{"id":94,"date":"2024-06-04T13:36:53","date_gmt":"2024-06-04T05:36:53","guid":{"rendered":"https:\/\/aluminaceramics.net\/?p=94"},"modified":"2024-07-15T20:16:40","modified_gmt":"2024-07-15T12:16:40","slug":"younguv-modul-oxidu-hliniteho","status":"publish","type":"post","link":"https:\/\/aluminaceramics.net\/cs\/youngs-modulus-alumina\/","title":{"rendered":"Young\u016fv modul oxidu hlinit\u00e9ho"},"content":{"rendered":"<p>Oxid hlinit\u00fd je neoceniteln\u00fd keramick\u00fd materi\u00e1l, kter\u00fd je zn\u00e1m\u00fd svou vynikaj\u00edc\u00ed odolnost\u00ed proti oxidaci a vlastnostmi Youngova modulu. Vzhledem k vysok\u00e9 teplot\u011b pot\u0159ebn\u00e9 p\u0159i sp\u00e9k\u00e1n\u00ed v\u0161ak m\u016f\u017ee b\u00fdt drah\u00fdm materi\u00e1lem.<\/p>\n<p>P\u0159i pokojov\u00e9 teplot\u011b vykazuj\u00ed kompozity s \u010d\u00e1sticemi aluminy a YAG k\u0159ehk\u00e9 chov\u00e1n\u00ed s p\u0159ibli\u017enou pevnost\u00ed v ohybu p\u0159ibli\u017en\u011b 320 MPa. I p\u0159i teplot\u011b 1650 stup\u0148\u016f Celsia z\u016fst\u00e1v\u00e1 jejich mikrostruktura homogenn\u00ed s rovnom\u011brn\u011b rozm\u00edst\u011bn\u00fdmi zrny oxidu hlinit\u00e9ho a jemn\u00fdmi zrny druh\u00e9 f\u00e1ze tvo\u0159\u00edc\u00edmi atraktivn\u00ed mikrostrukturu.<\/p>\n<h2>Charakteristika<\/h2>\n<p>Young\u016fv modul oxidu hlinit\u00e9ho je neoceniteln\u00e1 vlastnost materi\u00e1lu, kter\u00e1 pom\u00e1h\u00e1 ur\u010dovat mechanickou pevnost keramick\u00fdch materi\u00e1l\u016f. Tento ukazatel hodnot\u00ed schopnost materi\u00e1lu odol\u00e1vat kolm\u00fdm sil\u00e1m, kter\u00e9 p\u016fsob\u00ed kolmo na sm\u011br jeho rozta\u017een\u00ed; jeho hodnota je definov\u00e1na jako sou\u010din elastick\u00e9 konstanty a smykov\u00e9 deformace a lze ji snadno vypo\u010d\u00edtat pomoc\u00ed jednoduch\u00e9ho vzorce. M\u011b\u0159en\u00ed Youngova modulu oxidu hlinit\u00e9ho lze mimo jin\u00e9 prov\u00e1d\u011bt tak\u00e9 pomoc\u00ed p\u0159\u00edstrojov\u00e9 nanoindentace, test\u016f rotace ukazatele a m\u011b\u0159en\u00ed pr\u016fhybu.<\/p>\n<p>Oxid hlinit\u00fd m\u00e1 obvykle relativn\u011b n\u00edzk\u00fd Young\u016fv modul, kter\u00fd v\u0161ak lze v\u00fdrazn\u011b zv\u00fd\u0161it pomoc\u00ed pokro\u010dil\u00fdch technik synt\u00e9zy, kter\u00e9 \u0159\u00edd\u00ed velikost a tvar granul\u00ed. Krom\u011b toho mohou ke zv\u00fd\u0161en\u00ed hodnot Youngova modulu p\u0159isp\u011bt i zm\u011bny hustoty b\u011bhem v\u00fdroby.<\/p>\n<p>Granule g-aluminu mohou nejen zlep\u0161it Young\u016fv modul, ale lze je tak\u00e9 vyu\u017e\u00edt pro r\u016fzn\u00e9 aplikace ve stomatologii a dal\u0161\u00edch odv\u011btv\u00edch. D\u00edky sv\u00e9 vysok\u00e9 tvrdosti a tuhosti jsou ide\u00e1ln\u00ed pro dent\u00e1ln\u00ed cementy a lze z nich dokonce vytv\u00e1\u0159et vlastn\u00ed v\u00fdpln\u011b, jako jsou d\u00fdhy.<\/p>\n<p>Young\u016fv modul oxidu hlinit\u00e9ho vykazuje silnou z\u00e1vislost na teplot\u011b. Pomoc\u00ed impulsn\u00edho buzen\u00ed byly sledov\u00e1ny zm\u011bny Youngova modulu u \u010d\u00e1ste\u010dn\u011b slinut\u00fdch vzork\u016f oxidu hlinit\u00e9ho zah\u0159\u00e1t\u00fdch od pokojov\u00e9 teploty a\u017e do 1600 \u00b0C, pot\u00e9 byly porovn\u00e1ny s teoretick\u00fdmi p\u0159edpov\u011b\u010fmi a bylo zji\u0161t\u011bno, \u017ee teplotn\u00ed z\u00e1vislost Youngova modulu se pro tento materi\u00e1l \u0159\u00edd\u00ed ide\u00e1ln\u00ed hlavn\u00ed k\u0159ivkou.<\/p>\n<p>Zobrazen\u00ed FESEM bylo rovn\u011b\u017e pou\u017eito ke zkoum\u00e1n\u00ed mikrostruktury sm\u011bsi korundov\u00e9 matrice a druh\u00e9 f\u00e1ze p\u0159i teplot\u00e1ch a\u017e 1700 stup\u0148\u016f Celsia, kdy nebyla pozorov\u00e1na \u017e\u00e1dn\u00e1 zm\u011bna mikrostruktury a byl zaznamen\u00e1n pouze mal\u00fd r\u016fst zrn - co\u017e nazna\u010duje, \u017ee jejich \u0161t\u011bpn\u00fd \u00fa\u010dinek z\u016fst\u00e1v\u00e1 \u00fa\u010dinn\u00fd i p\u0159i t\u011bchto teplot\u00e1ch.<\/p>\n<p>V\u00fdsledky zkou\u0161ek ohybu uk\u00e1zaly, \u017ee vzorky Vita In-Ceram z oxidu hlinit\u00e9ho m\u011bly v\u00fdrazn\u011b vy\u0161\u0161\u00ed hodnoty dynamick\u00e9ho Youngova modulu a skute\u010dn\u00e9 tvrdosti ve srovn\u00e1n\u00ed s IPS Empress 2 a dal\u0161\u00edmi komer\u010dn\u00edmi materi\u00e1ly pro j\u00e1dra, v\u010detn\u011b ostatn\u00edch materi\u00e1l\u016f pro j\u00e1dra Vita. Bylo tak\u00e9 zji\u0161t\u011bno, \u017ee kompozity z oxidu hlinit\u00e9ho maj\u00ed nejvy\u0161\u0161\u00ed pevnost v ohybu, co\u017e znamen\u00e1, \u017ee jsou schopny odolat zat\u00ed\u017een\u00ed v ohybu. Anal\u00fdza SNK po\u0159ad\u00ed zkou\u0161ek pevnosti v ohybu byla tak\u00e9 schopna rozli\u0161it chemick\u00e9 a strukturn\u00ed rozd\u00edly mezi p\u011bti komer\u010dn\u00edmi j\u00e1drov\u00fdmi materi\u00e1ly. Byla zji\u0161t\u011bna p\u016fsobiv\u00e1 korelace mezi pevnost\u00ed v ohybu a skute\u010dnou tvrdost\u00ed kompozit\u016f oxidu hlinit\u00e9ho a dent\u00e1ln\u00edm pou\u017eit\u00edm (p0,05), co\u017e nazna\u010duje, \u017ee jsou pro dent\u00e1ln\u00ed pou\u017eit\u00ed vhodn\u011bj\u0161\u00ed ne\u017e komer\u010dn\u00ed j\u00e1drov\u00e9 materi\u00e1ly. Tento v\u00fdzkum je slibn\u00fd a p\u0159isp\u011bje k vytvo\u0159en\u00ed granul\u00ed oxidu hlinit\u00e9ho se zlep\u0161en\u00fdmi mechanick\u00fdmi vlastnostmi, co\u017e umo\u017en\u00ed zubn\u00edm l\u00e9ka\u0159\u016fm poskytovat sv\u00fdm pacient\u016fm optim\u00e1ln\u00ed stomatologickou p\u00e9\u010di a pom\u016f\u017ee zlep\u0161it kvalitu \u017eivota zejm\u00e9na geriatrick\u00fdch pacient\u016f.<\/p>\n<h2>Aplikace<\/h2>\n<p>Young\u016fv modul je z\u00e1kladn\u00ed vlastnost\u00ed materi\u00e1lu, kter\u00e1 ur\u010duje jeho schopnost absorbovat nap\u011bt\u00ed p\u0159ed poru\u0161en\u00edm. Pou\u017e\u00edv\u00e1 se v r\u016fzn\u00fdch aplikac\u00edch, od konstrukce v letectv\u00ed a automobilov\u00e9m pr\u016fmyslu a\u017e po konstruk\u010dn\u00ed materi\u00e1ly, jako je hlin\u00edk. Vy\u0161\u0161\u00ed Young\u016fv modul znamen\u00e1 tu\u017e\u0161\u00ed materi\u00e1l. Young\u016fv modul oxidu hlinit\u00e9ho je 12,6 GPa, co\u017e z n\u011bj \u010din\u00ed jeden z nejpevn\u011bj\u0161\u00edch keramick\u00fdch materi\u00e1l\u016f, kter\u00e9 jsou v sou\u010dasnosti k dispozici.<\/p>\n<p>Pru\u017en\u00e9 vlastnosti oxidu hlinit\u00e9ho jsou d\u00e1ny jeho strukturou, chemick\u00fdm slo\u017een\u00edm a mikrostrukturou. Hlin\u00edk je polykrystalick\u00fd materi\u00e1l slo\u017een\u00fd z f\u00e1z\u00ed y a a odd\u011blen\u00fdch hranic\u00ed zrn oxidu hlinit\u00e9ho; jednu f\u00e1zi tvo\u0159\u00ed oxid hlinit\u00fd, druhou oxidy alkalick\u00fdch kov\u016f a oxid k\u0159emi\u010dit\u00fd. Ob\u011b vrstvy jsou propojeny nanovl\u00e1kny a mikro\u010d\u00e1sticemi, kter\u00e9 v\u00fdznamn\u011b p\u0159isp\u00edvaj\u00ed k vysok\u00e9 hodnot\u011b Youngova modulu.<\/p>\n<p>Young\u016fv modul oxidu hlinit\u00e9ho lze stanovit r\u016fzn\u00fdmi experiment\u00e1ln\u00edmi metodami, je v\u0161ak nezbytn\u00e9 zohlednit podm\u00ednky, za kter\u00fdch se m\u011b\u0159en\u00ed prov\u00e1d\u00ed. Jednou z \u00fa\u010dinn\u00fdch technik, jak toho dos\u00e1hnout, je pou\u017eit\u00ed k\u0159ivky zat\u00ed\u017een\u00ed a posunut\u00ed z\u00edskan\u00e9 pomoc\u00ed mechanick\u00e9ho zku\u0161ebn\u00edho za\u0159\u00edzen\u00ed - ta m\u011b\u0159\u00ed, jak velk\u00e1 s\u00edla mus\u00ed vniknout do vzorku, aby do\u0161lo k jeho posunut\u00ed, a tak\u00e9 to, jak teplota ovliv\u0148uje v\u00fdsledky r\u016fzn\u00fdch zkou\u0161ek; hodnoty modulu pru\u017enosti siln\u011b z\u00e1vis\u00ed na rozd\u00edlech teplot, tak\u017ee jejich v\u00fdsledky jsou p\u0159i jednotliv\u00fdch zkou\u0161k\u00e1ch velmi prom\u011bnliv\u00e9.<\/p>\n<p>Young\u016fv modul se zvy\u0161uje s rostouc\u00ed teplotou a pevnost v tahu kles\u00e1 se slinov\u00e1n\u00edm oxidu hlinit\u00e9ho. Elektrick\u00e1 vodivost rovn\u011b\u017e z\u00e1vis\u00ed na teplot\u011b; obsah iont\u016f alkalick\u00fdch kov\u016f rovn\u011b\u017e ovliv\u0148uje \u00farove\u0148 elektrick\u00e9 vodivosti; odpor se zvy\u0161uje s vy\u0161\u0161\u00ed teplotou a men\u0161\u00ed velikost\u00ed p\u00f3r\u016f.<\/p>\n<p>Synt\u00e9za por\u00e9zn\u00edho oxidu hlinit\u00e9ho s po\u017eadovan\u00fdmi fyzik\u00e1ln\u00edmi vlastnostmi je n\u00e1ro\u010dn\u00fd \u00fakol vzhledem k mnoha prom\u011bnn\u00fdm, kter\u00e9 ovliv\u0148uj\u00ed jeho fyzik\u00e1ln\u00ed vlastnosti a chov\u00e1n\u00ed. C\u00edlem t\u00e9to studie je vytvo\u0159it efektivn\u00ed postup v\u00fdroby por\u00e9zn\u00edho oxidu hlinit\u00e9ho s vyrovnan\u00fdmi hodnotami p\u00f3rovitosti a Youngova modulu s vyu\u017eit\u00edm Taguchiho metody optimalizace v\u00fdrobn\u00edho procesu, jako je doba slinov\u00e1n\u00ed, rychlost oh\u0159evu p\u0159i kalcinaci a proces kone\u010dn\u00e9ho tepeln\u00e9ho zpracov\u00e1n\u00ed, pro zlep\u0161en\u00ed v\u00fdrobn\u00edho procesu por\u00e9zn\u00edho materi\u00e1lu oxidu hlinit\u00e9ho.<\/p>\n<p>V\u00fdsledky uk\u00e1zaly, \u017ee syntetick\u00fd g-hlin\u00edk s n\u00edzkou velikost\u00ed p\u00f3r\u016f a vysok\u00fdm Youngov\u00fdm modulem lze vyrobit pomoc\u00ed nov\u00e9 metody synt\u00e9zy. Tento p\u0159\u00edstup zdvojn\u00e1sobuje Young\u016fv modul a z\u00e1rove\u0148 zpev\u0148uje keramiku, tak\u017ee je vhodn\u00e1 pro aplikace vy\u017eaduj\u00edc\u00ed vysoce v\u00fdkonn\u00e9 materi\u00e1ly. Granule vyroben\u00e9 t\u00edmto p\u0159\u00edstupem se vyzna\u010duj\u00ed vysokou plasticitou pro deformaci bez vzniku trhlin, co\u017e je d\u016fle\u017eit\u00e1 vlastnost pro l\u00e9ka\u0159sk\u00e9 a dent\u00e1ln\u00ed aplikace. Krom\u011b toho se d\u00edky tomuto postupu synt\u00e9zy v\u00fdrazn\u011b sn\u00ed\u017eila jej\u00ed l\u00e1mavost, tak\u017ee tato keramika je klinicky pou\u017eiteln\u011bj\u0161\u00ed ne\u017e d\u0159\u00edve.<\/p>\n<h2>V\u00fdhody<\/h2>\n<p>Young\u016fv modul je z\u00e1kladn\u00ed mechanickou vlastnost\u00ed pro mnoho aplikac\u00ed. M\u011b\u0159\u00ed odolnost materi\u00e1l\u016f v\u016f\u010di nam\u00e1h\u00e1n\u00ed a sou\u010dasn\u011b ukazuje, jak dob\u0159e pohlcuj\u00ed vibrace nebo r\u00e1zov\u00e9 vlny. Vy\u0161\u0161\u00ed Young\u016fv modul znamen\u00e1 v\u011bt\u0161\u00ed odolnost proti po\u0161kozen\u00ed; hlin\u00edk v tomto ohledu vynik\u00e1 mimo\u0159\u00e1dn\u011b vysokou hodnotou Youngova modulu, co\u017e z n\u011bj \u010din\u00ed vynikaj\u00edc\u00ed materi\u00e1l pro pou\u017eit\u00ed ve stroj\u00edrensk\u00fdch aplikac\u00edch.<\/p>\n<p>Hlin\u00edk je pevn\u00fd a cenov\u011b v\u00fdhodn\u00fd materi\u00e1l. A\u010dkoli nen\u00ed tak pevn\u00fd jako ocel, jeho ni\u017e\u0161\u00ed hmotnost umo\u017e\u0148uje jeho \u010dast\u011bj\u0161\u00ed pou\u017eit\u00ed v letadlech, kde hmotnost hraje rozhoduj\u00edc\u00ed roli. Hlin\u00edk tak\u00e9 sni\u017euje spot\u0159ebu paliva a emise, \u010d\u00edm\u017e pom\u00e1h\u00e1 \u017eivotn\u00edmu prost\u0159ed\u00ed.<\/p>\n<p>Jednou z v\u00fdhod oxidu hlinit\u00e9ho je jeho odolnost v\u016f\u010di hydroterm\u00e1ln\u00edmu st\u00e1rnut\u00ed. Krom\u011b toho pat\u0159\u00ed jeho Young\u016fv modul mezi nejvy\u0161\u0161\u00ed ze v\u0161ech keramick\u00fdch materi\u00e1l\u016f, co\u017e znamen\u00e1, \u017ee odol\u00e1v\u00e1 extr\u00e9mn\u00edm teplotn\u00edm podm\u00ednk\u00e1m, ani\u017e by pod tlakem praskal. Hlin\u00edk m\u00e1 \u010detn\u00e9 vyu\u017eit\u00ed ve zdravotnictv\u00ed, kde kostn\u00ed implant\u00e1ty mus\u00ed z\u016fstat nepo\u0161kozen\u00e9, zat\u00edmco stomatologick\u00e9 aplikace vyu\u017e\u00edvaj\u00ed jeho vlastnost\u00ed proti po\u0161kozen\u00ed t\u0159en\u00edm.<\/p>\n<p>Young\u016fv modul oxidu hlinit\u00e9ho z\u00e1vis\u00ed na jeho \u010distot\u011b a souvis\u00ed tak\u00e9 s tvrdost\u00ed. \u010c\u00edm \u010dist\u0161\u00ed oxid hlinit\u00fd se vyr\u00e1b\u00ed, t\u00edm se jeho Young\u016fv modul zvy\u0161uje. Bohu\u017eel vzhledem k n\u00edzk\u00e9mu koeficientu autodifuze a bodu t\u00e1n\u00ed m\u016f\u017ee b\u00fdt v\u00fdroba \u010dist\u00e9ho oxidu hlinit\u00e9ho n\u00e1ro\u010dn\u00e1, ale p\u0159id\u00e1n\u00edm uhl\u00edku do jeho matrice by se tento koeficient mohl v\u00fdrazn\u011b zv\u00fd\u0161it a Young\u016fv modul v\u00fdrazn\u011b zv\u00fd\u0161it.<\/p>\n<p>Young\u016fv modul se sni\u017euje s teplotou, proto\u017ee \u010d\u00e1stice se k sob\u011b p\u0159ibli\u017euj\u00ed a vytv\u00e1\u0159ej\u00ed mezi sebou pevn\u011bj\u0161\u00ed vazby. Nicm\u00e9n\u011b v\u00edceslo\u017ekov\u00e9 materi\u00e1ly z oxidu hlinit\u00e9ho lze konstruovat s lok\u00e1ln\u011b vy\u0161\u0161\u00edmi Youngov\u00fdmi moduly t\u00edm, \u017ee se do jejich slo\u017een\u00ed zahrnou p\u0159\u00edsady s morfologi\u00ed ve tvaru ty\u010dinek nebo whisker\u016f a tak\u00e9 anizotropn\u00ed p\u0159edlisky.<\/p>\n<p>Dynamick\u00e1 indentace z\u016fst\u00e1v\u00e1 jedn\u00edm z nejobl\u00edben\u011bj\u0161\u00edch p\u0159\u00edstup\u016f k m\u011b\u0159en\u00ed vlastn\u00edho Youngova modulu oxidu hlinit\u00e9ho, ale tato metoda nen\u00ed dostate\u010dn\u011b p\u0159esn\u00e1, proto\u017ee m\u011b\u0159\u00ed pouze po\u0161kozen\u00e9 z\u00f3ny pod indenta\u010dn\u00edm hrotem. M\u00edsto toho tato studie navrhuje novou inovativn\u00ed metodu zahrnuj\u00edc\u00ed extrapolaci k\u0159ivek zat\u00ed\u017een\u00ed a posunut\u00ed vzork\u016f; v\u00fdsledky jsou srovnateln\u00e9 s technikami zkou\u0161en\u00ed mikrotvrdosti.<\/p>\n<p>Tento \u010dl\u00e1nek zkoum\u00e1, jak lze kombinovat numerick\u00e9 modelov\u00e1n\u00ed a experiment\u00e1ln\u00ed techniky k p\u0159edpov\u011bdi modulu pru\u017enosti povlaku oxidu hlinit\u00e9ho nanesen\u00e9ho na hlin\u00edkov\u00e9m substr\u00e1tu s vyu\u017eit\u00edm t\u0159\u00edbodov\u00fdch a \u010dty\u0159bodov\u00fdch ohybov\u00fdch zkou\u0161ek jako prost\u0159edk\u016f k hodnocen\u00ed jeho mechanick\u00fdch vlastnost\u00ed.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-181\" src=\"https:\/\/aluminaceramics.net\/wp-content\/uploads\/2024\/06\/Youngs-Modulus-Alumina-ceramics.jpg\" alt=\"Young\u016fv modul Keramika z oxidu hlinit\u00e9ho\" width=\"750\" height=\"750\" srcset=\"https:\/\/aluminaceramics.net\/wp-content\/uploads\/2024\/06\/Youngs-Modulus-Alumina-ceramics.jpg 750w, https:\/\/aluminaceramics.net\/wp-content\/uploads\/2024\/06\/Youngs-Modulus-Alumina-ceramics-300x300.jpg 300w, https:\/\/aluminaceramics.net\/wp-content\/uploads\/2024\/06\/Youngs-Modulus-Alumina-ceramics-150x150.jpg 150w, https:\/\/aluminaceramics.net\/wp-content\/uploads\/2024\/06\/Youngs-Modulus-Alumina-ceramics-12x12.jpg 12w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>Alumina is an invaluable ceramic material, known for its superior oxidation resistance and Young&#8217;s modulus properties. However, due to the [&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":"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-94","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\/94","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=94"}],"version-history":[{"count":3,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/94\/revisions"}],"predecessor-version":[{"id":182,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/94\/revisions\/182"}],"wp:attachment":[{"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/media?parent=94"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/categories?post=94"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/tags?post=94"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}