eitie a\u017e do teploty 1700 stup\u0148ov bez toho, aby do\u0161lo k strate pevnosti v \u0165ahu.<\/p>\n<p>Keramika z oxidu hlinit\u00e9ho Durox sa \u010dasto vyber\u00e1 do vysokoteplotn\u00fdch prostred\u00ed v\u010faka svojej vynikaj\u00facej odolnosti vo\u010di tepeln\u00fdm \u0161okom a pevnosti v tlaku, ako aj v\u010faka svojej n\u00edzkej tepelnej roz\u0165a\u017enosti, ktor\u00e1 zni\u017euje riziko \u00faniku, je vynikaj\u00facou vo\u013ebou pre mikrovlnn\u00e9 r\u00e1diofrekven\u010dn\u00e9 tranzistory a v\u00fdkonov\u00fa elektroniku.<\/p>\n<p>Bez oh\u013eadu na aplik\u00e1ciu - elektronika, medic\u00edna alebo leteck\u00fd priemysel - spolo\u010dnos\u0165 KINTEK pon\u00faka vysokokvalitn\u00fa keramiku z oxidu hlinit\u00e9ho, ktor\u00e1 zabezpe\u010d\u00ed optim\u00e1lnu funk\u010dnos\u0165 v prostred\u00ed s vysokou teplotou. Kontaktujte n\u00e1s teraz, aby sme pre v\u00e1s mohli za\u010da\u0165 vyv\u00edja\u0165 s\u00fa\u010diastky!<\/p>","protected":false},"excerpt":{"rendered":"<p>Alumina ceramics are widely renowned for their superior strength and resilience, yet also possess excellent thermal conductivity properties, making them [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","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":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","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-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-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-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-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-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"class_list":["post-735","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/posts\/735","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/comments?post=735"}],"version-history":[{"count":1,"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/posts\/735\/revisions"}],"predecessor-version":[{"id":736,"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/posts\/735\/revisions\/736"}],"wp:attachment":[{"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/media?parent=735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/categories?post=735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/tags?post=735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}