{"id":65,"date":"2024-05-21T13:58:21","date_gmt":"2024-05-21T05:58:21","guid":{"rendered":"https:\/\/aluminaceramics.net\/?p=65"},"modified":"2024-07-15T20:26:29","modified_gmt":"2024-07-15T12:26:29","slug":"co-je-to-hlinik-2","status":"publish","type":"post","link":"https:\/\/aluminaceramics.net\/cs\/what-is-aluminum-2\/","title":{"rendered":"Co je hlin\u00edk?"},"content":{"rendered":"<p>Hlin\u00edk je jedn\u00edm z nejpou\u017e\u00edvan\u011bj\u0161\u00edch ne\u017eelezn\u00fdch kov\u016f na sv\u011bt\u011b, od plechovek na limon\u00e1du po n\u00e1razn\u00edky automobil\u016f, a m\u00e1 i l\u00e9\u010div\u00e9 vlastnosti.<\/p>\n<p>Hlavn\u00edm zdrojem oxidu hlinit\u00e9ho je bauxit, t\u011b\u017eebn\u00ed nerost. Tento proces, naz\u00fdvan\u00fd \"taven\u00ed bauxitu\", z\u00edsk\u00e1v\u00e1 tento oxid z rudy.<\/p>\n<h2>Je to p\u0159irozen\u00fd prvek<\/h2>\n<p>Hlin\u00edk je jedn\u00edm z nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00edch prvk\u016f, kter\u00fd je obsa\u017een v mnoha v\u00fdrobc\u00edch od n\u00e1pojov\u00fdch plechovek p\u0159es f\u00f3lie, kuchy\u0148sk\u00e9 n\u00e1\u010din\u00ed, okenn\u00ed r\u00e1my a\u017e po sou\u010d\u00e1sti letadel. Vlastnosti hlin\u00edku umo\u017e\u0148uj\u00ed jeho m\u011bkkost, lehkost, ta\u017enost, odolnost proti korozi a netoxick\u00e9 vlastnosti ho \u010din\u00ed ekonomick\u00fdm a univerz\u00e1ln\u00edm - snadno se tvaruje do slo\u017eit\u00fdch tvar\u016f odl\u00e9v\u00e1n\u00edm nebo obr\u00e1b\u011bn\u00edm; jeho kujnost ho \u0159ad\u00ed na druh\u00e9 m\u00edsto ze v\u0161ech kov\u016f, zat\u00edmco jeho ta\u017enost na \u0161est\u00e9 m\u00edsto ze v\u0161ech; nav\u00edc jeho schopnost snadno se kombinovat tvo\u0159\u00ed r\u016fzn\u00e9 slitiny a vytv\u00e1\u0159et nov\u00e9 slitiny z jin\u00fdch kov\u016f \u010din\u00ed z hlin\u00edku jeden z nejuniverz\u00e1ln\u011bj\u0161\u00edch prvk\u016f sou\u010dasnosti!<\/p>\n<p>Hlin\u00edk m\u00e1 atomov\u00e9 \u010d\u00edslo 13 a nach\u00e1z\u00ed se ve t\u0159in\u00e1ct\u00e9 period\u011b periodick\u00e9 tabulky prvk\u016f. Jako kov po p\u0159echodu se t\u0159emi valen\u010dn\u00edmi elektrony je hlin\u00edk chemicky pom\u011brn\u011b reaktivn\u00ed a p\u0159i okoln\u00ed teplot\u011b pevn\u00fd; jeho vodivost mu umo\u017e\u0148uje \u00fa\u010dinn\u011b slou\u017eit pot\u0159eb\u00e1m tepla i elekt\u0159iny; nav\u00edc je dobr\u00fdm izolantem proti korozi; \u010dist\u00fd hlin\u00edk se jev\u00ed jako m\u011bkk\u00fd a st\u0159\u00edb\u0159it\u00fd a p\u0159irozen\u011b odol\u00e1v\u00e1 oxidaci vzduchem, kter\u00e1 na jeho povrchu vytv\u00e1\u0159\u00ed ochrann\u00e9 vrstvy oxid\u016f.<\/p>\n<p>Hlin\u00edk je zn\u00e1m\u00fd ji\u017e od dob starov\u011bk\u00e9ho Egypta a Mezopot\u00e1mie, kde se pou\u017e\u00edval v barvivech a le\u0161tic\u00edch prost\u0159edc\u00edch pro zv\u00fdrazn\u011bn\u00ed barev. Plinius Star\u0161\u00ed o jeho pou\u017eit\u00ed psal ve sv\u00e9 encyklopedii ji\u017e v roce 2 n. l.<\/p>\n<p>A\u010dkoli byl hlin\u00edk v\u011bdc\u016fm zn\u00e1m ji\u017e dlouho, jeho masov\u00e1 t\u011b\u017eba za\u010dala a\u017e v 19. stolet\u00ed. Hans Christian Oersted vyrobil v roce 1825 mal\u00e9 mno\u017estv\u00ed roztoku s\u00edranu hlinito-draseln\u00e9ho elektrol\u00fdzou; Humphrey Davy tento nov\u00fd prvek nejprve pojmenoval \"alumium\", pozd\u011bji ho zm\u011bnil na hlin\u00edk; nakonec v roce 1925 Americk\u00e1 chemick\u00e1 spole\u010dnost tento n\u00e1zev pro tento kov ofici\u00e1ln\u011b p\u0159ijala.<\/p>\n<p>Hlin\u00edk se v p\u0159\u00edrod\u011b nevyskytuje jako samostatn\u00fd prvek, ale lze ho nal\u00e9zt v\u00e1zan\u00fd na jin\u00e9 prvky v miner\u00e1lech a hornin\u00e1ch, nap\u0159\u00edklad v bauxitov\u00e9 rud\u011b, kter\u00e1 se na n\u011bj t\u011b\u017e\u00ed. \u010cist\u00fd hlin\u00edk je p\u0159\u00edli\u0161 reaktivn\u00ed pro pou\u017eit\u00ed v p\u0159\u00edrod\u011b, ale snadno se spojuje s kysl\u00edkem a dal\u0161\u00edmi prvky, kter\u00e9 se nach\u00e1zej\u00ed v zemsk\u00e9 k\u016f\u0159e.<\/p>\n<h2>Jedn\u00e1 se o kov<\/h2>\n<p>Hlin\u00edk s atomov\u00fdm \u010d\u00edslem 13 je jedn\u00edm ze t\u0159\u00ed nejroz\u0161\u00ed\u0159en\u011bj\u0161\u00edch prvk\u016f na Zemi. D\u00edky n\u00edzk\u00e9 hustot\u011b a vynikaj\u00edc\u00edm mechanick\u00fdm vlastnostem a odolnosti proti korozi se hlin\u00edk \u0161iroce pou\u017e\u00edv\u00e1 jak v pr\u016fmyslu, tak jako sou\u010d\u00e1st v\u00fdrobk\u016f pro dom\u00e1cnost nebo p\u0159edm\u011bt\u016f pro dom\u00e1cnost, jako jsou vozidla, vlaky a letadla.<\/p>\n<p>\u010cist\u00fd hlin\u00edk je v p\u0159\u00edrod\u011b t\u011b\u017eko dostupn\u00fd, proto\u017ee reaguje s kysl\u00edkem za vzniku slou\u010deniny oxidu hlinit\u00e9ho, tak\u017ee z\u00edsk\u00e1v\u00e1n\u00ed hlin\u00edku vy\u017eaduje t\u011b\u017ebu bauxitu ze zem\u011b a jeho zpracov\u00e1n\u00ed pomoc\u00ed drti\u010d\u016f bauxitu p\u0159ed rozdrcen\u00edm a sm\u00edch\u00e1n\u00edm s hl\u00ednou a oxidem k\u0159emi\u010dit\u00fdm pro zah\u0159\u00e1t\u00ed v peci a n\u00e1slednou filtraci za vzniku roztaven\u00e9ho oxidu hlinit\u00e9ho, kter\u00fd slou\u017e\u00ed jako surovina pro r\u016fzn\u00e9 v\u00fdrobky.<\/p>\n<p>Z hlin\u00edku lze pak vyrobit \u010dist\u00fd hlin\u00edk. Tato forma neobsahuje \u017e\u00e1dn\u00e9 leguj\u00edc\u00ed prvky a m\u00e1 n\u00edzk\u00fd obsah ne\u010distot; lze ji nal\u00e9zt v mnoha slitin\u00e1ch v\u010detn\u011b pl\u00e1tovan\u00e9ho hlin\u00edku. \u010cist\u00fd hlin\u00edk je d\u016fle\u017eitou slo\u017ekou potravin\u00e1\u0159sk\u00fdch obal\u016f a kuchy\u0148sk\u00e9ho n\u00e1\u010din\u00ed a d\u00edky sv\u00fdm lehk\u00fdm pevnostn\u00edm vlastnostem se tak\u00e9 hojn\u011b vyu\u017e\u00edv\u00e1 v automobilov\u00e9m a leteck\u00e9m pr\u016fmyslu.<\/p>\n<p>Existuje a\u017e 100 r\u016fzn\u00fdch slitin hlin\u00edku, z nich\u017e ka\u017ed\u00e1 je p\u0159izp\u016fsobena specifick\u00fdm po\u017eadavk\u016fm pr\u016fmyslu. Jejich \u0161k\u00e1la sah\u00e1 od tepeln\u011b zpracovan\u00fdch a sva\u0159iteln\u00fdch slitin p\u0159es tepeln\u00e9 zpracov\u00e1n\u00ed, sva\u0159ov\u00e1n\u00ed nebo metody bez tepeln\u00e9ho zpracov\u00e1n\u00ed; v\u0161echny za\u010d\u00ednaj\u00ed jako takto zpracovan\u00fd bauxit a nakonec obsahuj\u00ed prvky k\u0159em\u00edku a ho\u0159\u010d\u00edku, aby vytvo\u0159ily pevn\u011bj\u0161\u00ed slitiny schopn\u00e9 odol\u00e1vat vysok\u00fdm teplot\u00e1m; mezi nimi jsou 6xxx a 7xxx, kter\u00e9 se \u010dasto pou\u017e\u00edvaj\u00ed p\u0159i v\u00fdrob\u011b komer\u010dn\u00edch letadel.<\/p>\n<p>Hlin\u00edk je neuv\u011b\u0159iteln\u011b flexibiln\u00ed kov, kter\u00fd lze pou\u017e\u00edt v doprav\u011b, stavebnictv\u00ed, stavebnictv\u00ed, v\u00fdrob\u011b a letectv\u00ed. D\u00edky snadn\u00e9 opracovatelnosti, odolnosti proti korozi a n\u00edzk\u00e9 hmotnosti je hlin\u00edk ide\u00e1ln\u00ed pro pou\u017eit\u00ed v dopravn\u00edch prost\u0159edc\u00edch, kde sni\u017euje spot\u0159ebu paliva a emise uhl\u00edku; pro balen\u00ed n\u00e1poj\u016f a potravin se pou\u017e\u00edv\u00e1 jako st\u0159e\u0161n\u00ed krytina pro okna a d\u00edky sv\u00e9 n\u00edzk\u00e9 hmotnosti je vhodn\u00fd i pro v\u00fdrobu leteck\u00fdch komponent\u016f.<\/p>\n<h2>Jedn\u00e1 se o slitinu<\/h2>\n<p>Hlin\u00edk je prvek, kter\u00fd lze kombinovat s jin\u00fdmi prvky a vytv\u00e1\u0159et z n\u011bj slitiny, kter\u00e9 jsou ned\u00edlnou sou\u010d\u00e1st\u00ed modern\u00edho \u017eivota, od plechovek na limon\u00e1du a letadel a\u017e po automobily a plechovky na limon\u00e1du. M\u011bkk\u00e1 struktura a nedostate\u010dn\u00e1 pevnost hlin\u00edku jej \u010din\u00ed nevhodn\u00fdm pro n\u011bkter\u00e9 aplikace, ale po slit\u00ed s jin\u00fdmi kovy se st\u00e1v\u00e1 mnohem pevn\u011bj\u0161\u00edm. Jedna takov\u00e1 slitina, 7075, je obl\u00edben\u00e1 mezi vojensk\u00fdmi \u0159emesly d\u00edky pom\u011bru pevnosti a hmotnosti ve srovn\u00e1n\u00ed s ocel\u00ed; nav\u00edc poskytuje vynikaj\u00edc\u00ed odolnost proti \u00fanav\u011b a obrobitelnost, co\u017e z n\u00ed \u010din\u00ed vynikaj\u00edc\u00ed volbu. Tak\u00e9 dal\u0161\u00ed hlin\u00edkov\u00e9 slitiny, jako je \u0159ada 6000, se mohou pochlubit \u00fa\u017easn\u00fdmi vlastnostmi v oblasti pevnosti a odolnosti proti korozi.<\/p>\n<p>V r\u00e1mci procesu v\u00fdroby hlin\u00edku je t\u0159eba nejprve odstranit ne\u010distoty z bauxitov\u00e9 suroviny pomoc\u00ed chemick\u00fdch roztok\u016f, kter\u00e9 je rozpou\u0161t\u011bj\u00ed. Po tomto kroku lze hlin\u00edk odd\u011blit a roztavit v peci, \u010d\u00edm\u017e vznikne ingot, kter\u00fd lze d\u00e1le zpracovat v\u00e1lcov\u00e1n\u00edm, vytla\u010dov\u00e1n\u00edm nebo odl\u00e9v\u00e1n\u00edm do plech\u016f pro dal\u0161\u00ed pou\u017eit\u00ed.<\/p>\n<p>Slitiny lze zpev\u0148ovat zpracov\u00e1n\u00edm za studena, legov\u00e1n\u00edm a tepeln\u00fdm zpracov\u00e1n\u00edm. Pro zlep\u0161en\u00ed pevnosti, odl\u00e9vac\u00edch vlastnost\u00ed a odolnosti slitiny proti korozi lze p\u0159id\u00e1vat p\u0159\u00edsady, jako je k\u0159em\u00edk a ho\u0159\u010d\u00edk.<\/p>\n<p>V\u0161echny slitiny hlin\u00edku lze klasifikovat na z\u00e1klad\u011b p\u0159\u00edtomn\u00fdch leguj\u00edc\u00edch prvk\u016f a jejich mno\u017estv\u00ed. Prvn\u00ed \u010d\u00edslice jejich \u010d\u00edseln\u00e9ho ozna\u010den\u00ed ur\u010duje skupinu slitin, zat\u00edmco posledn\u00ed dv\u011b \u010d\u00edslice ozna\u010duj\u00ed obsah ne\u010distot. Lze je tak\u00e9 d\u00e1le rozd\u011blit na z\u00e1klad\u011b hlavn\u00edch pou\u017eit\u00fdch leguj\u00edc\u00edch prvk\u016f a jejich mno\u017estv\u00ed a pot\u00e9 d\u00e1le rozd\u011blit na z\u00e1klad\u011b t\u011bchto stup\u0148\u016f pou\u017eit\u00fdch prvk\u016f.<\/p>\n<p>Hlin\u00edk je d\u00edky sv\u00e9 n\u00edzk\u00e9 m\u011brn\u00e9 hmotnosti objemov\u011b v\u00fdrazn\u011b leh\u010d\u00ed ne\u017e v\u011bt\u0161ina ostatn\u00edch kov\u016f, tak\u017ee manipulace s n\u00edm a jeho p\u0159eprava jsou ve srovn\u00e1n\u00ed s mnoha jin\u00fdmi kovy mnohem jednodu\u0161\u0161\u00ed a levn\u011bj\u0161\u00ed. Krom\u011b toho m\u00e1 d\u00edky sv\u00e9 elektrick\u00e9 vodivosti a vynikaj\u00edc\u00ed odolnosti proti atmosf\u00e9rick\u00e9 korozi a korozi mnoho pr\u016fmyslov\u00fdch aplikac\u00ed, nap\u0159\u00edklad v automobilech, letadlech a v\u00fd\u0161kov\u00fdch stavb\u00e1ch.<\/p>\n<h2>Jedn\u00e1 se o odpadn\u00ed produkt<\/h2>\n<p>Hlin\u00edk je nesm\u00edrn\u011b u\u017eite\u010dn\u00fd materi\u00e1l, kter\u00fd se pou\u017e\u00edv\u00e1 v budov\u00e1ch, v\u00fdrobc\u00edch dlouhodob\u00e9 spot\u0159eby (jako jsou chladni\u010dky a kuchy\u0148sk\u00e9 n\u00e1dob\u00ed), elektrick\u00fdch vodi\u010d\u00edch a stavebn\u00edch materi\u00e1lech. V\u0161estrannost hlin\u00edku umo\u017e\u0148uje jeho \u0161irok\u00e9 vyu\u017eit\u00ed: ve stavebn\u00edch materi\u00e1lech, v\u00fdrobc\u00edch dlouhodob\u00e9 spot\u0159eby ( jako jsou chladni\u010dky a kuchy\u0148sk\u00e9 n\u00e1dob\u00ed), elektrick\u00fdch vodi\u010d\u00edch a \u010dasto se p\u0159id\u00e1v\u00e1 m\u00edrn\u00e9 mno\u017estv\u00ed jin\u00fdch kov\u016f a k\u0159em\u00edku, aby se zlep\u0161ily jeho vlastnosti pro konkr\u00e9tn\u00ed aplikace; hlin\u00edk se dokonce pou\u017e\u00edv\u00e1 v konstrukci letadel a ve vozidlech pro sn\u00ed\u017een\u00ed hmotnosti - v\u010detn\u011b automobil\u016f, j\u00edzdn\u00edch kol a letadel. Najdeme ho tak\u00e9 v obalech na potraviny a v obalech na potraviny a n\u00e1poje a ve f\u00f3li\u00edch, kter\u00e9 vyu\u017e\u00edvaj\u00ed jeho vlastnost\u00ed.<\/p>\n<p>Slitiny hlin\u00edku, kter\u00e9 se skl\u00e1daj\u00ed ze sm\u011bs\u00ed kombinuj\u00edc\u00edch hlin\u00edk s jin\u00fdmi kovy, se \u010dasto pou\u017e\u00edvaj\u00ed pro svou pevnost, tvrdost a odolnost a tak\u00e9 proto, \u017ee se snadn\u011bji formuj\u00ed ne\u017e kovy, jako je ocel a m\u011b\u010f. D\u00edky t\u011bmto v\u00fdhod\u00e1m je hlin\u00edk atraktivn\u00edm materi\u00e1lem pro v\u00fdrobky vy\u017eaduj\u00edc\u00ed lehk\u00e9 obaly, jako jsou plechovky od n\u00e1poj\u016f.<\/p>\n<p>V\u00fdroba hlin\u00edku zahrnuje slo\u017eit\u00fd proces, kter\u00fd zahrnuje t\u011b\u017ebu bauxitov\u00e9 rudy, jej\u00ed rafinaci za \u00fa\u010delem z\u00edsk\u00e1n\u00ed oxidu hlinit\u00e9ho a n\u00e1slednou tavbu za \u00fa\u010delem v\u00fdroby hlin\u00edku. T\u011b\u017eba bauxitu m\u016f\u017ee b\u00fdt velmi zne\u010di\u0161\u0165uj\u00edc\u00ed a vytv\u00e1\u0159et zna\u010dn\u00e9 mno\u017estv\u00ed odpadu; energeticky n\u00e1ro\u010dn\u00e9 zpracov\u00e1n\u00ed bauxitu m\u016f\u017ee nav\u00edc zp\u016fsobit protr\u017een\u00ed hr\u00e1z\u00ed, p\u0159i n\u011bm\u017e se do \u017eiv\u00fdch \u0159ek uvol\u0148uje toxick\u00e9 \u010derven\u00e9 bahno, kter\u00e9 vede k \u00fanik\u016fm.<\/p>\n<p>P\u0159esto\u017ee se hlin\u00edk v p\u0159\u00edrod\u011b nevyskytuje v \u010dist\u00e9 form\u011b, vyskytuje se v r\u016fzn\u00fdch form\u00e1ch v cel\u00e9 zemsk\u00e9 k\u016f\u0159e a tvo\u0159\u00ed p\u0159ibli\u017en\u011b 8% jej\u00ed hmotnosti. Vzhledem k jeho vysoce reaktivn\u00edm vlastnostem v\u0161ak \u010dist\u00e9 formy nelze tak snadno nal\u00e9zt, proto\u017ee se s n\u00edm snadno v\u00e1\u017ee kysl\u00edk.<\/p>\n<p>Hlin\u00edk se ve vodn\u00fdch roztoc\u00edch vyskytuje jako \u0161estivod\u00edkov\u00fd kationt Al3+ a v kysel\u00fdch roztoc\u00edch se rozpou\u0161t\u00ed za vzniku hydroxidu hlinit\u00e9ho, Al(OH)3, zat\u00edmco v alkalick\u00fdch roztoc\u00edch z\u016fst\u00e1v\u00e1 rozpustn\u00fd a\u017e do pH = 10, kdy se vysr\u00e1\u017e\u00ed jako miner\u00e1l alumin\u00e1t.<\/p>\n<p>Hlin\u00edk je nebezpe\u010dn\u00fd vedlej\u0161\u00ed produkt prim\u00e1rn\u00edho taven\u00ed hlin\u00edku, kter\u00fd se skl\u00e1d\u00e1 ze v\u0161ech materi\u00e1l\u016f vyzd\u00edvek komor, kter\u00e9 z\u016fst\u00e1vaj\u00ed v huti na hlin\u00edk, jako jsou bo\u010dn\u00ed uhl\u00edkov\u00e9 a karbidov\u00e9 bloky k\u0159em\u00edku, spodn\u00ed \u017e\u00e1ruvzdorn\u00e9 materi\u00e1ly a izola\u010dn\u00ed materi\u00e1ly, kter\u00e9 z\u016fst\u00e1vaj\u00ed po odstra\u0148ov\u00e1n\u00ed vyzd\u00edvek po cel\u00e9m sv\u011bt\u011b. Spr\u00e1vn\u00e1 likvidace z\u016fst\u00e1v\u00e1 jednou z nejv\u011bt\u0161\u00edch ekologick\u00fdch v\u00fdzev, kter\u00fdm dnes \u010del\u00ed sv\u011btov\u00e9 prim\u00e1rn\u00ed hut\u011b hlin\u00edku.<\/p>","protected":false},"excerpt":{"rendered":"<p>Aluminum is one of the world&#8217;s most-utilized nonferrous metals, ranging from soda cans to car bumpers and offering medicinal properties. [&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":[6],"tags":[],"class_list":["post-65","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\/65","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=65"}],"version-history":[{"count":1,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/65\/revisions"}],"predecessor-version":[{"id":66,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/65\/revisions\/66"}],"wp:attachment":[{"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/media?parent=65"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/categories?post=65"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/tags?post=65"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}