![\"Vzorec](\"https:\/\/aluminaceramics.net\/wp-content\/uploads\/2024\/05\/Alumina-Formula.jpg\")
<\/p>","protected":false},"excerpt":{"rendered":"Oxid hlinit\u00fd (Al2O3), ozna\u010dovan\u00fd tak\u00e9 jako oxid hlinit\u00fd, je elektrick\u00fd izolant s vynikaj\u00edc\u00ed chemickou odolnost\u00ed a st\u0159edn\u00ed pevnost\u00ed v tahu a ohybu; jeho hou\u017eevnatost v ohybu v\u0161ak z\u016fst\u00e1v\u00e1 n\u00edzk\u00e1.<\/p>\n
Hlin\u00edk je d\u00edky sv\u00e9mu mno\u017estv\u00ed, n\u00edzk\u00e9 cen\u011b a lep\u0161\u00edm mechanick\u00fdm vlastnostem ne\u017e ostatn\u00ed oxidy nejpou\u017e\u00edvan\u011bj\u0161\u00edm materi\u00e1lem, pokud jde o oxidovou keramiku.<\/p>\n
Oxid hlinit\u00fd (\u010dast\u011bji ozna\u010dovan\u00fd jako oxid hlinit\u00fd nebo alundum) je anorganick\u00e1 chemick\u00e1 slou\u010denina se vzorcem Al2O3, kter\u00e1 se vyzna\u010duje vysokou teplotou t\u00e1n\u00ed a silnou tvrdost\u00ed, b\u00edlou barvou, nerozpustnost\u00ed ve vod\u011b a amfotern\u00edmi vlastnostmi - reaguje jak kysele, tak z\u00e1sadit\u011b - co\u017e z n\u011bj \u010din\u00ed jednu z nejobl\u00edben\u011bj\u0161\u00edch pr\u016fmyslov\u00fdch keramik. Hlin\u00edk se v p\u0159\u00edrod\u011b vyskytuje jako korund, rub\u00edny a saf\u00edry a tak\u00e9 je p\u0159\u00edtomen jako jeho hlavn\u00ed hlin\u00edkov\u00e1 ruda v bauxitu, p\u0159i\u010dem\u017e metody v\u00fdroby zahrnuj\u00ed chemickou dehydrataci hlinitanov\u00e9ho roztoku nebo chemickou dehydrataci hlinitanov\u00e9ho roztoku.<\/p>\n
Hlin\u00edk je \u0161iroce pou\u017e\u00edv\u00e1n k vyzd\u00edv\u00e1n\u00ed vysokoteplotn\u00edch za\u0159\u00edzen\u00ed, jako jsou pece, pece a spalovny, d\u00edky sv\u00fdm tepeln\u00fdm a elektroizola\u010dn\u00edm vlastnostem a odolnosti proti korozi zp\u016fsoben\u00e9 chemik\u00e1liemi pou\u017e\u00edvan\u00fdmi p\u0159i v\u00fdrobn\u00edch procesech. Hlin\u00edk m\u00e1 vynikaj\u00edc\u00ed tepeln\u011b a elektroizola\u010dn\u00ed vlastnosti a tak\u00e9 ochranu proti korozi, co\u017e z n\u011bj \u010din\u00ed ide\u00e1ln\u00ed materi\u00e1l.<\/p>\n
Oxid hlinit\u00fd je jedn\u00edm z nejtvrd\u0161\u00edch um\u011bl\u00fdch materi\u00e1l\u016f, tvrdost\u00ed konkuruje diamantu a odolnost\u00ed proti opot\u0159eben\u00ed se \u0159ad\u00ed na druh\u00e9 m\u00edsto za karbid k\u0159em\u00edku. Krom\u011b toho oxid hlinit\u00fd funguje jako vynikaj\u00edc\u00ed izolant a m\u00e1 n\u00edzk\u00fd koeficient rozta\u017enosti, kter\u00fd zaji\u0161\u0165uje efektivn\u00ed a p\u0159edv\u00eddateln\u00fd p\u0159enos tepla.<\/p>\n
Korund, nejstabiln\u011bj\u0161\u00ed polymorf oxidu hlinit\u00e9ho, je jednou z jeho nejstabiln\u011bj\u0161\u00edch forem. M\u00e1 trigon\u00e1ln\u00ed Bravaisovu m\u0159\u00ed\u017ekovou strukturu, v n\u00ed\u017e ionty kysl\u00edku zauj\u00edmaj\u00ed vrstvy rovnob\u011b\u017en\u00e9 s osou c, zat\u00edmco hlin\u00edk vypl\u0148uje dv\u011b t\u0159etiny oktaedrick\u00fdch mezer. Pom\u011br iont\u016f kysl\u00edku a iont\u016f hlin\u00edku v korundu je 1:2:1.<\/p>\n
Krystalick\u00fd oxid hlinit\u00fd je ekonomick\u00fd materi\u00e1l s n\u00edzkou m\u011brnou hmotnost\u00ed a tvrdost\u00ed, kter\u00fd se obvykle vyskytuje ve form\u011b pr\u00e1\u0161ku o velikosti \u010d\u00e1stic mezi 0,3 a 0,8 mm. Existuj\u00ed dv\u011b formy pr\u00e1\u0161kov\u00e9ho krystalick\u00e9ho oxidu hlinit\u00e9ho; typ A obsahuje hexagon\u00e1ln\u00ed krystaly a m\u00e1 hustotu 4,0, zat\u00edmco typ B obsahuje kubick\u00e9 krystaly s hustotou 3,0; oba typy vykazuj\u00ed dobrou odolnost proti ot\u011bru, p\u0159i\u010dem\u017e typ A \u0159e\u017ee rychleji.<\/p>\n
P\u0159i \u010distot\u011b 94% lze vyr\u00e1b\u011bt oxid hlinit\u00fd, a\u010dkoli v\u011bt\u0161ina komer\u010dn\u00edch aplikac\u00ed obvykle vy\u017eaduje \u010distotu mezi 85%-100%. T\u0159\u00eddy ni\u017e\u0161\u00ed \u010distoty se b\u011b\u017en\u011b pou\u017e\u00edvaj\u00ed v \u017e\u00e1ruvzdorn\u00fdch aplikac\u00edch, zat\u00edmco t\u0159\u00eddy vy\u0161\u0161\u00ed \u010distoty lze nal\u00e9zt v keramice z tvrzen\u00e9ho oxidu hlinit\u00e9ho (ZTA) nebo v monolitick\u00e9 keramice, jako jsou tvrd\u00e9 a hust\u00e9 t\u0159\u00eddy ZTA.<\/p>\n
Oxid hlinit\u00fd (Al2O3), b\u011b\u017en\u011b ozna\u010dovan\u00fd jako oxid hlinit\u00fd, je iontov\u011b-kovalentn\u00ed pevn\u00e1 l\u00e1tka, kter\u00e1 se p\u0159i zat\u00ed\u017een\u00ed nepodvoluje jako kovy a slitiny. N\u00edzk\u00e1 elektrick\u00e1 vodivost a tepeln\u00e1 stabilita \u010din\u00ed z oxidu hlinit\u00e9ho vynikaj\u00edc\u00ed izolant s vynikaj\u00edc\u00ed odolnost\u00ed proti chemick\u00fdm vliv\u016fm a extr\u00e9mn\u00ed tvrdost\u00ed (9 na Mohsov\u011b stupnici). Vzhledem k jeho vysok\u00e9 teplot\u011b t\u00e1n\u00ed nen\u00ed mo\u017en\u00e9 jej odl\u00e9vat, ale d\u00edky jeho pevnosti, trvanlivosti a odolnosti proti korozi je vhodn\u00fd pro pou\u017eit\u00ed v n\u00e1ro\u010dn\u00fdch zpracovatelsk\u00fdch prost\u0159ed\u00edch, jako jsou pece a v\u00fdhn\u011b.<\/p>\n
Keramick\u00e9 vyzd\u00edvky slo\u017een\u00e9 z oxidu hlinit\u00e9ho jsou \u0161iroce vyu\u017e\u00edv\u00e1ny jako vyzd\u00edvky vysok\u00fdch pec\u00ed k ochran\u011b kovov\u00fdch trysek a lancet, \u017e\u00e1ruvzdorn\u00e9 vyzd\u00edvky ocel\u00e1\u0159sk\u00fdch pec\u00ed a rota\u010dn\u00edch pec\u00ed, jako\u017e i jako odl\u00e9vac\u00ed \u017e\u00e1ruvzdorn\u00e9 cihly pro procesy odl\u00e9v\u00e1n\u00ed do p\u00edsku. Hlin\u00edk m\u00e1 n\u00edzk\u00fd koeficient rozta\u017enosti, kter\u00fd mu umo\u017e\u0148uje odol\u00e1vat velmi vysok\u00fdm teplot\u00e1m, ani\u017e by se deformoval nebo praskal; nav\u00edc je odoln\u00fd v\u016f\u010di p\u016fsoben\u00ed kyselin, o \u010dem\u017e sv\u011bd\u010d\u00ed jeho \u00fasp\u011bch jako izolantu p\u0159i aplikaci izolac\u00ed elektrick\u00fdch vodi\u010d\u016f v n\u00e1ro\u010dn\u00fdch elektrick\u00fdch aplikac\u00edch, jako jsou aplikace m\u011bd\u011bn\u00fdch vodi\u010d\u016f v korozivn\u00edm prost\u0159ed\u00ed.<\/p>\n
Vysok\u00fd bod t\u00e1n\u00ed oxidu hlinit\u00e9ho z n\u011bj \u010din\u00ed ide\u00e1ln\u00ed \u017e\u00e1ruvzdorn\u00fd materi\u00e1l pro v\u00fdrobu skla, kde se v mnoha okenn\u00edch a obalov\u00fdch sklech vyskytuj\u00ed pouze stopov\u00e1 mno\u017estv\u00ed Al2O3. Pokud by se tato skla pou\u017e\u00edvala jako glazury, tekla by a praskala kv\u016fli nedostatku \u017e\u00e1ruvzdorn\u00fdch prvk\u016f ve slo\u017een\u00ed.<\/p>\n
P\u0159id\u00e1n\u00ed i mal\u00e9ho mno\u017estv\u00ed oxidu hlinit\u00e9ho do receptury skla v\u0161ak umo\u017e\u0148uje jeho taven\u00ed p\u0159i ni\u017e\u0161\u00ed teplot\u011b a z\u00e1rove\u0148 zlep\u0161uje pevnost v tahu, povrchov\u00e9 nap\u011bt\u00ed, lesk, d\u00e9lku pracovn\u00edho rozsahu, odolnost proti devitrifikaci a hou\u017eevnatost. P\u0159id\u00e1n\u00ed pouh\u00e9 \u0161petky nav\u00edc v\u00fdrazn\u011b zvy\u0161uje pevnost v ohybu a tahu a sni\u017euje k\u0159ehk\u00e9 lomov\u00e9 chov\u00e1n\u00ed.<\/p>\n
\u017d\u00e1ruvzdorn\u00e9 vlastnosti oxidu hlinit\u00e9ho z n\u011bj \u010din\u00ed vynikaj\u00edc\u00edho kandid\u00e1ta pro pou\u017eit\u00ed jako l\u00e9ka\u0159sk\u00fd oxid hlinit\u00fd, kter\u00fd se pou\u017e\u00edv\u00e1 pro zubn\u00ed implant\u00e1ty a dal\u0161\u00ed biomedic\u00ednsk\u00e9 aplikace. Medic\u00ednsk\u00fd oxid hlinit\u00fd se vyr\u00e1b\u00ed r\u016fzn\u00fdmi technikami konsolidace a slinov\u00e1n\u00ed, kter\u00e9 umo\u017e\u0148uj\u00ed z\u00edskat p\u0159esn\u00e9 t\u00e9m\u011b\u0159 s\u00ed\u0165ov\u00e9 tvary s \u0161irok\u00fdm rozsahem \u010distoty. A\u010dkoli jeho m\u00edrn\u00e1 pevnost v tahu\/ohybu nedosahuje pevnosti po\u017eadovan\u00e9 u polykrystalick\u00fdch korundov\u00fdch implant\u00e1t\u016f pro implant\u00e1ty, d\u00edky jeho vynikaj\u00edc\u00edm mechanick\u00fdm vlastnostem stoj\u00ed tento materi\u00e1l za zv\u00e1\u017een\u00ed pro l\u00e9ka\u0159sk\u00e9 aplikace.<\/p>\n
Hlin\u00edk se od ostatn\u00edch kov\u016f a slitin odli\u0161uje silnou meziatomovou vazbou, kter\u00e1 mu prop\u016fj\u010duje jedine\u010dn\u00e9 vlastnosti, kter\u00e9 se jinde nevyskytuj\u00ed, v\u010detn\u011b vysok\u00e9 pevnosti a tvrdosti, vynikaj\u00edc\u00edch dielektrick\u00fdch vlastnost\u00ed p\u0159i n\u00edzk\u00fdch i zv\u00fd\u0161en\u00fdch teplot\u00e1ch, vynikaj\u00edc\u00ed odolnosti proti chemick\u00e9mu napaden\u00ed a korozi p\u0159i pokojov\u00fdch i zv\u00fd\u0161en\u00fdch teplot\u00e1ch, vynikaj\u00edc\u00edch tepeln\u00fdch vlastnost\u00ed p\u0159i vysok\u00fdch teplot\u00e1ch a tak\u00e9 jako \u00fa\u010dinn\u00e9 \u0159e\u0161en\u00ed pro odvod tepla.<\/p>\n
Hlin\u00edk se dod\u00e1v\u00e1 v n\u011bkolika form\u00e1ch, v\u010detn\u011b granul\u00ed, pr\u00e1\u0161ku a suspenze, a lze jej tvarovat do nejr\u016fzn\u011bj\u0161\u00edch tvar\u016f. Hlin\u00edk se vyzna\u010duje st\u0159edn\u00ed pevnost\u00ed v tahu a pevnost\u00ed v ohybu a od mnoha polykrystalick\u00fdch keramick\u00fdch materi\u00e1l\u016f se li\u0161\u00ed t\u00edm, \u017ee jeho tepeln\u00e1 vodivost a bod t\u00e1n\u00ed jsou relativn\u011b n\u00edzk\u00e9 - co\u017e znamen\u00e1, \u017ee odl\u00e9v\u00e1n\u00ed velk\u00fdch d\u00edl\u016f je nemo\u017en\u00e9.<\/p>\n
Alfa f\u00e1ze oxidu hlinit\u00e9ho (Al2O3) je materi\u00e1l, kter\u00fd se nej\u010dast\u011bji pou\u017e\u00edv\u00e1 pro konstruk\u010dn\u00ed aplikace oxidu hlinit\u00e9ho. Tato polykrystalick\u00e1 forma se vyzna\u010duje hexagon\u00e1ln\u011b uspo\u0159\u00e1dan\u00fdmi ionty kysl\u00edku, kter\u00e9 vypl\u0148uj\u00ed dv\u011b t\u0159etiny v\u0161ech oktaedrick\u00fdch mezer. Hlin\u00edk tak\u00e9 vykazuje metastabilitu v kubick\u00fdch f\u00e1z\u00edch g a e, monoklinick\u00e9 f\u00e1zi k a ortorhombick\u00e9 f\u00e1zi d, kter\u00e9 se nakonec p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch vracej\u00ed zp\u011bt do stabiln\u00ed hexagon\u00e1ln\u00ed f\u00e1ze alfa.<\/p>\n
\u010cist\u00fd oxid hlinit\u00fd m\u00e1 mnoho pr\u016fmyslov\u00fdch pou\u017eit\u00ed a obvykle se dod\u00e1v\u00e1 ve form\u011b hlinitanu sodn\u00e9ho se vzorcem NaAlO. Tento materi\u00e1l se vyr\u00e1b\u00ed pra\u017een\u00edm bauxitu p\u0159i vysok\u00fdch teplot\u00e1ch za vzniku hlinitanu sodn\u00e9ho a pot\u00e9 se rozemele na jemn\u00fd pr\u00e1\u0161ek p\u0159ed sm\u00edch\u00e1n\u00edm s vodou, aby vznikla suspenze pro dal\u0161\u00ed zpracov\u00e1n\u00ed.<\/p>\n
Modern\u00ed v\u00fdrobky z oxidu hlinit\u00e9ho se obvykle pohybuj\u00ed v rozmez\u00ed \u010distoty 85%-100%, tak\u017ee jsou vhodn\u00e9 pro zapalovac\u00ed sv\u00ed\u010dky a substr\u00e1ty pro mikro\u010dipy, jako\u017e i pro vysoce v\u00fdkonn\u00e9 keramick\u00e9 aplikace, jako je potahov\u00e1n\u00ed tlust\u00fdch vrstev.<\/p>\n
\u010cist\u00fd oxid hlinit\u00fd p\u0159ekon\u00e1v\u00e1 porcel\u00e1novou elektrickou izolaci nejm\u00e9n\u011b o dva \u0159\u00e1dy p\u0159i pokojov\u00fdch teplot\u00e1ch a o \u010dty\u0159i \u0159\u00e1dy p\u0159i vysok\u00fdch teplot\u00e1ch a je v\u00fdrazn\u011b m\u00e9n\u011b n\u00e1chyln\u00fd k alkalick\u00fdm vliv\u016fm, kter\u00e9 zp\u016fsobuj\u00ed degradaci.<\/p>\n
Mezi mechanick\u00e9 vlastnosti oxidu hlinit\u00e9ho pat\u0159\u00ed jeho pevnost nebo odolnost v\u016f\u010di deforma\u010dn\u00edmu nam\u00e1h\u00e1n\u00ed. D\u00edky t\u00e9to vlastnosti je keramika z oxidu hlinit\u00e9ho vysoce odoln\u00e1 v\u016f\u010di n\u00e1raz\u016fm a zachov\u00e1v\u00e1 si sv\u016fj tvar a velikost i p\u0159i siln\u00e9m tlaku. Krom\u011b toho m\u00e1 oxid hlinit\u00fd vysokou pevnost v tlaku, kter\u00e1 umo\u017e\u0148uje p\u0159en\u00e1\u0161et velk\u00e1 zat\u00ed\u017een\u00ed, ani\u017e by se po\u0161kodila, zat\u00edmco jeho pevnost v tahu a ohybu umo\u017e\u0148uje konstruk\u010dn\u00edm sou\u010d\u00e1stem a d\u00edl\u016fm z\u016fstat neporu\u0161en\u00e9 a funk\u010dn\u00ed.<\/p>\n
Hlin\u00edk se m\u016f\u017ee pochlubit vynikaj\u00edc\u00edmi mechanick\u00fdmi vlastnostmi, jako je trvanlivost a odolnost v\u016f\u010di chemick\u00fdm vliv\u016fm, d\u00edky \u010demu\u017e je vhodn\u00fd pro pr\u016fmyslov\u00e9 a komer\u010dn\u00ed aplikace, v\u010detn\u011b elektr\u00e1ren a tov\u00e1ren. Jako jedna z nejodoln\u011bj\u0161\u00edch technick\u00fdch keramik, kter\u00e9 jsou dnes k dispozici, odol\u00e1v\u00e1 oxid hlinit\u00fd extr\u00e9mn\u00edm teplot\u00e1m i opot\u0159eben\u00ed, co\u017e z n\u011bj \u010din\u00ed vynikaj\u00edc\u00ed materi\u00e1l pro v\u00fdrobu v\u00fdrobk\u016f, jako jsou elektrick\u00e9 izol\u00e1tory, plynov\u00e9 laserov\u00e9 trubice, t\u011bsnic\u00ed krou\u017eky a laboratorn\u00ed za\u0159\u00edzen\u00ed.<\/p>\n
Odolnost oxidu hlinit\u00e9ho v\u016f\u010di \u00fatok\u016fm z n\u011bj \u010din\u00ed tak\u00e9 vyhled\u00e1van\u00fd materi\u00e1l pro v\u00fdrobu ochrann\u00fdch panc\u00ed\u0159\u016f, co\u017e z n\u011bj \u010din\u00ed jednu z nejobl\u00edben\u011bj\u0161\u00edch voleb mezi v\u00fdrobci vojensk\u00fdch vozidel a person\u00e1lu. Tvrdost a bioinertnost oxidu hlinit\u00e9ho se zde ukazuj\u00ed jako obzvl\u00e1\u0161t\u011b u\u017eite\u010dn\u00e9; d\u00edky tomu je vhodn\u00fd pro v\u00fdrobu lo\u017eisek ky\u010deln\u00edch n\u00e1hrad, bionick\u00fdch implant\u00e1t\u016f, tk\u00e1\u0148ov\u00fdch v\u00fdztu\u017e\u00ed, aplikac\u00ed tk\u00e1\u0148ov\u00fdch le\u0161en\u00ed i pro l\u00e9ka\u0159sk\u00e9 pou\u017eit\u00ed, jako jsou lo\u017eiska ky\u010deln\u00edch n\u00e1hrad. Krom\u011b toho je oxid hlinit\u00fd d\u00edky sv\u00e9 odolnosti tak\u00e9 vynikaj\u00edc\u00ed volbou p\u0159i v\u00fdrob\u011b balistick\u00fdch panc\u00ed\u0159\u016f.<\/p>\n
Keramika z oxidu hlinit\u00e9ho m\u00e1 n\u00edzkou akutn\u00ed a chronickou toxicitu a p\u0159i kr\u00e1tk\u00e9 expozici zp\u016fsobuje pouze m\u00edrn\u00e9 podr\u00e1\u017ed\u011bn\u00ed k\u016f\u017ee, co\u017e z n\u00ed \u010din\u00ed ide\u00e1ln\u00ed materi\u00e1l pro pou\u017eit\u00ed ve zdravotnick\u00e9m vybaven\u00ed a zdravotnick\u00fdch aplikac\u00edch. D\u00edky sv\u00e9 nereaktivit\u011b s r\u016fzn\u00fdmi chemick\u00fdmi l\u00e1tkami se korundov\u00e1 keramika st\u00e1le \u010dast\u011bji pou\u017e\u00edv\u00e1 jako n\u00e1hrada chirurgick\u00fdch n\u00e1stroj\u016f, jako je karbid wolframu; pro optim\u00e1ln\u00ed po\u017eadavky na hou\u017eevnatost v\u0161ak mus\u00ed l\u00e9ka\u0159sk\u00fd korund nejprve proj\u00edt p\u0159\u00edsnou regulac\u00ed b\u011bhem procesu sp\u00e9k\u00e1n\u00ed.<\/p>\n
<\/p>","protected":false},"excerpt":{"rendered":"
Aluminum oxide (Al2O3), also referred to as alumina, is an electrical insulator with excellent chemical resistance and moderate tensile and […]<\/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":"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":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","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":[6],"tags":[],"class_list":["post-82","post","type-post","status-publish","format-standard","hentry","category-alumina-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/82","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/comments?post=82"}],"version-history":[{"count":3,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/82\/revisions"}],"predecessor-version":[{"id":206,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/82\/revisions\/206"}],"wp:attachment":[{"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/media?parent=82"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/categories?post=82"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/tags?post=82"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}