Hlin\u00edk je tvrd\u00fd, pru\u017en\u00fd materi\u00e1l, ktor\u00fd je vysoko odoln\u00fd vo\u010di kor\u00f3zii a oderu. Tento biely pr\u00e1\u0161ok, ktor\u00fd sa vyr\u00e1ba Bayerov\u00fdm procesom z rudy bauxitu, svoj\u00edm vzh\u013eadom pripom\u00edna kuchynsk\u00fa so\u013e alebo zrnit\u00fd cukor.<\/p>\n
Termoplasty vystu\u017een\u00e9 vl\u00e1knami sa m\u00f4\u017eu formova\u0165 do r\u00f4znych materi\u00e1lov pomocou r\u00f4znych aglomera\u010dn\u00fdch techn\u00edk a met\u00f3d tepeln\u00e9ho spracovania, pri\u010dom medzi ich vlastnosti patr\u00ed vysok\u00e1 pevnos\u0165, dobr\u00e1 h\u00fa\u017eevnatos\u0165 a n\u00edzka elektrick\u00e1 vodivos\u0165.<\/p>\n
Hlin\u00edk s vysokou \u010distotou je nevyhnutn\u00fd pri v\u00fdrobe mnoh\u00fdch r\u00f4znych v\u00fdrobkov. Jeho vlastnosti mu umo\u017e\u0148uj\u00fa odol\u00e1va\u0165 koroz\u00edvnemu prostrediu a z\u00e1rove\u0148 odol\u00e1va\u0165 abr\u00e1zii, \u010d\u00edm sa zni\u017euje opotrebovanie komponentov. Okrem toho je tento materi\u00e1l netoxick\u00fd, recyklovate\u013en\u00fd a vyhovuje pr\u00edsnej\u0161\u00edm environment\u00e1lnym norm\u00e1m; jeho ochrann\u00e9 vlastnosti navy\u0161e prekon\u00e1vaj\u00fa toxick\u00e9 kovov\u00e9 pl\u00e1ty, ako je kadmium a nikel, pri\u010dom st\u00e1le poskytuje rovnak\u00fa ochranu.<\/p>\n
Oxid hlinit\u00fd mo\u017eno n\u00e1js\u0165 v stavebn\u00fdch materi\u00e1loch, lepidl\u00e1ch a tesniacich materi\u00e1loch ako pr\u00edsadu, ktor\u00e1 zvy\u0161uje pevnos\u0165 a odolnos\u0165, alebo v hadiciach\/tesneniach na zv\u00fd\u0161enie odolnosti proti oderu. V\u00fdrobcovia gumy ho vyu\u017e\u00edvaj\u00fa ako spev\u0148uj\u00faci plniaci materi\u00e1l, ktor\u00fd zvy\u0161uje pevnos\u0165 v \u0165ahu aj pru\u017enos\u0165; v\u00fdrobcovia farieb\/n\u00e1terov ho pou\u017e\u00edvaj\u00fa na zv\u00fd\u0161enie odolnosti proti po\u0161kriabaniu a oderu.<\/p>\n
Vysoko\u010dist\u00fd oxid hlinit\u00fd (HPA) sa pou\u017e\u00edva ako z\u00e1klad syntetick\u00e9ho zaf\u00edru, z ktor\u00e9ho sa vyr\u00e1baj\u00fa obrazovky smartf\u00f3nov a pr\u00e9miov\u00e9 cifern\u00edky hodiniek, a to v\u010faka jeho pevnosti, tvrdosti, chemickej stabilite a schopnosti prep\u00fa\u0161\u0165a\u0165 UV, vidite\u013en\u00e9 a infra\u010derven\u00e9 svetlo. HPA zohr\u00e1va v\u00fdznamn\u00fa \u00falohu aj v technickej keramike, ktor\u00e1 pon\u00faka zv\u00fd\u0161en\u00fa odolnos\u0165 proti opotrebovaniu a tepeln\u00fa stabilitu - k\u013e\u00fa\u010dov\u00e9 vlastnosti potrebn\u00e9 pre tieto aplik\u00e1cie.<\/p>\n
Oxid hlinit\u00fd sa pou\u017e\u00edva v mnoh\u00fdch elektrick\u00fdch a elektronick\u00fdch s\u00fa\u010diastkach, ktor\u00e9 si vy\u017eaduj\u00fa hrub\u00e9 kovov\u00e9 povlaky s dobrou chemickou a plazmovou odolnos\u0165ou, dielektrickou pevnos\u0165ou pre vysokonap\u00e4\u0165ov\u00e9 aplik\u00e1cie, ako aj ako zlo\u017eka technickej keramiky alebo pokro\u010dilej\/technickej keramiky.<\/p>\n
Ro\u010dne sa na svete vyrob\u00ed pribli\u017ene 115 mili\u00f3nov ton oxidu hlinit\u00e9ho, pri\u010dom 90% sa pou\u017e\u00edva na v\u00fdrobu kovov\u00e9ho hlin\u00edka. Zna\u010dn\u00e9 mno\u017estvo sa vyu\u017e\u00edva aj ako s\u00fa\u010das\u0165 \u017eiaruvzdorn\u00fdch materi\u00e1lov, keramiky a le\u0161tiacich a br\u00fasnych aplik\u00e1ci\u00ed, ako aj ako spojivo a spoma\u013eova\u010d horenia.<\/p>\n
Bauxitov\u00e1 ruda je prim\u00e1rnym zdrojom v\u00fdroby oxidu hlinit\u00e9ho, ktor\u00fd sa \u0165a\u017e\u00ed zo zeme a rafinuje na v\u00fdrobu rafinovan\u00e9ho oxidu hlinit\u00e9ho na prepravu do hlinik\u00e1rn\u00ed na v\u00fdrobu kovov\u00e9ho hlin\u00edka elektrol\u00fdzou. Zvy\u0161n\u00fd oxid hlinit\u00fd sa potom kalcinuje na v\u00fdrobu keramiky - izol\u00e1tory zapa\u013eovac\u00edch svie\u010dok, zubn\u00e9 implant\u00e1ty, laborat\u00f3rne v\u00fdrobky a zrnitos\u0165 br\u00fasneho papiera - v\u0161etky tieto l\u00e1tky pou\u017e\u00edvaj\u00fa t\u00fato univerz\u00e1lnu l\u00e1tku; niektor\u00e9 dokonca odol\u00e1vaj\u00fa extr\u00e9mne vysok\u00fdm teplot\u00e1m, ako aj kor\u00f3zii, kyslosti alebo kysl\u00fdm da\u017e\u010fom! Keramika z oxidu hlinit\u00e9ho vykazuje aj vynikaj\u00facu teplotn\u00fa odolnos\u0165.<\/p>\n
Hoci sa ve\u013ek\u00e1 \u010das\u0165 celosvetovej produkcie oxidu hlinit\u00e9ho pou\u017e\u00edva na tavenie kovov\u00e9ho hlin\u00edka, existuje aj v\u00fdznamn\u00fd trh so \u0161peci\u00e1lnymi druhmi oxidu hlinit\u00e9ho v keramike, ako s\u00fa \u017eiaruvzdorn\u00e9 materi\u00e1ly a izol\u00e1tory, le\u0161tiace podlo\u017eky, br\u00fasiv\u00e1 a le\u0161tiace prostriedky. Okrem toho ho vo svojej kon\u0161trukcii vyu\u017e\u00edvaj\u00fa aj komponenty odoln\u00e9 vo\u010di chemickej plazme ako podporn\u00fd materi\u00e1l katalyz\u00e1torov - a v\u0161etky druhy oxidu hlinit\u00e9ho s\u00fa dostupn\u00e9 na celom svete.<\/p>\n
Vysoko \u010dist\u00fd oxid hlinit\u00fd pon\u00faka vynikaj\u00facu kombin\u00e1ciu mechanick\u00fdch, tepeln\u00fdch a elektrick\u00fdch vlastnost\u00ed, v\u010faka ktorej je vhodn\u00fd na aplik\u00e1cie vy\u017eaduj\u00face vysok\u00fa pevnos\u0165, ako s\u00fa d\u00fdzy a vodiace li\u0161ty proti opotrebovaniu, krvn\u00e9 ventily a puzdr\u00e1 elektrick\u00fdch konektorov. Okrem toho je v\u010faka svojej tepelnej odolnosti a odolnosti proti opotrebovaniu vhodn\u00fd na pou\u017eitie v lek\u00e1rskych implant\u00e1toch a pancieroch.<\/p>\n
V\u00e4\u010d\u0161ina oxidu hlinit\u00e9ho sa z\u00edskava \u0165a\u017ebou bauxitu v povrchov\u00fdch baniach v r\u00f4znych krajin\u00e1ch sveta. Po vy\u0165a\u017een\u00ed sa t\u00e1to ruda rozdrv\u00ed, zmie\u0161a so s\u00f3dou kaustickou v procese chemick\u00e9ho rozkladu a vyseje sa, aby sa z nej vyzr\u00e1\u017eali kry\u0161t\u00e1ly hydroxidu hlinit\u00e9ho zn\u00e1me ako gibbsit; potom sa zahrieva, aby sa z nej vytla\u010dila prebyto\u010dn\u00e1 vlhkos\u0165, \u010d\u00edm sa vytvor\u00ed kalcinovan\u00fd oxid hlinit\u00fd (Al2O3); in\u00e9 druhy sa m\u00f4\u017eu vyr\u00e1ba\u0165 aj chemick\u00fdmi reakciami, ktor\u00e9 zah\u0155\u0148aj\u00fa uhl\u00edk, dus\u00edk, s\u00edru alebo fosfor pri vy\u0161\u0161\u00edch teplot\u00e1ch.<\/p>\n
Oxid hlinit\u00fd je hlavnou zlo\u017ekou pou\u017e\u00edvanou v \u017eiaruvzdorn\u00fdch materi\u00e1loch pre pece. Okrem toho sa oxid hlinit\u00fd nach\u00e1dza aj v mnoh\u00fdch s\u00e9riovo vyr\u00e1ban\u00fdch stroj\u00e1rskych komponentoch vr\u00e1tane strojov\u00fdch pr\u00edpravkov, hriade\u013eov\u00fdch lo\u017e\u00edsk pre pr\u00e1\u010dky a vodn\u00e9 \u010derpadl\u00e1, p\u00f4dopriepustn\u00fdch radli\u010diek na po\u013enohospod\u00e1rskych zariadeniach, prevodov\/vodidiel a vodidiel hodiniek a magnetof\u00f3nov, ako aj rota\u010dn\u00fdch tesnen\u00ed v automobilov\u00fdch motoroch.<\/p>\n
Hlin\u00edk sa m\u00f4\u017ee pochv\u00e1li\u0165 v\u00fdnimo\u010dn\u00fdm pomerom pevnosti a hmotnosti a odol\u00e1va chemick\u00fdm \u00fatokom bez toho, aby podliehal kor\u00f3zii, \u010do z neho rob\u00ed ide\u00e1lny materi\u00e1l na ochrann\u00e9 pancierovanie vojensk\u00fdch vozidiel a kon\u0161trukci\u00ed, ktor\u00fd br\u00e1ni stre\u013ebe z ru\u010dn\u00fdch zbran\u00ed a strel\u00e1m stredn\u00e9ho kalibru, aby sa k nim dostali. Oxid hlinit\u00fd dobre posl\u00fa\u017ei aj v polovodi\u010dov\u00fdch komor\u00e1ch a pr\u00edpravkoch, preto\u017ee odol\u00e1va teplot\u00e1m leptania\/vylu\u010dovania bez toho, aby vylu\u010doval \u010dastice alebo sa stal por\u00e9znym, ako aj vo vojensk\u00fdch aplik\u00e1ci\u00e1ch, ktor\u00e9 proti nemu pou\u017e\u00edvaj\u00fa stre\u013ebu z ru\u010dn\u00fdch zbran\u00ed.<\/p>\n
Hlin\u00edk je neoddelite\u013enou s\u00fa\u010das\u0165ou v\u00fdroby l\u00edtium-i\u00f3nov\u00fdch bat\u00e9ri\u00ed. Pri jeho v\u00fdrobe v\u0161ak vznikaj\u00fa zna\u010dn\u00e9 emisie oxidu uhli\u010dit\u00e9ho, ktor\u00e9 je potrebn\u00e9 zn\u00ed\u017ei\u0165; na tento \u00fa\u010del sa v odvetv\u00ed sk\u00famaj\u00fa sp\u00f4soby, ako pri jeho v\u00fdrobe namiesto uhlia pou\u017e\u00edva\u0165 palivov\u00e9 \u010dl\u00e1nky alebo obnovite\u013en\u00e9 zdroje energie - toto \u00fasilie vyv\u00edjaj\u00fa niektor\u00ed v\u00fdrobcovia, ktor\u00ed sa sna\u017eia emisie e\u0161te viac zn\u00ed\u017ei\u0165.<\/p>\n
Oxid hlinit\u00fd je inertn\u00fd priemyseln\u00fd keramick\u00fd materi\u00e1l bez z\u00e1pachu odvoden\u00fd od oxidu hlinit\u00e9ho (Al2O3), ktor\u00fd sa v pr\u00edrode vyskytuje bu\u010f ako kry\u0161t\u00e1ly korundu, alebo ako hlavn\u00fd zdroj hlin\u00edkovej rudy bauxit. Hlin\u00edk nach\u00e1dza uplatnenie v mnoh\u00fdch oblastiach predl\u017eovania \u017eivota a zlep\u0161ovania spolo\u010dnosti - zohr\u00e1va k\u013e\u00fa\u010dov\u00fa \u00falohu pri v\u00fdrobe mnoh\u00fdch kovov a zliatin pou\u017e\u00edvan\u00fdch ka\u017ed\u00fd de\u0148 - od automobilov a\u017e po lek\u00e1rske implant\u00e1ty.<\/p>\n
Hlin\u00edk sa m\u00f4\u017ee pochv\u00e1li\u0165 mnoh\u00fdmi odli\u0161n\u00fdmi vlastnos\u0165ami, v\u010faka ktor\u00fdm je vhodn\u00fd na pou\u017eitie v r\u00f4znych aplik\u00e1ci\u00e1ch. Jeho extr\u00e9mna tvrdos\u0165 (9 na Mohsovej stupnici) a vysok\u00e1 odolnos\u0165 proti kor\u00f3zii robia z oxidu hlinit\u00e9ho \u017eivotne d\u00f4le\u017eit\u00fa keramiku, zatia\u013e \u010do pon\u00faka vynikaj\u00facu tepeln\u00fa stabilitu, n\u00edzky tangens dielektrick\u00fdch str\u00e1t, n\u00edzky tangens dielektrick\u00fdch str\u00e1t, tuhos\u0165, tepeln\u00fa stabilitu, tepeln\u00fa vodivos\u0165, ako aj vlastnosti extr\u00e9mnych tepeln\u00fdch izolantov, \u010do rob\u00ed oxid hlinit\u00fd ide\u00e1lnym aj pre in\u00e9 odvetvia.<\/p>\n
Pr\u00e1\u0161kov\u00fd oxid hlinit\u00fd sa dod\u00e1va v mnoh\u00fdch r\u00f4znych tvaroch, ve\u013ekostiach a triedach, \u010do umo\u017e\u0148uje jeho spracovanie na keramiku bu\u010f aglomera\u010dn\u00fdmi technikami, alebo met\u00f3dami tepeln\u00e9ho spracovania, ako je kalcin\u00e1cia alebo spekanie. Okrem toho sa keramika m\u00f4\u017ee vyr\u00e1ba\u0165 aj vstrekovan\u00edm, ale tento proces si vy\u017eaduje v\u00e4\u010d\u0161iu kontrolu zo strany technikov, aby sa predi\u0161lo v\u00fdrobe kone\u010dn\u00e9ho v\u00fdrobku, ktor\u00fd m\u00f4\u017ee obsahova\u0165 chyby, ktor\u00e9 sa nedaj\u00fa \u013eahko identifikova\u0165 predt\u00fdm, ako d\u00f4jde k odv\u00e1pneniu a spekaniu.<\/p>\n
Oxid hlinit\u00fd (Al2O3) je modern\u00fd \u017eiaruvzdorn\u00fd materi\u00e1l pou\u017e\u00edvan\u00fd na vysokoteplotn\u00e9 aplik\u00e1cie, ktor\u00fd poskytuje vynikaj\u00facu odolnos\u0165 proti oderu, chemick\u00fa inertnos\u0165 a vlastnosti elektrick\u00e9ho izolantu, v\u010faka ktor\u00fdm je neocenite\u013enou vo\u013ebou v mnoh\u00fdch procesoch. Hlin\u00edk je schopn\u00fd odol\u00e1va\u0165 teplot\u00e1m a\u017e do 1700 stup\u0148ov Celzia, v\u010faka hustote materi\u00e1lu je husto ulo\u017een\u00fd bez medzier a m\u00e1 v\u00fdnimo\u010dne n\u00edzku mieru roz\u0165a\u017enosti, \u010do ho rob\u00ed vhodn\u00fdm na pou\u017eitie pri vysok\u00fdch teplot\u00e1ch.<\/p>\n
Hlin\u00edk sa m\u00f4\u017ee z\u00edskava\u0165 bu\u010f Bayerov\u00fdm procesom, alebo met\u00f3dami v\u00fdroby kalcinovan\u00e9ho \u00edlu a pou\u017e\u00edva sa v keramike, technick\u00fdch \u017eiaruvzdorn\u00fdch v\u00fdrobkoch a v r\u00f4znych priemyseln\u00fdch odvetviach, ktor\u00e9 si vy\u017eaduj\u00fa pou\u017eitie pri vysok\u00fdch teplot\u00e1ch. Existuj\u00fa r\u00f4zne techniky konsolid\u00e1cie a spekania na v\u00fdrobu tohto materi\u00e1lu do r\u00f4znych tvarov a ve\u013ekost\u00ed pre aplik\u00e1cie, ako s\u00fa vysokoteplotn\u00e9 aplik\u00e1cie.<\/p>\n
Oxid hlinit\u00fd 94% je vynikaj\u00faci \u017eiaruvzdorn\u00fd materi\u00e1l s vynikaj\u00facimi mechanick\u00fdmi, tepeln\u00fdmi a elektrick\u00fdmi vlastnos\u0165ami. Vyzna\u010duje sa n\u00edzkou mierou tvorby \u010dast\u00edc, pri\u010dom zost\u00e1va v\u00e1kuovo tesn\u00fd na pou\u017eitie v priechodk\u00e1ch medzi keramikou a kovom, v priechodk\u00e1ch pre r\u00f6ntgenov\u00e9 komponenty a vo vysokonap\u00e4\u0165ov\u00fdch puzdr\u00e1ch.<\/p>\n
Hlin\u00edk je technick\u00e1 keramika s v\u00fdnimo\u010dn\u00fdmi mechanick\u00fdmi vlastnos\u0165ami a vynikaj\u00facimi elektrick\u00fdmi, tepeln\u00fdmi a chemick\u00fdmi vlastnos\u0165ami. M\u00e1 vysok\u00fa pevnos\u0165 v \u0165ahu a tlaku a odol\u00e1va extr\u00e9mnym teplot\u00e1m a tlakom bez toho, aby pod tlakom praskal; okrem toho m\u00e1 vynikaj\u00face elektroizola\u010dn\u00e9 vlastnosti, ktor\u00e9 zabra\u0148uj\u00fa toku pr\u00fadu. Hlin\u00edk nach\u00e1dza uplatnenie v lek\u00e1rskych, obrann\u00fdch a leteck\u00fdch oblastiach.<\/p>\n
V\u010faka svojej tvrdosti m\u00e1 kalen\u00e1 oce\u013e siln\u00fa odolnos\u0165 proti oderu, \u010do ju rob\u00ed odolnou proti kor\u00f3zii a opotrebovaniu v n\u00e1ro\u010dn\u00fdch podmienkach. Okrem toho je inertn\u00e1, \u010do znamen\u00e1, \u017ee neinteraguje s chemik\u00e1liami, ako s\u00fa z\u00e1sady a kyseliny, v\u010faka \u010domu je tento materi\u00e1l \u010dasom odoln\u00fd.<\/p>\n
Vysoko \u010dist\u00fd oxid hlinit\u00fd je ide\u00e1lny na v\u00fdrobu komponentov, ktor\u00e9 si vy\u017eaduj\u00fa maxim\u00e1lnu stabilitu a spo\u013eahlivos\u0165, ako s\u00fa napr\u00edklad laserov\u00e9 komponenty. Po pokryt\u00ed kovom vytv\u00e1ra vysoko odoln\u00e9 elektrick\u00e9 izol\u00e1tory s vynikaj\u00facou odolnos\u0165ou proti oderu, ktor\u00e9 s\u00fa tie\u017e kompatibiln\u00e9 s r\u00f6ntgenov\u00fdm \u017eiaren\u00edm a vhodn\u00e9 pre vysokonap\u00e4\u0165ov\u00e9 puzdr\u00e1. V priemysle sa \u010dasto pou\u017e\u00edva na tak\u00e9 \u00fa\u010dely, ako s\u00fa laserov\u00e9 komponenty, syst\u00e9my na meranie prietoku a senzory, a je tie\u017e vynikaj\u00facou vo\u013ebou pre priechodky z keramiky na kov, priechodky pre r\u00f6ntgenov\u00e9 komponenty a vysokonap\u00e4\u0165ov\u00e9 puzdr\u00e1 - oxid hlinit\u00fd vysokej \u010distoty je ide\u00e1lnou vo\u013ebou materi\u00e1lu!<\/p>\n
Oxid hlinit\u00fd vykazuje vysok\u00fa odrazivos\u0165 od bl\u00edzkeho UV a\u017e po stredn\u00e9 IR spektrum v\u010faka ve\u013emi vysok\u00e9mu koeficientu rozptylu oxidu hlinit\u00e9ho. Jeho odrazivos\u0165 v\u0161ak bohu\u017eia\u013e nemo\u017eno \u00faplne zv\u00fd\u0161i\u0165, preto\u017ee ju ovplyv\u0148uj\u00fa r\u00f4zne faktory - napr\u00edklad pokrytie oxidu hlinit\u00e9ho dielektrick\u00fdm povlakom m\u00f4\u017ee zv\u00fd\u0161i\u0165 jeho bari\u00e9rov\u00e9 vlastnosti a z\u00e1rove\u0148 zv\u00fd\u0161i\u0165 odolnos\u0165 proti oderu a zlep\u0161i\u0165 manipula\u010dn\u00e9 a \u010distiace vlastnosti.<\/p>\n
V\u00fdroba oxidu hlinit\u00e9ho sa za\u010d\u00edna su\u0161en\u00edm rozdrven\u00e9ho a premyt\u00e9ho bauxitu, jeho rozpusten\u00edm so s\u00f3dou kaustickou na vytvorenie suspenzie, filtrovan\u00edm na odstr\u00e1nenie ne\u010dist\u00f4t pred presunom do zr\u00e1\u017eac\u00edch n\u00e1dr\u017e\u00ed na vytvorenie pevn\u00e9ho hydroxidu hlinit\u00e9ho (Al2O3) na \u010fal\u0161ie spracovanie na kovov\u00fd hlin\u00edk prostredn\u00edctvom elektrol\u00fdzy.<\/p>\n
Hlin\u00edk z huty sa vo ve\u013ekej miere pou\u017e\u00edva na v\u00fdrobu keramick\u00fdch v\u00fdrobkov, ako s\u00fa izol\u00e1tory zapa\u013eovac\u00edch svie\u010dok, obaly integrovan\u00fdch obvodov, kochle\u00e1rne implant\u00e1ty, laborat\u00f3rne v\u00fdrobky, br\u00fasne papiere a br\u00fasne kot\u00fa\u010de, ako aj \u017eiaruvzdorn\u00e9 v\u00fdmurovky priemyseln\u00fdch pec\u00ed. Okrem toho sa z tohto materi\u00e1lu vyr\u00e1ba aj pancier na telo.<\/p>","protected":false},"excerpt":{"rendered":"
Hlin\u00edk je tvrd\u00fd, pru\u017en\u00fd materi\u00e1l, ktor\u00fd je vysoko odoln\u00fd vo\u010di kor\u00f3zii a oderu. Vyr\u00e1ba sa Bayerov\u00fdm postupom z [...]<\/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-764","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/posts\/764","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=764"}],"version-history":[{"count":1,"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/posts\/764\/revisions"}],"predecessor-version":[{"id":765,"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/posts\/764\/revisions\/765"}],"wp:attachment":[{"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/media?parent=764"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/categories?post=764"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/artehistoria.net\/sk\/wp-json\/wp\/v2\/tags?post=764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}