{"id":506,"date":"2024-07-02T17:49:01","date_gmt":"2024-07-02T09:49:01","guid":{"rendered":"https:\/\/ceramicatijolart.com\/?p=506"},"modified":"2024-07-02T17:49:01","modified_gmt":"2024-07-02T09:49:01","slug":"elektricke-vlastnosti-karbidu-kremika","status":"publish","type":"post","link":"https:\/\/ceramicatijolart.com\/sk\/elektricke-vlastnosti-karbidu-kremika\/","title":{"rendered":"Elektrick\u00e9 vlastnosti karbidu krem\u00edka"},"content":{"rendered":"<p>Karbid krem\u00edka je polovodi\u010dov\u00fd materi\u00e1l, ktor\u00e9ho vlastnosti sa pohybuj\u00fa medzi vlastnos\u0165ami kovov a izolantov. Vlastnosti izolantov z\u00e1visia od faktorov, ako s\u00fa teplota a ne\u010distoty pr\u00edtomn\u00e9 v jeho kry\u0161t\u00e1lovej \u0161trukt\u00fare; pokia\u013e ide o vlastnosti polovodi\u010da, aj tie z\u00e1visia od t\u00fdchto premenn\u00fdch.<\/p>\n<p>Edward Goodrich Acheson prv\u00fdkr\u00e1t vyrobil SiC v roku 1891, ke\u010f sa pok\u00fa\u0161al vyrobi\u0165 umel\u00e9 diamanty pomocou elektrick\u00e9ho pr\u00fadu prech\u00e1dzaj\u00faceho \u00edlom s pou\u017eit\u00edm uhl\u00edkovej ty\u010dinky. V\u00fdsledn\u00fd materi\u00e1l nazval karborund.<\/p>\n<h2>Nap\u00e4tie Odpor<\/h2>\n<p>Karbid krem\u00edka (SiC) je mimoriadne odoln\u00fd polovodi\u010dov\u00fd materi\u00e1l s neuverite\u013en\u00fdmi vlastnos\u0165ami v oblasti elektrickej vodivosti. V\u010faka schopnosti zvl\u00e1dnu\u0165 vy\u0161\u0161ie nap\u00e4tia a pr\u00fady aj pri vy\u0161\u0161\u00edch teplot\u00e1ch ne\u017e krem\u00edk je SiC ide\u00e1lny pre aplik\u00e1cie, ako je napr\u00edklad v\u00fdkonov\u00e1 elektronika. Okrem toho mu \u0161ir\u0161ia \u0161\u00edrka zak\u00e1zan\u00e9ho p\u00e1sma umo\u017e\u0148uje vies\u0165 pr\u00fad pri vy\u0161\u0161\u00edch frekvenci\u00e1ch so zn\u00ed\u017een\u00fdm odporom v porovnan\u00ed s in\u00fdmi polovodi\u010dov\u00fdmi materi\u00e1lmi.<\/p>\n<p>Elektrick\u00e9 vlastnosti SiC z\u00e1visia od jeho zlo\u017eiek a v\u00fdrobn\u00e9ho procesu, pri\u010dom r\u00f4zne pr\u00edsady v\u00fdrazne menia jeho elektrick\u00fd odpor v z\u00e1vislosti od sp\u00f4sobu, ak\u00fdm boli pridan\u00e9 do jeho zlo\u017eenia. Oxidy a nitridy sa napr\u00edklad zara\u010fuj\u00fa medzi pr\u00edsady druhej f\u00e1zy, zatia\u013e \u010do ne\u010distoty ako fosfor alebo dus\u00edk m\u00f4\u017eu p\u00f4sobi\u0165 ako donorov\u00e9 alebo akceptorov\u00e9 ne\u010distoty, ktor\u00e9 zvy\u0161uj\u00fa elektrick\u00fd odpor.<\/p>\n<p>Karbid krem\u00edka sa od ostatn\u00fdch polovodi\u010dov odli\u0161uje t\u00fdm, \u017ee v neupravenom stave p\u00f4sob\u00ed ako elektrick\u00fd izol\u00e1tor. Dopovan\u00edm sa v\u0161ak d\u00e1 premeni\u0165 na materi\u00e1l ved\u00faci elektrick\u00fd pr\u00fad pridan\u00edm \u0161pecifick\u00fdch ne\u010dist\u00f4t, zn\u00e1mych ako dopanty, ako s\u00fa hlin\u00edk, b\u00f3r a g\u00e1lium pre polovodi\u010de typu p alebo dus\u00edk a fosfor pre polovodi\u010de typu n.<\/p>\n<p>Krem\u00edk je v s\u00fa\u010dasnosti dominantn\u00fdm polovodi\u010dom, av\u0161ak jeho schopnosti v oblasti vysokov\u00fdkonnej elektroniky za\u010d\u00ednaj\u00fa by\u0165 spochyb\u0148ovan\u00e9. Karbid krem\u00edka pon\u00faka energeticky \u00faspornej\u0161\u00ed sp\u00f4sob vedenia pr\u00fadu, ke\u010f\u017ee dok\u00e1\u017ee efekt\u00edvnej\u0161ie zvl\u00e1dnu\u0165 vy\u0161\u0161ie teploty a nap\u00e4tia ako krem\u00edk. Okrem toho jeho \u0161ir\u0161ia \u0161\u00edrka zak\u00e1zan\u00e9ho p\u00e1sma umo\u017e\u0148uje dosahova\u0165 vy\u0161\u0161ie r\u00fdchlosti, \u010do prispieva k zmen\u0161eniu rozmerov zariaden\u00ed.<\/p>\n<p>Krem\u00edk m\u00e1 \u0161irok\u00fa \u0161\u00edrku zak\u00e1zan\u00e9ho p\u00e1sma, \u010do znamen\u00e1, \u017ee z neho mo\u017eno vyrobi\u0165 lep\u0161\u00ed vodi\u010d zn\u00ed\u017een\u00edm odporu driftovej vrstvy, \u010do vedie k strat\u00e1m pr\u00fadu pri vypnut\u00ed, \u010d\u00edm sa dosiahnu krat\u0161ie doby sp\u00ednania a zn\u00ed\u017eia sa straty v zariadeniach v\u00fdkonovej elektroniky.<\/p>\n<p>Karbid krem\u00edka sa prirodzene vyskytuje v drahokamoch typu moissanit; pri jeho v\u00fdrobe sa v\u0161ak zvy\u010dajne vyu\u017e\u00edva zlo\u017eit\u00fd proces, ktor\u00fd vyn\u00e1jden\u00fd Edwardom G. Achesonom v roku 1891. Ten spo\u010d\u00edva v zmie\u0161an\u00ed \u010dist\u00e9ho kremi\u010dit\u00e9ho (SiO\u2082) kremenn\u00e9ho piesku s mlet\u00fdm ropn\u00fdm koksom v elektrickej odporovej peci a jeho zahriat\u00ed na vysok\u00fa teplotu, \u010d\u00edm d\u00f4jde k chemickej reakcii ved\u00facej k vzniku karbidu krem\u00edka; dnes sa t\u00e1to technika stala be\u017en\u00fdm sp\u00f4sobom v\u00fdroby priemyseln\u00fdch br\u00fasnych materi\u00e1lov, hutn\u00edckych materi\u00e1lov a \u017eiaruvzdorn\u00fdch materi\u00e1lov.<\/p>\n<h2>Aktu\u00e1lna vodivos\u0165<\/h2>\n<p>Vodivos\u0165 sa vyskytuje v\u0161ade \u2013 od kovov, ako je striebro, cez plasty, ako je guma a gumovo-gumov\u00e9 kompozity, gumu a such\u00e9 drevo, a\u017e po diamanty, av\u0161ak jej charakteristick\u00fdm znakom zost\u00e1va pohyb elektr\u00f3nov. Polovodi\u010de vyu\u017e\u00edvaj\u00fa na zabezpe\u010denie vodivosti svoje vonkaj\u0161ie orbit\u00e1lne elektr\u00f3ny. Karbid krem\u00edka m\u00e1 mimoriadne vysok\u00fa elektrick\u00fa vodivos\u0165 v\u010faka at\u00f3movej \u0161trukt\u00fare, v ktorej valen\u010dn\u00e9 elektr\u00f3ny nenar\u00e1\u017eaj\u00fa na \u017eiadny odpor, ktor\u00fd by br\u00e1nil toku elektr\u00f3nov; v d\u00f4sledku toho pon\u00faka extr\u00e9mne vysok\u00fa elektrick\u00fa vodivos\u0165.<\/p>\n<p>Karbid krem\u00edka (SiC) je mimoriadne odoln\u00e1 chemick\u00e1 zl\u00fa\u010denina pozost\u00e1vaj\u00faca z uhl\u00edka a krem\u00edka s hexagon\u00e1lnou kry\u0161t\u00e1lovou \u0161trukt\u00farou a vlastnos\u0165ami polovodi\u010da s \u0161irokou \u0161\u00edrkou zak\u00e1zan\u00e9ho p\u00e1sma, ktor\u00e1 je zn\u00e1ma hodnotou 3,26 eV v porovnan\u00ed s 1,67 eV u krem\u00edka. SiC je preto v\u00fdnimo\u010dn\u00fdm vodi\u010dom elektriny a v\u010faka tomu aj vynikaj\u00facim materi\u00e1lom na prenos elektriny.<\/p>\n<p>Odolnos\u0165 karbidu krem\u00edka vo\u010di vysok\u00fdm teplot\u00e1m, n\u00edzke \u00farovne \u017eiarenia a schopnos\u0165 odol\u00e1va\u0165 podmienkam vo vesm\u00edre z neho robia atrakt\u00edvny materi\u00e1l pre pou\u017eitie v r\u00f4znych aplik\u00e1ci\u00e1ch. Okrem toho jeho izola\u010dn\u00e9 vlastnosti umo\u017e\u0148uj\u00fa zn\u00ed\u017ei\u0165 rozmery aj hmotnos\u0165 elektronick\u00fdch zariaden\u00ed a z\u00e1rove\u0148 zv\u00fd\u0161i\u0165 ich spo\u013eahlivos\u0165.<\/p>\n<p>Vynikaj\u00faca elektrick\u00e1 vodivos\u0165 karbidu krem\u00edka chr\u00e1ni zariadenia pred vonkaj\u0161\u00edmi vplyvmi, \u010d\u00edm zvy\u0161uje ich \u00fa\u010dinnos\u0165 a z\u00e1rove\u0148 ich chr\u00e1ni pred po\u0161koden\u00edm sp\u00f4soben\u00fdm vonkaj\u0161\u00edmi vplyvmi. Okrem toho je v\u010faka svojej odolnosti vo\u010di vysok\u00fdm nap\u00e4tiam vynikaj\u00facim rie\u0161en\u00edm pre aplik\u00e1cie v oblasti prenosu energie, ako s\u00fa napr\u00edklad nadzemn\u00e9 elektrick\u00e9 vedenia.<\/p>\n<p>Karbid krem\u00edka je mo\u017en\u00e9 vyr\u00e1ba\u0165 v r\u00f4znych polytypoch s odli\u0161n\u00fdmi vlastnos\u0165ami. Tri z t\u00fdchto polytypov, 3C-SiC, 4H-SiC a 6H-SiC, sa be\u017ene pou\u017e\u00edvaj\u00fa v elektronike v\u010faka svojej vynikaj\u00facej pohyblivosti elektr\u00f3nov a teplotnej odolnosti; 4H-SiC m\u00e1 kubick\u00fa kry\u0161t\u00e1lov\u00fa \u0161trukt\u00faru, zatia\u013e \u010do 3C-SiC vykazuje tetraedr\u00e1lnu kry\u0161t\u00e1lov\u00fa \u0161trukt\u00faru.<\/p>\n<p>Polytypy SiC maj\u00fa podobn\u00fa vn\u00fatorn\u00fa mikrostrukt\u00faru, av\u0161ak ich at\u00f3my s\u00fa usporiadan\u00e9 odli\u0161ne, \u010do vedie k r\u00f4znym elektrick\u00fdm vlastnostiam. Tento rozdiel vypl\u00fdva z odli\u0161nost\u00ed v koordin\u00e1cii at\u00f3mov uhl\u00edka a krem\u00edka v kry\u0161t\u00e1lovej mrie\u017eke; tento jav sa naz\u00fdva polytypizmus (viac inform\u00e1ci\u00ed o kry\u0161talografii a polytypizme SiC n\u00e1jdete v pr\u00e1ci Powell et al. 1993).<\/p>\n<p>Elektrick\u00e1 vodivos\u0165 karbidu krem\u00edka sa men\u00ed priamo \u00famerne s d\u013a\u017ekou a je nepriamo \u00famern\u00e1 prierezu; meria sa v siemensoch na meter (S\/m). Na v\u00fdpo\u010det vodivosti akejko\u013evek vzorky budete potrebova\u0165 merania nap\u00e4tia, pr\u00fadu a d\u013a\u017eky, pri\u010dom ako vod\u00edtko posl\u00fa\u017ei Ohmov z\u00e1kon: VIR = IjR = IR\/R a S\/I<\/p>\n<h2>Odolnos\u0165 vo\u010di teplu<\/h2>\n<p>Karbid krem\u00edka, be\u017enej\u0161ie zn\u00e1my ako karborund, je neoxidov\u00e1 keramika s jedine\u010dn\u00fdmi fyzik\u00e1lnymi vlastnos\u0165ami, v\u010faka ktor\u00fdm nach\u00e1dza uplatnenie v priemyseln\u00fdch odvetviach, kde sa vy\u017eaduje vysok\u00e1 tepeln\u00e1 odolnos\u0165 a odolnos\u0165 vo\u010di tepeln\u00fdm \u0161okom. V\u010faka svojej v\u00fdnimo\u010dnej pevnosti, tvrdosti, tepelnej stabilite a odolnosti proti opotrebeniu sa u\u017e dlho pou\u017e\u00edva v produktoch, ako s\u00fa br\u00fasne zrn\u00e1, diely odoln\u00e9 proti opotrebeniu, \u017eiaruvzdorn\u00e9 materi\u00e1ly a keramika; okrem toho pon\u00faka oproti krem\u00edkov\u00fdm polovodi\u010dom mno\u017estvo v\u00fdhod, vr\u00e1tane vy\u0161\u0161ieho prierazn\u00e9ho nap\u00e4tia a vynikaj\u00facej tepelnej vodivosti.<\/p>\n<p>SiC je charakterizovan\u00fd svoj\u00edm chemick\u00fdm zlo\u017een\u00edm, ktor\u00e9 ovplyv\u0148uje jeho elektrick\u00e9 a tepeln\u00e9 vlastnosti. Na prv\u00fd poh\u013ead sa SiC spr\u00e1va ako elektrick\u00fd izolant; pri starostlivom dopovan\u00ed (kontrolovanom vn\u00e1\u0161an\u00ed ne\u010dist\u00f4t) sa v\u0161ak d\u00e1 vyu\u017ei\u0165 jeho polovodi\u010dov\u00e1 vlastnos\u0165. Dopovanie sa be\u017ene vyu\u017e\u00edva pri v\u00fdrobe polovodi\u010dov, preto\u017ee umo\u017e\u0148uje vznik vo\u013en\u00fdch nosi\u010dov n\u00e1boja (elektr\u00f3nov alebo dier), ktor\u00e9 zvy\u0161uj\u00fa vodivos\u0165 materi\u00e1lu.<\/p>\n<p>Karbid krem\u00edka v \u010distej forme m\u00e1 hustotu pribli\u017ene 3 kg\/cm\u00b3. Jeho mern\u00e1 tepeln\u00e1 kapacita 750 J\/kg*K nazna\u010duje, \u017ee na zv\u00fd\u0161enie teploty o jeden kelvin je potrebn\u00e9 zna\u010dn\u00e9 mno\u017estvo energie; v\u010faka tomu je SiC vynikaj\u00facou vo\u013ebou pre pou\u017eitie v prostrediach, ktor\u00e9 vy\u017eaduj\u00fa tepeln\u00fa stabilitu.<\/p>\n<p>\u0160peci\u00e1lna mrie\u017ekov\u00e1 \u0161trukt\u00fara karbidu krem\u00edka pozost\u00e1va z kovalentn\u00fdch v\u00e4zieb medzi at\u00f3mami uhl\u00edka usporiadan\u00fdmi do tetra\u00e9drov a at\u00f3mami krem\u00edka, \u010d\u00edm vznik\u00e1 hust\u00e1 mrie\u017eka. T\u00e1to hust\u00e1 mrie\u017eka mu dod\u00e1va v\u00fdnimo\u010dn\u00fa pevnos\u0165, tvrdos\u0165, n\u00edzku zmr\u0161\u0165ovate\u013enos\u0165 pri spekan\u00ed, chemick\u00fa inertnos\u0165 a tepeln\u00fa roz\u0165a\u017enos\u0165; odolnos\u0165 vo\u010di oxid\u00e1cii je \u010falej zv\u00fd\u0161en\u00e1 v\u010faka vysokej tepelnej vodivosti a vy\u0161\u0161\u00edm at\u00f3mov\u00fdm \u010d\u00edslam.<\/p>\n<p>Spe\u010dovanie karbidu krem\u00edka prebieha podobn\u00fdm procesom ako v pr\u00edpade karbidu volfr\u00e1mu, pri\u010dom sa v peci kombinuj\u00fa uhl\u00edkov\u00fd a dus\u00edkov\u00fd plyn na ohrev zospodu aj zhora, \u010d\u00edm vznik\u00e1 metastabiln\u00e1 zmes karbidu a oxidu kremi\u010dit\u00e9ho, ktor\u00e1 n\u00e1sledne prech\u00e1dza tlakov\u00fdm spracovan\u00edm a r\u00fdchlym ochladen\u00edm, ne\u017e sa z nej stane kone\u010dn\u00fd produkt. Spolo\u010dnos\u0165 Littelfuse vyr\u00e1ba \u010dipy z karbidu krem\u00edka ur\u010den\u00e9 na pou\u017eitie v r\u00f4znych elektronick\u00fdch zariadeniach, ktor\u00e9 vyu\u017e\u00edvaj\u00fa ich vynikaj\u00face prierazn\u00e9 nap\u00e4tie, ni\u017e\u0161\u00ed odpor na jednotku plochy a v\u00e4\u010d\u0161iu odolnos\u0165 vo\u010di vysok\u00fdm teplot\u00e1m a nap\u00e4tiam.<\/p>\n<h2>Tepeln\u00e1 vodivos\u0165<\/h2>\n<p>Karbid krem\u00edka (\u010dasto skr\u00e1tene ozna\u010dovan\u00fd ako \u201cSiC\u201d) je synteticky vyr\u00e1ban\u00e1 kry\u0161talick\u00e1 zl\u00fa\u010denina krem\u00edka a uhl\u00edka s chemick\u00fdm vzorcom SiC. V\u010faka svojim vlastnostiam, ktor\u00e9 ho charakterizuj\u00fa ako keramick\u00fd aj polovodi\u010dov\u00fd materi\u00e1l, je SiC vhodn\u00fd pre pou\u017eitie v aplik\u00e1ci\u00e1ch s vysok\u00fdm nap\u00e4t\u00edm a teplotami, ako s\u00fa br\u00fasne kot\u00fa\u010de a rezn\u00e9 n\u00e1stroje vy\u017eaduj\u00face vysok\u00fa abraz\u00edvnos\u0165; v\u010faka svojej odolnosti proti opotrebeniu je tie\u017e neocenite\u013en\u00fd v priemyseln\u00fdch prostrediach, napr\u00edklad pri v\u00fdstelk\u00e1ch pec\u00ed, opotrebovate\u013en\u00fdch \u010dastiach \u010derpadiel a raketov\u00fdch motorov, ako aj pri polovodi\u010dov\u00fdch substr\u00e1toch pre sveteln\u00e9 di\u00f3dy (LED).<\/p>\n<p>Objav moissanitu, mimoriadne vz\u00e1cneho pr\u00edrodn\u00e9ho miner\u00e1lu, ktor\u00e9ho autorom bol Edward G. Acheson v roku 1893, in\u0161piroval vznik modernej met\u00f3dy v\u00fdroby karbidu krem\u00edka pou\u017e\u00edvan\u00e9ho v br\u00fasnych, hutn\u00edckych a \u017eiaruvzdorn\u00fdch aplik\u00e1ci\u00e1ch. Acheson vyvinul postup na jeho synt\u00e9zu pomocou kremi\u010dit\u00e9ho piesku redukovan\u00e9ho uhl\u00edkom v elektrickej peci; tento postup sa stal priekopn\u00edckym pr\u00edkladom toho, \u010do sa odvtedy stalo prevl\u00e1daj\u00facou met\u00f3dou.<\/p>\n<p>V\u00fdroba SiC spo\u010d\u00edva v zmie\u0161an\u00ed \u010dist\u00e9ho kremi\u010dit\u00e9ho piesku s uhl\u00edkom vo forme koksu v elektrickej odporovej peci a v prechode elektrick\u00e9ho pr\u00fadu cez jej vodi\u010d, \u010d\u00edm sa vyvol\u00e1 chemick\u00e1 reakcia medzi uhl\u00edkom v kokse a krem\u00edkom v piesku, v d\u00f4sledku \u010doho vznik\u00e1 SiC. Cel\u00fd proces m\u00f4\u017ee trva\u0165 a\u017e nieko\u013eko dn\u00ed, zvy\u010dajne sa v\u0161ak vykon\u00e1va nepretr\u017eite pri teplote 2 700 \u00b0C.<\/p>\n<p>Tepeln\u00e1 vodivos\u0165 karbidu krem\u00edka je dan\u00e1 jednak jeho mrie\u017ekovou \u0161trukt\u00farou, jednak koncentr\u00e1ciou elektr\u00f3nov; jej zlep\u0161enie sa dosahuje pridan\u00edm b\u00f3ru, ktor\u00fd zni\u017euje energiu mrie\u017eky, a dopovan\u00edm bu\u010f dopantmi typu n, alebo typu p s cie\u013eom zmeni\u0165 vodivos\u0165.<\/p>\n<p>SiC m\u00e1 vynikaj\u00face elektrick\u00e9 vlastnosti aj pri ve\u013emi vysok\u00fdch teplot\u00e1ch, vr\u00e1tane vy\u0161\u0161ej odolnosti vo\u010di nap\u00e4tiu ako be\u017en\u00fd krem\u00edk a lep\u0161\u00edch v\u00fdkonov\u00fdch parametrov v syst\u00e9moch vy\u017eaduj\u00facich vysokonap\u00e4\u0165ov\u00e9 komponenty v porovnan\u00ed s nitridom g\u00e1lia. V\u010faka tomu je SiC ide\u00e1lnym materi\u00e1lom pre pou\u017eitie v elektrick\u00fdch vozidl\u00e1ch, kde je potrebn\u00e9 splni\u0165 po\u017eiadavky na vysok\u00e9 nap\u00e4tie.<\/p>","protected":false},"excerpt":{"rendered":"<p>Silicon carbide is a semiconductor material with properties between metals and insulators. The latter depends on factors like temperature and impurities present within its crystal structure; as for the former, electrical properties depend on these variables as well. Edward Goodrich Acheson first created SiC in 1891 while trying to produce artificial diamonds using an electric [&hellip;]<\/p>\n","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":[64],"tags":[],"class_list":["post-506","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/posts\/506","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/comments?post=506"}],"version-history":[{"count":1,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/posts\/506\/revisions"}],"predecessor-version":[{"id":507,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/posts\/506\/revisions\/507"}],"wp:attachment":[{"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/media?parent=506"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/categories?post=506"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ceramicatijolart.com\/sk\/wp-json\/wp\/v2\/tags?post=506"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}