Oxid hlinit\u00fd (zn\u00e1m\u00fd tak\u00e9 jako oxid hlinit\u00fd nebo Al2O3) je jednou z nejpou\u017e\u00edvan\u011bj\u0161\u00edch pr\u016fmyslov\u00fdch keramik. Vyr\u00e1b\u00ed se z bauxitov\u00fdch lo\u017eisek a po rafinaci ho lze nal\u00e9zt v izol\u00e1torech jiskrov\u00fdch sv\u00ed\u010dek, integrovan\u00fdch obvodech, kostn\u00edch a zubn\u00edch implant\u00e1tech, laboratorn\u00edm n\u00e1dob\u00ed a dokonce i v \u017e\u00e1ruvzdorn\u00fdch vyzd\u00edvk\u00e1ch pec\u00ed.<\/p>\n
Oxid hlinit\u00fd je inertn\u00ed a netoxick\u00e1 slou\u010denina, kterou lze bezpe\u010dn\u011b vdechovat. Krom\u011b toho je d\u00edky sv\u00fdm schopnostem sni\u017eovat korozi a opot\u0159eben\u00ed velmi \u00fa\u010dinn\u00fd v n\u00e1ro\u010dn\u00fdch podm\u00ednk\u00e1ch zpracov\u00e1n\u00ed.<\/p>\n
Oxid hlinit\u00fd je b\u00edl\u00fd pr\u00e1\u0161ek slo\u017een\u00fd z oxidu hlinit\u00e9ho, kter\u00fd se hojn\u011b pou\u017e\u00edv\u00e1 v \u010distic\u00edch prost\u0159edc\u00edch, kosmetice a p\u0159edm\u011btech osobn\u00ed p\u00e9\u010de. Hlin\u00edk funguje tak\u00e9 jako abrazivum a protisp\u00e9kav\u00e1 l\u00e1tka; vysoce v\u00fdkonn\u00e9 materi\u00e1ly, jako jsou pr\u016fmyslov\u00e9 \u017e\u00e1ruvzdorn\u00e9 materi\u00e1ly a keramika, obvykle obsahuj\u00ed hlin\u00edk jako slo\u017eku.<\/p>\n
Keramika z oxidu hlinit\u00e9ho je mimo\u0159\u00e1dn\u011b flexibiln\u00ed materi\u00e1l, kter\u00fd lze tvarovat do r\u016fzn\u00fdch tvar\u016f a velikost\u00ed pro v\u00fdrobu a spojovat r\u016fzn\u00fdmi technikami konsolidace a slinov\u00e1n\u00ed, \u010d\u00edm\u017e se vytv\u00e1\u0159ej\u00ed p\u0159esn\u00e9 tvary bl\u00edzk\u00e9 s\u00edti s vysokou \u010distotou. Krom\u011b toho vykazuj\u00ed v\u00fdjime\u010dnou odolnost v\u016f\u010di chemick\u00fdm vliv\u016fm i extr\u00e9mn\u00edm teplot\u00e1m.<\/p>\n
Obvykle se oxid hlinit\u00fd vyr\u00e1b\u00ed Bayerov\u00fdm procesem, kter\u00fd za\u010d\u00edn\u00e1 drcen\u00fdm a pran\u00fdm bauxitem, kter\u00fd se sm\u00edch\u00e1 s kaustickou sodou a vytvo\u0159\u00ed ka\u0161i, kter\u00e1 se zah\u0159\u00edv\u00e1 na vysokou teplotu a reaguje s hlinitanem sodn\u00fdm a vodou za vzniku hlinitanu sodn\u00e9ho a vody. Po v\u00fdrob\u011b se tento roztok oxidu hlinit\u00e9ho \u010derp\u00e1 do sr\u00e1\u017eec\u00edch n\u00e1dr\u017e\u00ed, kde iniciuje reakce, p\u0159i nich\u017e vznikaj\u00ed pevn\u00e9 krystaly hydroxidu hlinit\u00e9ho, kter\u00e9 se pozd\u011bji odfiltruj\u00ed, aby se odstranily ve\u0161ker\u00e9 ne\u010distoty, a teprve pot\u00e9 se odfiltruj\u00ed pro tvorbu krystal\u016f.<\/p>\n
Tato sm\u011bs se rozemele na jemn\u00e9 \u010d\u00e1stice a sm\u00edch\u00e1 s mal\u00fdm mno\u017estv\u00edm j\u00edlu nebo mineraliz\u00e1toru, \u010d\u00edm\u017e vznikne granulovan\u00fd materi\u00e1l, kter\u00fd se n\u00e1sledn\u011b slinuje p\u0159i velmi vysok\u00fdch teplot\u00e1ch, \u010d\u00edm\u017e vznik\u00e1 hust\u00e1 keramika zvan\u00e1 alfa-alumina (naz\u00fdvan\u00e1 tak\u00e9 aktivovan\u00fd oxid hlinit\u00fd). Tato keramika m\u00e1 vynikaj\u00edc\u00ed tepelnou a chemickou stabilitu, jako\u017e i pevnost, tvrdost, n\u00edzkou elektrickou vodivost a tepelnou vodivost.<\/p>\n
Technick\u00e1 keramika, zn\u00e1m\u00e1 tak\u00e9 jako pokro\u010dil\u00e1 nebo technick\u00e1 keramika, se st\u00e1le \u010dast\u011bji pou\u017e\u00edv\u00e1 pro technick\u00e9 aplikace, jako je odolnost proti opot\u0159eben\u00ed. Slo\u017een\u00ed navr\u017een\u00e1 speci\u00e1ln\u011b pro tyto n\u00e1ro\u010dn\u00e9 aplikace, jako je odolnost proti korozi a opot\u0159eben\u00ed, pom\u00e1haj\u00ed zajistit optim\u00e1ln\u00ed v\u00fdkon i v n\u00e1ro\u010dn\u00fdch podm\u00ednk\u00e1ch, jako jsou pece a pece na v\u00fdrobn\u00edch link\u00e1ch.<\/p>\n
Chronick\u00e1 expozice prachu oxidu hlinit\u00e9ho m\u016f\u017ee v\u00e9st k fibrogenn\u00edmu onemocn\u011bn\u00ed plic, i kdy\u017e ne ve stejn\u00e9 m\u00ed\u0159e jako expozice oxidu k\u0159emi\u010dit\u00e9mu nebo azbestu. Mezi p\u0159\u00edznaky mohou pat\u0159it d\u00fdchac\u00ed obt\u00ed\u017ee a \u00faporn\u00fd ka\u0161el; toto onemocn\u011bn\u00ed je v\u0161ak na\u0161t\u011bst\u00ed m\u00e9n\u011b \u010dast\u00e9 ne\u017e pneumokoni\u00f3za a lze mu p\u0159edej\u00edt pravideln\u00fdm pobytem na \u010derstv\u00e9m vzduchu.<\/p>\n
Oxid hlinit\u00fd (alumina) je amfotern\u00ed oxid s chemick\u00fdm vzorcem Al2O3. V z\u00e1vislosti na sv\u00e9m okol\u00ed m\u016f\u017ee p\u016fsobit jak kysele, tak z\u00e1sadit\u011b, m\u00e1 vysok\u00e9 teploty t\u00e1n\u00ed a varu a z\u00e1rove\u0148 je jedn\u00edm z nejtvrd\u0161\u00edch materi\u00e1l\u016f, kter\u00e9 \u010dlov\u011bk zn\u00e1. Oxid hlinit\u00fd m\u00e1 vynikaj\u00edc\u00ed teplotu t\u00e1n\u00ed, pevnost, odolnost proti ot\u011bru a tepelnou vodivost, co\u017e z n\u011bj \u010din\u00ed jeden z nejpou\u017e\u00edvan\u011bj\u0161\u00edch pr\u016fmyslov\u00fdch miner\u00e1l\u016f a jeho v\u00fdroba z r\u016fzn\u00fdch surovin m\u016f\u017ee b\u00fdt r\u016fzn\u00e1; \u010dasto se z\u00edsk\u00e1v\u00e1 z lo\u017eisek bauxitu, ne\u017e se rozemele na r\u016fzn\u00e9 tvary velikosti stupn\u011b pro pou\u017eit\u00ed jako ekonomick\u00e1 n\u00e1hrada pr\u016fmyslov\u00fdch diamant\u016f.<\/p>\n
Hlin\u00edk je po adamantu a saf\u00edru t\u0159et\u00ed nejtvrd\u0161\u00ed p\u0159\u00edrodn\u00ed l\u00e1tkou, p\u0159i\u010dem\u017e korund je jeho nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00ed krystalickou formou, z n\u00ed\u017e se vyr\u00e1b\u011bj\u00ed rub\u00edny a saf\u00edry; jejich odst\u00edn poch\u00e1z\u00ed ze stopov\u00e9ho mno\u017estv\u00ed dal\u0161\u00edch p\u0159\u00edm\u011bs\u00ed, jako jsou chrom a titan, kter\u00e9 t\u011bmto drahokam\u016fm prop\u016fj\u010duj\u00ed barvu. Hlin\u00edk tvo\u0159\u00ed tak\u00e9 ned\u00edlnou sou\u010d\u00e1st brusn\u00fdch zrn brusn\u00fdch kotou\u010d\u016f; d\u00e1le slou\u017e\u00ed jako kl\u00ed\u010dov\u00fd materi\u00e1l v keramick\u00fdch aplikac\u00edch s vynikaj\u00edc\u00edmi elektrick\u00fdmi vlastnostmi v\u010detn\u011b n\u00edzk\u00fdch dielektrick\u00fdch ztr\u00e1t a \u00fa\u010din\u00edku pro v\u00fdrobu keramick\u00fdch v\u00fdrobk\u016f, jako jsou ty, kter\u00e9 se v nich nach\u00e1zej\u00ed.<\/p>\n
V\u00fdroba oxidu hlinit\u00e9ho spo\u010d\u00edv\u00e1 v rozpu\u0161t\u011bn\u00ed bauxitov\u00e9 rudy v kaustick\u00e9 sod\u011b a odfiltrov\u00e1n\u00ed roztoku, zn\u00e1m\u00e9ho jako hydroxid hlinit\u00fd, p\u0159ed jeho sm\u00edch\u00e1n\u00edm s vodou ve sr\u00e1\u017eec\u00edch n\u00e1dr\u017e\u00edch, aby se vysr\u00e1\u017eel zbytek bauxitu, zn\u00e1m\u00fd jako \u010derven\u00e9 bahno, kter\u00fd se pak likviduje v rafin\u00e9rii.<\/p>\n
Prim\u00e1rn\u00edm zdrojem prim\u00e1rn\u00edho kovov\u00e9ho hlin\u00edku je oxid hlinit\u00fd. Krom\u011b toho slou\u017e\u00ed oxid hlinit\u00fd k r\u016fzn\u00fdm pr\u016fmyslov\u00fdm \u00fa\u010del\u016fm i mimo tuto prim\u00e1rn\u00ed \u00falohu, v\u010detn\u011b plniva v plastech a cihl\u00e1ch a jako brusivo p\u0159i testov\u00e1n\u00ed odolnosti brusn\u00e9ho pap\u00edru proti ot\u011bru. Hlin\u00edk lze tak\u00e9 pou\u017e\u00edt k p\u0159id\u00e1n\u00ed reflexn\u00edch efekt\u016f v automobilov\u00fdch lac\u00edch a z\u00e1rove\u0148 p\u016fsob\u00ed jako katalyz\u00e1tor p\u0159i v\u00fdrob\u011b fenolu.<\/p>\n
Hlin\u00edk je b\u00edl\u00fd netoxick\u00fd miner\u00e1l s vysokou mechanickou pevnost\u00ed a tvrdost\u00ed, odolnost\u00ed proti korozi a vynikaj\u00edc\u00ed chemickou stabilitou. \u010casto se pou\u017e\u00edv\u00e1 v \u017e\u00e1ruvzdorn\u00fdch materi\u00e1lech, brusivech a r\u016fzn\u00fdch form\u00e1ch skl\u00e1\u0159sk\u00fdch v\u00fdrobk\u016f; nav\u00edc m\u016f\u017ee b\u00fdt zpracov\u00e1n na karbid k\u0159em\u00edku - ekonomick\u00fd materi\u00e1l pou\u017e\u00edvan\u00fd p\u0159i v\u00fdrob\u011b \u0159ezn\u00fdch n\u00e1stroj\u016f.<\/p>\n
Oxid hlinit\u00fd (zn\u00e1m\u00fd tak\u00e9 jako oxid hlinit\u00fd) je nepostradateln\u00fd miner\u00e1l pou\u017e\u00edvan\u00fd v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch. Nej\u010dast\u011bji se z\u00edsk\u00e1v\u00e1 z rudy zvan\u00e9 bauxit, kter\u00e1 obsahuje oxid hlinit\u00fd, oxid k\u0159emi\u010dit\u00fd, oxid \u017eelezit\u00fd a j\u00edl spolu s r\u016fzn\u00fdmi k\u0159emi\u010ditany - je to hlavn\u00ed sv\u011btov\u00fd zdroj \u010dist\u00e9ho oxidu hlinit\u00e9ho, kter\u00fd se pou\u017e\u00edv\u00e1 v hrn\u010d\u00ed\u0159stv\u00ed, keramice, \u017e\u00e1ruvzdorn\u00fdch materi\u00e1lech, nosi\u010d\u00edch katalyz\u00e1tor\u016f a tak\u00e9 p\u0159i v\u00fdrob\u011b kovov\u00e9ho hlin\u00edku Hallov\u00fdm procesem.<\/p>\n
Hlin\u00edk je inertn\u00ed materi\u00e1l s vynikaj\u00edc\u00edmi mechanick\u00fdmi vlastnostmi. D\u00edky sv\u00e9 v\u00fdjime\u010dn\u00e9 pevnosti a odolnosti proti opot\u0159eben\u00ed je oxid hlinit\u00fd atraktivn\u00edm materi\u00e1lem pro vysoce v\u00fdkonn\u00e9 pr\u016fmyslov\u00e9 keramick\u00e9 aplikace, jako je oblo\u017een\u00ed potrub\u00ed nebo jin\u00fdch potrubn\u00edch komponent. Hlin\u00edk lze tak\u00e9 kombinovat se zirkoniov\u00fdmi nebo k\u0159em\u00edkovokarbidov\u00fdmi whiskery pro dal\u0161\u00ed zv\u00fd\u0161en\u00ed odolnosti proti erozi a hou\u017eevnatosti. Krom\u011b toho lze oxid hlinit\u00fd vyr\u00e1b\u011bt v mnoha tvarech a velikostech pomoc\u00ed r\u016fzn\u00fdch konsolida\u010dn\u00edch a sp\u00e9kac\u00edch technik; nav\u00edc z n\u011bj lze vyr\u00e1b\u011bt i brusn\u00e9 materi\u00e1ly, jako je brusn\u00fd pap\u00edr nebo zrnitost.<\/p>\n
D\u00edky sv\u00e9 chemick\u00e9 inertnosti a odolnosti v\u016f\u010di korozi se oxid hlinit\u00fd hojn\u011b vyu\u017e\u00edv\u00e1 ve zdravotnictv\u00ed. D\u00edky sv\u00e9 chemick\u00e9 inertnosti a odolnosti v\u016f\u010di korozi je atraktivn\u00ed volbou pro v\u00fdrobu ky\u010deln\u00edch n\u00e1hrad, um\u011bl\u00fdch kloub\u016f, bionick\u00fdch implant\u00e1t\u016f a tk\u00e1\u0148ov\u00fdch v\u00fdztuh - je tak\u00e9 dostate\u010dn\u011b odoln\u00fd, aby odolal vysok\u00fdm teplot\u00e1m a tlak\u016fm, ani\u017e by se \u010dasem zhor\u0161ila jeho kvalita.<\/p>\n
Oxid hlinit\u00fd se d\u00edky sv\u00fdm protisp\u00e9kav\u00fdm vlastnostem hojn\u011b pou\u017e\u00edv\u00e1 v kosmetick\u00fdch p\u0159\u00edpravc\u00edch a p\u0159\u00edpravc\u00edch pro osobn\u00ed hygienu, v\u010detn\u011b rt\u011bnek a tv\u00e1\u0159enek. Krom\u011b toho oxid hlinit\u00fd p\u016fsob\u00ed jako absorb\u00e9r vlhkosti; nav\u00edc se \u010dasto pou\u017e\u00edv\u00e1 v p\u0159\u00edpravc\u00edch pro p\u00e9\u010di o ple\u0165 jako exfoliant a abrazivum. Americk\u00fd \u00da\u0159ad pro kontrolu potravin a l\u00e9\u010div povolil pou\u017eit\u00ed oxidu hlinit\u00e9ho jako slo\u017eky v n\u011bkter\u00fdch p\u0159\u00edpravc\u00edch pro p\u00e9\u010di o ple\u0165 a v n\u00e1stroj\u00edch pro odstra\u0148ov\u00e1n\u00ed chloupk\u016f, jako jsou holic\u00ed strojky a vosky. A\u010dkoli jeho p\u0159irozen\u00e1 barva je b\u00edl\u00e1, lze pomoc\u00ed r\u016fzn\u00fdch slou\u010denin vytvo\u0159it i jeho op\u00e1len\u00e9 nebo t\u00f3novan\u00e9 verze. Spole\u010dnost International Syalons vyr\u00e1b\u00ed oxid hlinit\u00fd s r\u016fzn\u00fdmi fyzik\u00e1ln\u00edmi vlastnostmi, aby vyhovoval jedine\u010dn\u00fdm zpracovatelsk\u00fdm prost\u0159ed\u00edm, kter\u00e1 se nach\u00e1zej\u00ed v pec\u00edch a pec\u00edch, co\u017e \u010din\u00ed jej\u00ed produkt ide\u00e1ln\u00edm pro dent\u00e1ln\u00ed v\u00fdrobky, jako jsou v\u00fdpln\u011b a tmely. Krom\u011b toho tento materi\u00e1l slou\u017e\u00ed jako surovina p\u0159i v\u00fdrob\u011b syntetick\u00fdch diamant\u016f.<\/p>\n
Oxid hlinit\u00fd (oxid hlinit\u00fd) je jedn\u00edm z nejuniverz\u00e1ln\u011bj\u0161\u00edch keramick\u00fdch materi\u00e1l\u016f a m\u00e1 mnoho u\u017eite\u010dn\u00fdch vlastnost\u00ed v\u010detn\u011b vysok\u00e9 pevnosti, tuhosti a tvrdosti (9 stup\u0148\u016f Mohsovy stupnice). Krom\u011b toho je oxid hlinit\u00fd vynikaj\u00edc\u00edm elektrick\u00fdm izolantem s n\u00edzk\u00fdm ztr\u00e1tov\u00fdm tangens a rychlost\u00ed rozptylu; odoln\u00fd v\u016f\u010di kysel\u00fdm a z\u00e1sadit\u00fdm l\u00e1tk\u00e1m s n\u00edzk\u00fdm tlakem par\/teplotou t\u00e1n\u00ed; cenov\u011b v\u00fdhodn\u00e9 ceny, tepeln\u011b stabiln\u00ed vlastnosti \u010din\u00ed z oxidu hlinit\u00e9ho atraktivn\u00ed volbu materi\u00e1lu pro celou \u0159adu aplikac\u00ed.<\/p>\n
Hlin\u00edk se vyr\u00e1b\u00ed z bauxitov\u00e9 rudy Bayerov\u00fdm procesem, p\u0159i n\u011bm\u017e se k rozpu\u0161t\u011bn\u00ed miner\u00e1l\u016f obsahuj\u00edc\u00edch hlin\u00edk pou\u017e\u00edv\u00e1 \u017e\u00edrav\u00e1 soda, kter\u00e1 se n\u00e1sledn\u011b vysr\u00e1\u017e\u00ed a vykrystalizuje z roztoku hlinitanu sodn\u00e9ho, po n\u011bm\u017e n\u00e1sleduje tepeln\u00e9 zpracov\u00e1n\u00ed, p\u0159i n\u011bm\u017e se odstran\u00ed v\u00e1zan\u00e1 voda a z\u00edsk\u00e1 se \u010dist\u00fd pr\u00e1\u0161kov\u00fd oxid hlinit\u00fd, kter\u00fd lze pot\u00e9 pou\u017e\u00edt pro r\u016fzn\u00e9 aplikace, v\u010detn\u011b vyzd\u00edvek pr\u016fmyslov\u00fdch pec\u00ed jako \u017e\u00e1ruvzdorn\u00e9 vyzd\u00edvky nebo suroviny pro v\u00fdrobu kovov\u00e9ho hlin\u00edku.<\/p>\n
Korund je ve sv\u00e9 krystalick\u00e9 form\u011b z\u00e1kladn\u00ed slo\u017ekou rub\u00edn\u016f a saf\u00edr\u016f. Korund je v\u0161estrann\u00e1 chemick\u00e1 l\u00e1tka, kterou lze nal\u00e9zt v kosmetice, l\u00e9\u010div\u00fdch p\u0159\u00edpravc\u00edch a mnoha dal\u0161\u00edch produktech - americk\u00fd \u00da\u0159ad pro kontrolu potravin a l\u00e9\u010div ji dokonce schv\u00e1lil jako barevnou p\u0159\u00edsadu do n\u011bkter\u00fdch voln\u011b prodejn\u00fdch l\u00e9k\u016f!<\/p>\n
Tribologick\u00e1 odezva oxidu hlinit\u00e9ho z\u00e1vis\u00ed na struktu\u0159e jeho povrchu a na podm\u00ednk\u00e1ch kontaktu, v\u010detn\u011b zat\u00ed\u017een\u00ed, rychlosti, teploty a podm\u00ednek na protilehl\u00e9 plo\u0161e. Keramiku oxidu hlinit\u00e9ho lze rozd\u011blit do dvou kategori\u00ed: oxidov\u00e1 keramika, jako je Al2O3 (kam pat\u0159\u00ed oxid hlinit\u00fd) a saf\u00edr (forma Al2O3 v drahokamov\u00e9 kvalit\u011b), a neoxidov\u00e1 keramika, jako jsou r\u016fzn\u00e9 nitridy a karbidy; resp.<\/p>\n
Keramika z oxidu hlinit\u00e9ho m\u016f\u017ee b\u00fdt velmi u\u017eite\u010dn\u00e1 p\u0159i vyzd\u00edv\u00e1n\u00ed n\u00e1dob a potrub\u00ed pro p\u0159enos hmoty, kter\u00e9 vy\u017eaduj\u00ed vysokou tepelnou odolnost, a tak\u00e9 u slo\u017eit\u00fdch n\u00e1stroj\u016f, jako je rotor z keramiky z oxidu hlinit\u00e9ho 95% pro 20 cm rota\u010dn\u00ed ventil. Jejich vyu\u017eit\u00ed nav\u00edc p\u0159esahuje tyto specifick\u00e9 funkce - tato keramika m\u016f\u017ee b\u00fdt pou\u017eita tak\u00e9 k potahov\u00e1n\u00ed pap\u00edru, barev, lepidel, pry\u017eov\u00fdch v\u00fdrobk\u016f, lisov\u00e1n\u00ed gumov\u00fdch pneumatik atd. Obsah oxidu hlinit\u00e9ho v nich se pohybuje v rozmez\u00ed 75%-95% v z\u00e1vislosti na tom, jak\u00fd druh materi\u00e1lu oxidu hlinit\u00e9ho je pro pot\u0159eby potahov\u00e1n\u00ed\/pln\u011bn\u00ed pot\u0159eba.<\/p>","protected":false},"excerpt":{"rendered":"
Alumina (also known as aluminum oxide or Al2O3) is one of the most widely utilized industrial ceramics. Produced from bauxite […]<\/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":[6],"tags":[],"class_list":["post-112","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\/112","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=112"}],"version-history":[{"count":1,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/112\/revisions"}],"predecessor-version":[{"id":113,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/112\/revisions\/113"}],"wp:attachment":[{"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/media?parent=112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/categories?post=112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/tags?post=112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}