![\"Co](\"https:\/\/aluminaceramics.net\/wp-content\/uploads\/2024\/05\/what-is-alumina-cte.jpg\")
<\/p>","protected":false},"excerpt":{"rendered":"Hlin\u00edk cte je modern\u00ed \u017e\u00e1ruvzdorn\u00fd materi\u00e1l s vynikaj\u00edc\u00ed p\u0159ilnavost\u00ed, kter\u00fd lze snadno tvarovat do tvar\u016f bl\u00edzk\u00fdch s\u00edti pomoc\u00ed r\u016fzn\u00fdch konsolida\u010dn\u00edch a sp\u00e9kac\u00edch metod, co\u017e umo\u017e\u0148uje p\u0159esn\u00e9 tvarov\u00e1n\u00ed bl\u00edzk\u00e9 s\u00edti. Krom\u011b toho je tento materi\u00e1l d\u00edky sv\u00e9 elektrick\u00e9 odolnosti a odolnosti v\u016f\u010di tepeln\u00fdm \u0161ok\u016fm velmi \u017e\u00e1dan\u00fd.<\/p>\n
Hlin\u00edk se vyzna\u010duje extr\u00e9mn\u011b n\u00edzk\u00fdm koeficientem tepeln\u00e9 rozta\u017enosti (CTE), tak\u017ee je vhodn\u00fd pro pr\u016fchodky a izol\u00e1tory mezi keramikou a kovem, pr\u016fchodky pro rentgenov\u00e9 sou\u010d\u00e1stky a sou\u010d\u00e1sti vakuov\u00fdch v\u00fdv\u011bv.<\/p>\n
Koeficient tepeln\u00e9 rozta\u017enosti (CTE) materi\u00e1lu ozna\u010duje rychlost n\u00e1r\u016fstu d\u00e9lky na jednotku zv\u00fd\u0161en\u00ed teploty nebo reakci na zm\u011bny teploty, kter\u00e1 z\u00e1vis\u00ed jak na specifick\u00e9m tvaru atom\u016f, tak na mezimolekul\u00e1rn\u00edch sil\u00e1ch, kter\u00e9 je dr\u017e\u00ed pohromad\u011b. M\u011b\u0159en\u00ed CTE lze prov\u00e1d\u011bt bu\u010f konkr\u00e9tn\u011b p\u0159i jedn\u00e9 teplot\u011b, nebo v n\u011bkolika teplotn\u00edch rozmez\u00edch, aby se z\u00edskal st\u0159edn\u00ed koeficient (a). CTE m\u016f\u017ee b\u00fdt tak\u00e9 ovlivn\u011bna vn\u011bj\u0161\u00edmi vlivy, jako je tlak, magnetick\u00e9 pole a elektrick\u00e9 pole, kter\u00e9 m\u011bn\u00ed uspo\u0159\u00e1d\u00e1n\u00ed atom\u016f v materi\u00e1lu.<\/p>\n
Oxid hlinit\u00fd (Al2O3) je um\u011bl\u00e1 keramika s chemick\u00fdm slo\u017een\u00edm Al2O3. Mezi jeho vlastnosti pat\u0159\u00ed vysok\u00e1 mechanick\u00e1 pevnost, tvrdost, odolnost proti opot\u0159eben\u00ed a je jedn\u00edm ze dvou nejtvrd\u0161\u00edch technick\u00fdch materi\u00e1l\u016f (druh\u00fd po karbidu k\u0159em\u00edku). D\u00edky t\u011bmto vlastnostem je oxid hlinit\u00fd ide\u00e1ln\u00ed pro aplikace v\u010detn\u011b za\u0159\u00edzen\u00ed pro vysok\u00e9 vakuum, vojensk\u00fdch aplikac\u00ed a leteck\u00fdch sou\u010d\u00e1st\u00ed - a tak\u00e9 je vhodn\u00fd pro metalizaci d\u00edky sv\u00fdm vynikaj\u00edc\u00edm vlastnostem odolnosti v\u016f\u010di korozi a teplu.<\/p>\n
Pochopen\u00ed rozd\u00edl\u016f v hodnot\u00e1ch CTE r\u016fzn\u00fdch materi\u00e1l\u016f p\u0159i jejich v\u00fdb\u011bru pro aplikaci je nesm\u00edrn\u011b d\u016fle\u017eit\u00e9. Hlin\u00edk m\u00e1 mnohem vy\u0161\u0161\u00ed hodnotu CTE ne\u017e m\u011b\u010f, co\u017e by mohlo zp\u016fsobit komplikace p\u0159i spojov\u00e1n\u00ed r\u016fznorod\u00fdch kov\u016f v aplikac\u00edch, jako jsou elektrick\u00e9 kabely, kde by dilata\u010dn\u00ed s\u00edly mohly zp\u016fsobit \u0161kodliv\u00e9 s\u00edly ve spoj\u00edch a v\u00e9st k destruktivn\u00edm sil\u00e1m uvnit\u0159 spoj\u016f.<\/p>\n
Pro minimalizaci t\u011bchto vliv\u016f je nejlep\u0161\u00ed volit kovy s n\u00edzk\u00fdmi hodnotami CTE a vz\u00edt na v\u011bdom\u00ed, \u017ee n\u011bkter\u00e9 materi\u00e1ly se rozp\u00ednaj\u00ed \u00fam\u011brn\u011b teplot\u011b; to znamen\u00e1, \u017ee pokud by se teplota zdvojn\u00e1sobila, tento materi\u00e1l by se rozp\u00ednal \u010dty\u0159ikr\u00e1t!<\/p>\n
Line\u00e1rn\u00ed tepeln\u00e1 rozta\u017enost (LTE) je z\u00e1kladn\u00ed charakteristikou materi\u00e1l\u016f, proto\u017ee souvis\u00ed s jejich modulem pru\u017enosti, Youngov\u00fdm modulem a plochou pr\u016f\u0159ezu. Krom\u011b toho m\u00e1 LTE vliv tak\u00e9 na bezdeforma\u010dn\u00ed teplotu Tref a lze ji stanovit pomoc\u00ed diferen\u010dn\u00ed termick\u00e9 anal\u00fdzy (DTA).<\/p>\n
Pro stanoven\u00ed line\u00e1rn\u00ed tepeln\u00e9 rozta\u017enosti materi\u00e1l\u016f se zku\u0161ebn\u00ed vzorky zmraz\u00ed a zm\u011b\u0159\u00ed se jejich rozm\u011brov\u00e9 zm\u011bny; tyto v\u00fdsledky se pak porovnaj\u00ed s p\u016fvodn\u00edmi hodnotami a zjist\u00ed se hodnota koeficientu tepeln\u00e9 rozta\u017enosti (CTE). V\u00fdsledky CTE z\u00e1vis\u00ed na r\u016fzn\u00fdch faktorech, v\u010detn\u011b slo\u017een\u00ed a geometrie vzorku, technik m\u011b\u0159en\u00ed d\u00e9lky a teploty a tak\u00e9 na standardn\u00edch nebo p\u0159ijat\u00fdch hodnot\u00e1ch CTE.<\/p>\n
Young\u016fv modul m\u011b\u0159\u00ed odolnost materi\u00e1l\u016f proti ohybu nebo tlaku. In\u017een\u00fd\u0159i tuto vlastnost vyu\u017e\u00edvaj\u00ed p\u0159i navrhov\u00e1n\u00ed konstrukc\u00ed tak, aby odol\u00e1valy p\u0159im\u011b\u0159en\u00fdm \u00farovn\u00edm nam\u00e1h\u00e1n\u00ed, a pou\u017e\u00edv\u00e1 se tak\u00e9 jako metoda hodnocen\u00ed jejich elastick\u00fdch vlastnost\u00ed - aby se ujistili, \u017ee vydr\u017e\u00ed opakovan\u00e9 pou\u017e\u00edv\u00e1n\u00ed v n\u00e1ro\u010dn\u00fdch podm\u00ednk\u00e1ch.<\/p>\n
K v\u00fdpo\u010dtu Youngova modulu pou\u017e\u00edvaj\u00ed in\u017een\u00fd\u0159i n\u011bkolik zku\u0161ebn\u00edch p\u0159\u00edstroj\u016f. Nejprve zm\u011b\u0159\u00ed r\u016fzn\u00e9 pr\u016fm\u011bry materi\u00e1lu a provedou m\u011b\u0159en\u00ed v n\u011bkolika bodech, aby stanovili p\u0159esnou z\u00e1kladn\u00ed hodnotu, kter\u00e1 se pou\u017eije pro dal\u0161\u00ed v\u00fdpo\u010dty. D\u00e1le deforma\u010dn\u00ed zkou\u0161ky umo\u017e\u0148uj\u00ed in\u017een\u00fdr\u016fm zjistit, jak r\u016fzn\u00e9 s\u00edly ovliv\u0148uj\u00ed reakci materi\u00e1lu za r\u016fzn\u00fdch okolnost\u00ed.<\/p>\n
Po vyhodnocen\u00ed sv\u00fdch zji\u0161t\u011bn\u00ed in\u017een\u00fd\u0159i vypo\u010d\u00edtaj\u00ed Young\u016fv modul materi\u00e1lu porovn\u00e1n\u00edm jeho hodnot se standardn\u00edmi referen\u010dn\u00edmi hodnotami. Toto ur\u010den\u00ed uk\u00e1\u017ee, zda jeho schopnost pohlcovat nap\u011bt\u00ed m\u016f\u017ee odolat norm\u00e1lov\u00e9mu nam\u00e1h\u00e1n\u00ed, nebo zda jeho k\u0159ehkost vylu\u010duje pou\u017eit\u00ed v konstruk\u010dn\u00edch aplikac\u00edch.<\/p>\n
Young\u016fv modul oxidu hlinit\u00e9ho cte z\u00e1vis\u00ed na n\u011bkolika prom\u011bnn\u00fdch, v\u010detn\u011b teploty, slo\u017een\u00ed slitiny a krystalov\u00e9 struktury. Obecn\u011b se vyjad\u0159uje jako funkce deformace, kter\u00e1 na n\u011bj p\u016fsob\u00ed; konkr\u00e9tn\u011b frac LL0\/frac EE(LL)2.<\/p>\n
Hlin\u00edk a zirkon jsou materi\u00e1ly, kter\u00e9 se d\u00edky sv\u00e9 pevnosti, trvanlivosti, vysok\u00e9 teplotn\u00ed toleranci a odolnosti proti korozi a ot\u011bru hojn\u011b vyu\u017e\u00edvaj\u00ed v letectv\u00ed, automobilov\u00e9m pr\u016fmyslu a pr\u016fmyslov\u00fdch v\u00fdrobc\u00edch.<\/p>\n
Hlin\u00edk m\u00e1 mezi sv\u00fdmi atomy silnou iontovou vazbu, kter\u00e1 mu prop\u016fj\u010duje \u017e\u00e1douc\u00ed materi\u00e1lov\u00e9 vlastnosti. A\u010dkoli p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch existuje v\u00edce krystalick\u00fdch f\u00e1z\u00ed, v\u011bt\u0161ina z nich pom\u011brn\u011b rychle p\u0159ech\u00e1z\u00ed do hexagon\u00e1ln\u00ed alfa f\u00e1ze, co\u017e vede k vytvo\u0159en\u00ed pevn\u00e9ho a tuh\u00e9ho keramick\u00e9ho materi\u00e1lu, kter\u00fd se \u010dasto pou\u017e\u00edv\u00e1 v konstruk\u010dn\u00edch aplikac\u00edch.<\/p>\n
Modul pru\u017enosti oxidu hlinit\u00e9ho je p\u0159ibli\u017en\u011b 69 gigapascal\u016f (GPa). Tato hodnota byla ov\u011b\u0159ena experiment\u00e1ln\u00edmi m\u011b\u0159en\u00edmi, teoretick\u00fdmi v\u00fdpo\u010dty a simulacemi; jeho p\u0159esn\u00e1 hodnota se v\u0161ak m\u016f\u017ee li\u0161it v z\u00e1vislosti na zp\u016fsobu zpracov\u00e1n\u00ed a v\u00fdroby.<\/p>\n
Hlin\u00edkov\u00e1 keramika je v\u0161estrann\u00e1 technick\u00e1 keramika s vynikaj\u00edc\u00ed odolnost\u00ed proti korozi a opot\u0159eben\u00ed, mimo\u0159\u00e1dnou mechanickou pevnost\u00ed a odol\u00e1v\u00e1 n\u00e1ro\u010dn\u00fdm podm\u00ednk\u00e1m od zemn\u00edch prac\u00ed a aplikac\u00ed pro p\u0159enos materi\u00e1lu a\u017e po vysokoteplotn\u00ed pece a v\u00fdhn\u011b. Hlin\u00edkov\u00e1 keramika pou\u017e\u00edvan\u00e1 v t\u011bchto prost\u0159ed\u00edch obvykle vykazuje p\u0159izp\u016fsoben\u00e9 mikrostruktury a slo\u017een\u00ed p\u0159izp\u016fsoben\u00e9 konkr\u00e9tn\u011b pro dan\u00fd \u00fakol - d\u00edky t\u011bmto vlastnostem je hlin\u00edkov\u00e1 keramika preferovan\u00fdm \u0159e\u0161en\u00edm pro mnoho n\u00e1ro\u010dn\u00fdch aplikac\u00ed.<\/p>\n
P\u00f3rotvorn\u00e1 \u010dinidla pou\u017e\u00edvan\u00e1 p\u0159i v\u00fdrob\u011b korundov\u00e9 keramiky mohou m\u00edt obrovsk\u00fd vliv na jej\u00ed tepeln\u00e9 chov\u00e1n\u00ed, nap\u0159\u00edklad typy \u0161krobu pou\u017e\u00edvan\u00e9 pro tvorbu. V\u00fdsledky t\u00e9to studie ukazuj\u00ed, \u017ee tyto materi\u00e1ly vykazuj\u00ed r\u016fzn\u00e9 \u00farovn\u011b p\u00f3rovitosti a velikosti p\u00f3r\u016f, pokud jsou vyrobeny z bramborov\u00e9ho, p\u0161eni\u010dn\u00e9ho a kuku\u0159i\u010dn\u00e9ho \u0161krobu - p\u0159i\u010dem\u017e ka\u017ed\u00fd pr\u00e1\u0161ek m\u00e1 tak\u00e9 r\u016fznou hustotu, kter\u00e1 ovliv\u0148uje tepelnou vodivost.<\/p>\n
Za \u00fa\u010delem zkoum\u00e1n\u00ed vlivu p\u00f3rotvorn\u00e9ho \u010dinidla na tepeln\u00e9 vlastnosti oxidu hlinit\u00e9ho cte byly p\u0159ipraveny t\u0159i povlaky s pou\u017eit\u00edm r\u016fzn\u00fdch pr\u00e1\u0161k\u016f a parametr\u016f n\u00e1st\u0159iku s c\u00edlem prozkoumat jeho vliv na tepeln\u011b izola\u010dn\u00ed vlastnosti. Nast\u0159\u00edkan\u00e9 vzorky pak byly podrobeny tepeln\u011bizola\u010dn\u00edm zkou\u0161k\u00e1m, kter\u00e9 odhalily, \u017ee povlaky s hrub\u00fdmi a st\u0159edn\u00edmi \u010d\u00e1sticemi vykazuj\u00ed ni\u017e\u0161\u00ed tepelnou izolaci ne\u017e povlaky s jemn\u00fdmi \u010d\u00e1sticemi; nav\u00edc tyto keramiky vyroben\u00e9 z hrub\u00fdch a st\u0159edn\u00edch pr\u00e1\u0161k\u016f m\u011bly v\u00edce neroztaven\u00fdch \u010d\u00e1stic a nepravideln\u00e9 rozlo\u017een\u00ed velikosti p\u00f3r\u016f ne\u017e jejich prot\u011bj\u0161ky s jemn\u00fdmi \u010d\u00e1sticemi.<\/p>\n
Tyto v\u00fdsledky ukazuj\u00ed, \u017ee p\u00f3rotvorn\u00e9 l\u00e1tky a velikost \u010d\u00e1stic v\u00fdchoz\u00edho pr\u00e1\u0161ku hraj\u00ed v\u00fdznamnou roli p\u0159i charakterizaci por\u00e9zn\u00ed keramiky z oxidu hlinit\u00e9ho, proto\u017ee jejich velikost, tvar a rozlo\u017een\u00ed hraj\u00ed ned\u00edlnou roli v tepeln\u00fdch vlastnostech povlaku, jako jsou izola\u010dn\u00ed vlastnosti.<\/p>\n
Hodnotili jsme nejen l\u00e1tky vytv\u00e1\u0159ej\u00edc\u00ed p\u00f3ry a velikost \u010d\u00e1stic, ale tak\u00e9 jsme pou\u017eili rentgenovou pr\u00e1\u0161kovou difrakci k anal\u00fdze morfologie 3D struktury AAO. V\u00fdsledky rentgenov\u00e9ho vy\u0161et\u0159en\u00ed potvrdily existenci pod\u00e9ln\u00fdch p\u00f3r\u016f v 3D membr\u00e1n\u00e1ch z oxidu hlinit\u00e9ho i p\u0159\u00ed\u010dn\u00fdch nanokan\u00e1lk\u016f; jejich d\u00e9lka ovliv\u0148uje tepelnou vodivost i pou\u017eit\u00fd materi\u00e1l plniva.<\/p>\n
Hlin\u00edk je pokro\u010dil\u00fd technick\u00fd keramick\u00fd materi\u00e1l, kter\u00fd se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch. Vyzna\u010duje se vynikaj\u00edc\u00edmi mechanick\u00fdmi a elektrick\u00fdmi vlastnostmi, d\u00edky nim\u017e je vhodn\u00fd pro p\u0159esn\u00e9 t\u011bsnic\u00ed aplikace v prost\u0159ed\u00ed s vysok\u00fdmi teplotami a d\u00edky extr\u00e9mn\u011b n\u00edzk\u00e9 p\u00f3rovitosti a velk\u00e9 velikosti zrn nab\u00edz\u00ed i vynikaj\u00edc\u00ed izola\u010dn\u00ed vlastnosti. Hlin\u00edk je chemicky inertn\u00ed a odoln\u00fd v\u016f\u010di korozi.<\/p>\n
Mezi mechanick\u00e9 vlastnosti oxidu hlinit\u00e9ho pat\u0159\u00ed tak\u00e9 jeho odolnost proti ot\u011bru, tvrdost a pevnost v ohybu - \u010dasto p\u0159esahuj\u00edc\u00ed 160 MPa v tahu a 280 MPa v ohybu - stanoven\u00e9 na z\u00e1klad\u011b zkou\u0161ek za stanoven\u00fdch podm\u00ednek. Pevnost v tahu za ohybu m\u011b\u0159\u00ed schopnost materi\u00e1lu deformovat se p\u0159i zat\u00ed\u017een\u00ed; pro p\u0159esn\u00e9 posouzen\u00ed t\u011bchto vlastnost\u00ed se pevnost v tahu a pevnost v tahu za ohybu m\u011b\u0159\u00ed p\u0159\u00edm\u00fdm p\u016fsoben\u00edm nap\u011bt\u00ed a m\u011b\u0159en\u00edm deformace v m\u00edst\u011b poru\u0161en\u00ed.<\/p>\n
Fyzik\u00e1ln\u00ed vlastnosti oxidu hlinit\u00e9ho se mohou li\u0161it v z\u00e1vislosti na jeho \u010distot\u011b a v\u00fdrobn\u00edm procesu. Reaktivn\u00ed oxid hlinit\u00fd m\u00e1 ni\u017e\u0161\u00ed teplotu t\u00e1n\u00ed a vy\u0161\u0161\u00ed hustotu ne\u017e b\u011b\u017en\u00fd oxid hlinit\u00fd a tento rozd\u00edl m\u016f\u017ee v\u00fdznamn\u011b ovlivnit v\u00fdrobu, procesy pou\u017eit\u00ed i v\u00fdkonnost v\u00fdrobku.<\/p>\n
Jemnozrnn\u00fd technick\u00fd oxid hlinit\u00fd je jedn\u00edm z hlavn\u00edch tahoun\u016f pr\u016fmyslu a poskytuje atraktivn\u00ed rovnov\u00e1hu mezi n\u00e1klady a v\u00fdkonem. Dostupn\u00e9 stupn\u011b \u010distoty se pohybuj\u00ed od 94% pro aplikace se snadnou kovatelnost\u00ed a\u017e po 99,8%, kter\u00e9 spl\u0148uj\u00ed i n\u00e1ro\u010dn\u00e9 po\u017eadavky aplikac\u00ed.<\/p>\n
Keramick\u00fd materi\u00e1l v zelen\u00e9m nebo su\u0161enkov\u00e9m stavu lze snadno opracovat do slo\u017eit\u00fdch geometrick\u00fdch tvar\u016f. Bohu\u017eel proces sp\u00e9k\u00e1n\u00ed, kter\u00fd je nutn\u00fd k jeho \u00fapln\u00e9mu zhutn\u011bn\u00ed, zp\u016fsobuje jeho smr\u0161t\u011bn\u00ed p\u0159ibli\u017en\u011b o 20%; dosa\u017een\u00ed t\u011bsn\u00fdch toleranc\u00ed proto vy\u017eaduje p\u0159esn\u00e9 obr\u00e1b\u011bn\u00ed pomoc\u00ed diamantov\u00e9ho brou\u0161en\u00ed, kter\u00e9 m\u016f\u017ee b\u00fdt \u010dasov\u011b i finan\u010dn\u011b n\u00e1ro\u010dn\u00e9.<\/p>\n
Obrobiteln\u00e1 sklokeramika Macor m\u016f\u017ee p\u0159edstavovat cenov\u011b v\u00fdhodnou alternativu v p\u0159\u00edpadech, kdy v\u00fdkonnost oxidu hlinit\u00e9ho nen\u00ed prvo\u0159ad\u00e1. Macor m\u00e1 srovnatelnou pevnost v ohybu a tepelnou vodivost, ale m\u00e1 v\u011bt\u0161\u00ed velikost zrn; proto m\u016f\u017ee m\u00edt men\u0161\u00ed odolnost proti od\u011bru a \u0161patn\u011b funguje v prost\u0159ed\u00edch, kde doch\u00e1z\u00ed k rychl\u00fdm cykl\u016fm zah\u0159\u00edv\u00e1n\u00ed\/ochlazov\u00e1n\u00ed.<\/p>\n
<\/p>","protected":false},"excerpt":{"rendered":"
Alumina cte is an advanced refractory material with superior adhesiveness that can be easily formed into near net shapes using […]<\/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-84","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\/84","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=84"}],"version-history":[{"count":3,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/84\/revisions"}],"predecessor-version":[{"id":188,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/84\/revisions\/188"}],"wp:attachment":[{"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/media?parent=84"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/categories?post=84"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/tags?post=84"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}