Zirk\u00f3niom tvrden\u00fd oxid hlinit\u00fd (ZTA) je umel\u00e1 keramika, ktor\u00e1 kombinuje vlastnosti oxidu hlinit\u00e9ho a zirk\u00f3niovej keramiky a poskytuje mechanick\u00fa pevnos\u0165 a odolnos\u0165 vo\u010di tepeln\u00fdm \u0161okom, v\u010faka \u010domu je vhodn\u00e1 pre ortopedick\u00e9 aplik\u00e1cie, ako s\u00fa femor\u00e1lne hlavice a acetabul\u00e1rne vlo\u017eky, a priemyseln\u00e9 aplik\u00e1cie, ako s\u00fa tesnenia ventilov, puzdr\u00e1, \u010dasti \u010derpadiel, rezn\u00e9 n\u00e1stroje, s\u00fa\u010dasti motorov a tesnenia ventilov. Mo\u017eno ho n\u00e1js\u0165 v ortopedick\u00fdch aplik\u00e1ci\u00e1ch, ako s\u00fa femor\u00e1lne hlavy a acetabul\u00e1rne vlo\u017eky, zatia\u013e \u010do priemyseln\u00e9 aplik\u00e1cie zah\u0155\u0148aj\u00fa ventilov\u00e9 tesnenia puzdr\u00e1 ventilov\u00e9 tesnenia puzdr\u00e1 s\u00fa\u010dasti \u010derpadiel rezn\u00e9 n\u00e1stroje rezn\u00e9 n\u00e1stroje alebo s\u00fa\u010dasti motorov.<\/p>\n
ZTA sa vyr\u00e1ba g\u00e9lov\u00fdm odlievan\u00edm s pou\u017eit\u00edm pr\u00e1\u0161kov\u00e9ho oxidu hlinit\u00e9ho a ytriom stabilizovan\u00e9ho zirk\u00f3nov\u00e9ho pr\u00e1\u0161ku. Tento proces zah\u0155\u0148a pr\u00edpravu suspenzie, formovanie, su\u0161enie rozp\u00fa\u0161\u0165adlom s osmotick\u00fdm aj vzduchov\u00fdm su\u0161en\u00edm, pyrol\u00fdzu a spekanie ako posledn\u00e9 kroky.<\/p>\n
Zirk\u00f3nom tvrden\u00fd oxid hlinit\u00fd je ide\u00e1lny materi\u00e1l pre aplik\u00e1cie vy\u017eaduj\u00face vysok\u00fa pevnos\u0165 aj h\u00fa\u017eevnatos\u0165, preto\u017ee sa vyr\u00e1ba transform\u00e1ciou jemn\u00fdch tetragon\u00e1lnych \u010dast\u00edc zirk\u00f3nia do matrice oxidu hlinit\u00e9ho vyvolanou nap\u00e4t\u00edm. T\u00fdmto procesom sa vytv\u00e1ra rovnomern\u00e9 rozlo\u017eenie ve\u013ekosti \u010dast\u00edc, ktor\u00e9 zabezpe\u010duje vynikaj\u00face mechanick\u00e9 vlastnosti, ako je tvrdos\u0165, lomov\u00e1 h\u00fa\u017eevnatos\u0165 a h\u00fa\u017eevnatos\u0165 - okrem toho poskytuje odolnos\u0165 vo\u010di chemik\u00e1li\u00e1m a opotrebovaniu.<\/p>\n
\u010castice oxidu zirkoni\u010dit\u00e9ho rozpt\u00fdlen\u00e9 v matrici oxidu hlinit\u00e9ho sa vo v\u0161eobecnosti nem\u00f4\u017eu meni\u0165 v d\u00f4sledku chemick\u00fdch interakci\u00ed medzi nimi a \u010dasticami oxidu hlinit\u00e9ho, ale pri nam\u00e1han\u00ed sa m\u00f4\u017eu aktivova\u0165 a prejs\u0165 transform\u00e1ciou. Transformovan\u00e9 \u010dastice zirk\u00f3nia vytv\u00e1raj\u00fa tlakov\u00e9 nap\u00e4tia na \u010dele trhl\u00edn, ktor\u00e9 zabra\u0148uj\u00fa ich \u0161\u00edreniu; ich transform\u00e1cia m\u00e1 za n\u00e1sledok v\u00e4\u010d\u0161iu h\u00fa\u017eevnatos\u0165 ako tradi\u010dn\u00fd oxid hlinit\u00fd.<\/p>\n
Claussen prv\u00fdkr\u00e1t op\u00edsal transforma\u010dn\u00e9 h\u00fa\u017eevnatos\u0165 v roku 1976 a charakterizuje ju interakcia \u010dast\u00edc s \u010delami trhl\u00edn, ktor\u00e9 ich vych\u00fdlia a z\u00e1rove\u0148 vytvoria tlakov\u00e9 nap\u00e4tia pred hrotmi trhl\u00edn, \u010d\u00edm sa zv\u00fd\u0161i lomov\u00e1 h\u00fa\u017eevnatos\u0165 materi\u00e1lov (Claussen 1976). Tento efekt zvy\u0161uje lomov\u00fa h\u00fa\u017eevnatos\u0165.<\/p>\n
ZTA sa m\u00f4\u017ee vyr\u00e1ba\u0165 pomocou izostatick\u00e9ho lisovania za tepla a je vhodn\u00fd pre materi\u00e1ly lo\u017eiskov\u00fdch p\u00e1rov n\u00e1hrad bedrov\u00e9ho k\u013abu, pri\u010dom v porovnan\u00ed s keramick\u00fdmi femor\u00e1lnymi hlavicami z ytriom stabilizovan\u00e9ho zirk\u00f3nu (Y-TZP) preuk\u00e1zal lep\u0161iu \u017eivotnos\u0165 (obr\u00e1zok 7.10). Okrem toho jej vysok\u00fd obsah oxidu hlinit\u00e9ho a vy\u0161\u0161ia hustota pom\u00e1haj\u00fa zmierni\u0165 javy starnutia pozorovan\u00e9 u Y-TZP, ktor\u00e9 sp\u00f4sobuj\u00fa prehnan\u00fa t-m transform\u00e1ciu a mechanick\u00fa degrad\u00e1ciu v priebehu \u010dasu (obr\u00e1zok 7.11 a 7.12).<\/p>\n
ZTA je vynikaj\u00facou vo\u013ebou materi\u00e1lu pre lek\u00e1rske implant\u00e1ty, ktor\u00e9 musia by\u0165 odoln\u00e9 vo\u010di kor\u00f3zii a p\u00f4sobeniu telesn\u00fdch tekut\u00edn, ako s\u00fa napr\u00edklad implant\u00e1ty pou\u017e\u00edvan\u00e9 v opera\u010dn\u00fdch s\u00e1lach a prev\u00e1dzkov\u00fdch turb\u00ednov\u00fdch motoroch. V porovnan\u00ed s tradi\u010dn\u00fdm oxidom hlinit\u00fdm pon\u00faka ZTA vynikaj\u00facu odolnos\u0165 vo\u010di chemickej kor\u00f3zii; odol\u00e1va n\u00e1ro\u010dn\u00fdm podmienkam bez toho, aby do\u0161lo k jeho degrad\u00e1cii alebo zlyhaniu. Okrem toho sa ZTA m\u00f4\u017ee pochv\u00e1li\u0165 v\u00fdnimo\u010dnou odolnos\u0165ou vo\u010di teplotn\u00fdm \u0161okom, \u010do znamen\u00e1, \u017ee dok\u00e1\u017ee zn\u00e1\u0161a\u0165 r\u00fdchle zmeny teploty, ako s\u00fa napr\u00edklad komponenty pec\u00ed a s\u00fa\u010dasti turb\u00ednov\u00fdch motorov, bez toho, aby pod tlakom praskala alebo sa l\u00e1mala.<\/p>\n
Kompozity AZ s\u00fa mimoriadne h\u00fa\u017eevnat\u00e9 v\u010faka tvrden\u00fdm \u010dasticiam zirk\u00f3nu rozpt\u00fdlen\u00fdm v matrici oxidu hlinit\u00e9ho. Pri vystaven\u00ed nam\u00e1haniu \u010dastice menia svoju kry\u0161t\u00e1lov\u00fa \u0161trukt\u00faru z tetragon\u00e1lnej na monoklinick\u00fa formu, \u010do sp\u00f4sobuje objemov\u00fa expanziu a kompresiu, ktor\u00e1 pom\u00e1ha zastavi\u0165 \u0161\u00edrenie trhl\u00edn - t\u00e1to vlastnos\u0165 zn\u00e1ma ako transforma\u010dn\u00e9 h\u00fa\u017eevnatos\u0165 rob\u00ed ZTA od spolo\u010dnosti HMA Wear Solutions ide\u00e1lnym pre aplik\u00e1cie vy\u017eaduj\u00face vysok\u00fa pevnos\u0165, h\u00fa\u017eevnatos\u0165 a tvrdos\u0165.<\/p>\n
Trvanlivos\u0165 sa \u010falej zvy\u0161uje pri tepelnom \u0161oku. \u010castice oxidu zirkoni\u010dit\u00e9ho rozpt\u00fdlen\u00e9 v matrici oxidu hlinit\u00e9ho absorbuj\u00fa energiu z r\u00fdchlych zmien teploty, \u010d\u00edm ich chr\u00e1nia pred prasknut\u00edm a praskan\u00edm v d\u00f4sledku nap\u00e4tia sp\u00f4soben\u00e9ho prudk\u00fdmi zmenami teploty. Keramika sa tak m\u00f4\u017ee bezpe\u010dne pou\u017e\u00edva\u0165 v zariadeniach vystaven\u00fdch n\u00e1hlym a intenz\u00edvnym teplotn\u00fdm zmen\u00e1m, ako s\u00fa napr\u00edklad komponenty pec\u00ed alebo \u010dasti turb\u00ednov\u00fdch motorov, bez rizika zlyhania.<\/p>\n
Tvrden\u00fd oxid zirkoni\u010dit\u00fd je zn\u00e1my svojou odolnos\u0165ou vo\u010di kor\u00f3zii. Preto sa m\u00f4\u017ee pou\u017e\u00edva\u0165 v zariadeniach, ktor\u00e9 prich\u00e1dzaj\u00fa do kontaktu s koroz\u00edvnymi kvapalinami alebo chemik\u00e1liami, ako s\u00fa leptacie kyseliny a \u010distiace prostriedky. Okrem toho je tento materi\u00e1l v\u010faka svojej odolnosti vo\u010di mechanick\u00e9mu opotrebovaniu vhodn\u00fd pre lek\u00e1rske implant\u00e1ty alebo zariadenia, ktor\u00e9 prich\u00e1dzaj\u00fa do kontaktu s telesn\u00fdmi tekutinami alebo chemik\u00e1liami, ako s\u00fa napr\u00edklad \u010distiace roztoky.<\/p>\n
V\u010faka svojej trvanlivosti a odolnosti vo\u010di kor\u00f3zii sa kompozitn\u00e9 materi\u00e1ly z oxidu zirkoni\u010dit\u00e9ho (ZTA) pou\u017e\u00edvaj\u00fa v mnoh\u00fdch priemyseln\u00fdch odvetviach. V\u00fdrobcovia rezn\u00fdch n\u00e1strojov sa pri v\u00fdrobe rezn\u00fdch n\u00e1strojov \u010dasto rozhoduj\u00fa pre pevn\u00e9 a z\u00e1rove\u0148 h\u00fa\u017eevnat\u00e9 materi\u00e1ly ZTA; okrem toho sa za\u010dal vo ve\u013ekej miere pou\u017e\u00edva\u0165 na v\u00fdrobu zdravotn\u00edckych zariaden\u00ed, ako s\u00fa ortopedick\u00e9 implant\u00e1ty, napr\u00edklad hlavice stehenn\u00fdch k\u013abov a acetabul\u00e1rne vlo\u017eky.<\/p>\n
Materi\u00e1ly ZTA pou\u017e\u00edvan\u00e9 v lek\u00e1rskych aplik\u00e1ci\u00e1ch dobre obst\u00e1li v\u010faka svojej vy\u0161\u0161ej lomovej h\u00fa\u017eevnatosti - a\u017e 20-kr\u00e1t vy\u0161\u0161ej ako pri samotnom oxidu hlinitom - \u010do pom\u00e1ha zni\u017eova\u0165 riziko krehk\u00e9ho zlyhania, ktor\u00e9 by mohlo sp\u00f4sobi\u0165 nepriazniv\u00e9 \u00fa\u010dinky na zdravie pacientov.<\/p>\n
Tvrd\u00fd oxid zirkoni\u010dit\u00fd je tvrd\u00fd, krehk\u00fd materi\u00e1l, ktor\u00fd je navrhnut\u00fd tak, aby odol\u00e1val vysok\u00fdm teplot\u00e1m a drsn\u00e9mu prostrediu. Je odoln\u00fd vo\u010di kor\u00f3zii a chemick\u00fdm vplyvom a m\u00e1 po\u010detn\u00e9 vyu\u017eitie v r\u00f4znych odvetviach, ako je leteck\u00fd priemysel, v\u00fdroba a automobilov\u00fd priemysel - a tie\u017e vynikaj\u00facu mechanick\u00fa pevnos\u0165, odolnos\u0165 vo\u010di tepeln\u00fdm \u0161okom a n\u00edzku mieru opotrebovania.<\/p>\n
Keramika ZTA sa od tradi\u010dnej keramiky l\u00ed\u0161i t\u00fdm, \u017ee pozost\u00e1va z kompozitov oxidu hlinit\u00e9ho a zirk\u00f3nia, ktor\u00e9 sa vyr\u00e1baj\u00fa zmie\u0161an\u00edm t\u00fdchto materi\u00e1lov v suspenzii pred spekan\u00edm pri zv\u00fd\u0161en\u00fdch teplot\u00e1ch. Spekan\u00edm vznikaj\u00fa jemne rozpt\u00fdlen\u00e9 \u010dastice tetragon\u00e1lnej f\u00e1zy zirk\u00f3nu v matrici oxidu hlinit\u00e9ho; ke\u010f trhliny postupuj\u00fa cez t\u00fato matricu, ich energia vyvol\u00e1va f\u00e1zov\u00e9 premeny, ktor\u00e9 sp\u00f4sobuj\u00fa objemov\u00fa expanziu, ktor\u00e1 \u00fa\u010dinne p\u00f4sob\u00ed proti v\u0161etk\u00fdm pr\u00edtomn\u00fdm nap\u00e4tiam; to sp\u00f4sobuje, \u017ee sa v nej objavuj\u00fa vych\u00fdlen\u00e9 trhliny na viacer\u00fdch miestach, \u010d\u00edm sa rozpty\u013euje energia trhliny a z\u00e1rove\u0148 sa energia trhliny celkovo rozpty\u013euje.<\/p>\n
Zlo\u017eenie tohto materi\u00e1lu mo\u017eno prisp\u00f4sobi\u0165 pod\u013ea zam\u00fd\u0161\u013ean\u00e9ho pou\u017eitia, pri\u010dom pomer oxidu hlinit\u00e9ho a zirk\u00f3nu mo\u017eno upravi\u0165 pod\u013ea potreby tak, aby vyhovoval jeho jedine\u010dn\u00fdm po\u017eiadavk\u00e1m. Napr\u00edklad by sa do jeho zlo\u017eenia mohlo prida\u0165 viac zirk\u00f3nu na zv\u00fd\u0161enie pevnosti v \u0165ahu, zatia\u013e \u010do viac oxidu hlinit\u00e9ho by zv\u00fd\u0161ilo odolnos\u0165 proti hydroterm\u00e1lnemu starnutiu a kor\u00f3zii.<\/p>\n
Produktov\u00fd rad ZTA-96 bol vyvinut\u00fd s cie\u013eom pon\u00faknu\u0165 n\u00e1kladovo efekt\u00edvne rie\u0161enia pre aplik\u00e1cie vy\u017eaduj\u00face opotrebenie, kor\u00f3ziu a vysok\u00fa teplotn\u00fa stabilitu. T\u00e1to keramika, ktor\u00e1 je k dispoz\u00edcii v r\u00f4znych tvaroch a ve\u013ekostiach s mo\u017enos\u0165ou prisp\u00f4sobenia toleranci\u00ed a povrchov\u00fdch \u00faprav, dok\u00e1\u017ee zabezpe\u010di\u0165 spo\u013eahliv\u00fd v\u00fdkon v n\u00e1ro\u010dn\u00fdch aplik\u00e1ci\u00e1ch.<\/p>\n
Zirk\u00f3nom tvrden\u00fd oxid hlinit\u00fd je u\u017e dlho zn\u00e1my pre svoju odolnos\u0165 vo\u010di opotrebovaniu a kor\u00f3zii, ako aj pre svoju vynikaj\u00facu chemick\u00fa stabilitu - obe vlastnosti ho predur\u010duj\u00fa na pou\u017eitie v medic\u00edne, kde prich\u00e1dza do kontaktu s telesn\u00fdmi tekutinami alebo chemik\u00e1liami. Okrem toho sa zirk\u00f3nia pova\u017euje za atrakt\u00edvneho kandid\u00e1ta na zubn\u00e9 a chirurgick\u00e9 implant\u00e1ty v\u010faka svojim vynikaj\u00facim vlastnostiam biologickej kompatibility.<\/p>\n
Biolox Delta od spolo\u010dnosti CeramTec z Plochingenu v Nemecku bol uveden\u00fd do komer\u010dn\u00e9ho predaja ako jeden z prv\u00fdch komer\u010dne dostupn\u00fdch ZTA materi\u00e1lov v roku 2000 ako n\u00e1hradn\u00fd materi\u00e1l pre implant\u00e1ty na femor\u00e1lne hlavice a acetabul\u00e1rne vlo\u017eky. Pozost\u00e1va z matrice oxidu hlinit\u00e9ho vystu\u017eenej zirk\u00f3nom a hlinitanom stroncia, ktor\u00e9 zabezpe\u010duj\u00fa mechanizmy otupenia hrotu trhliny a mechanizmy spevnenia; spolu s oxidom chr\u00f3mu, ktor\u00fd zabra\u0148uje kor\u00f3zii pri n\u00edzkych teplot\u00e1ch; pod\u013ea spr\u00e1v spolo\u010dnosti CeramTec bolo s pou\u017eit\u00edm tejto v\u00fdpl\u0148ovej keramiky implantovan\u00fdch viac ako 320 000 femor\u00e1lnych hlav\u00edc a 160 000 vlo\u017eiek.<\/p>\n
Zirk\u00f3nov\u00e9 zrn\u00e1 v kombin\u00e1cii s matricou z oxidu hlinit\u00e9ho vytv\u00e1raj\u00fa materi\u00e1l s v\u00fdnimo\u010dnou odolnos\u0165ou vo\u010di tepeln\u00fdm \u0161okom, v\u010faka \u010domu je ide\u00e1lny na aplik\u00e1cie pri extr\u00e9mnych teplot\u00e1ch. Okrem toho kompozity oxidu hlinit\u00e9ho a oxidu zirkoni\u010dit\u00e9ho maj\u00fa tendenciu prekon\u00e1va\u0165 \u010dist\u00fd oxid hlinit\u00fd z h\u013eadiska trvanlivosti aj pri dlhodobom pieskovan\u00ed.<\/p>\n
ZTA pon\u00faka vysok\u00fa lomov\u00fa h\u00fa\u017eevnatos\u0165, v\u010faka \u010domu je ide\u00e1lnou vo\u013ebou materi\u00e1lu v aplik\u00e1ci\u00e1ch, kde nie s\u00fa \u017eiaduce krehk\u00e9 materi\u00e1ly. Na dosiahnutie maxim\u00e1lnej pevnosti a h\u00fa\u017eevnatosti v\u0161ak musia by\u0165 kompozity hlin\u00edka a oxidu zirkoni\u010dit\u00e9ho spr\u00e1vne spekan\u00e9 a zhutnen\u00e9; pr\u00edli\u0161 n\u00edzka teplota by mohla ma\u0165 za n\u00e1sledok bodov\u00e9 defekty a zn\u00ed\u017een\u00fa pevnos\u0165 v ohybe - preto by sa na zabezpe\u010denie optim\u00e1lneho spekania a rozlo\u017eenia ve\u013ekosti \u010dast\u00edc mala pou\u017ei\u0165 teplota 1550 stup\u0148ov Celzia.<\/p>\n
Kompozity oxidu hlinit\u00e9ho a oxidu zirkoni\u010dit\u00e9ho poskytuj\u00fa vynikaj\u00facu odolnos\u0165 proti opotrebovaniu v rezn\u00fdch n\u00e1strojoch a in\u00fdch abraz\u00edvnych komponentoch a maj\u00fa n\u00edzke trenie, \u010do zvy\u0161uje chemick\u00fa inertnos\u0165 a zni\u017euje n\u00e1klady v porovnan\u00ed s podobn\u00fdmi materi\u00e1lmi pou\u017e\u00edvan\u00fdmi na ortopedick\u00e9 implant\u00e1ty. Kombin\u00e1cia ich vlastnost\u00ed rob\u00ed tieto kompozity ve\u013emi \u017eiadan\u00fdmi v lek\u00e1rskych aplik\u00e1ci\u00e1ch.<\/p>\n
Nam\u00e1hanie kompozitov oxidu hlinit\u00e9ho a oxidu zirkoni\u010dit\u00e9ho sp\u00f4sobuje, \u017ee metastabiln\u00fd tetragon\u00e1lny zirk\u00f3n prech\u00e1dza transform\u00e1ciou na monoklinick\u00fd zirk\u00f3n a sp\u00f4sobuje objemov\u00e9 roz\u0161\u00edrenie zirk\u00f3nov\u00fdch kry\u0161t\u00e1lov, \u010do ods\u00fava hroty trhl\u00edn a z\u00e1rove\u0148 zvy\u0161uje h\u00fa\u017eevnatos\u0165 - tento efekt je zn\u00e1my ako transform\u00e1ciou vyvolan\u00e9 h\u00fa\u017eevnatenie.<\/p>\n
Zirk\u00f3niom tvrden\u00fd oxid hlinit\u00fd je zn\u00e1my t\u00fdm, \u017ee je pevn\u00fd a odoln\u00fd a z\u00e1rove\u0148 elektricky izoluje - to z neho rob\u00ed fantastick\u00fa vo\u013ebu materi\u00e1lu pre komponenty, ktor\u00e9 si vy\u017eaduj\u00fa mechanick\u00fa aj elektrick\u00fa izol\u00e1ciu, ako s\u00fa napr\u00edklad obj\u00edmky.<\/p>\n
Kompozity oxidu hlinit\u00e9ho a oxidu zirkoni\u010dit\u00e9ho vyroben\u00e9 s pou\u017eit\u00edm ytriou stabilizovan\u00e9ho oxidu zirkoni\u010dit\u00e9ho (8YSZ) sa uk\u00e1zali ako lep\u0161ie ako kompozity vyroben\u00e9 s pou\u017eit\u00edm nestabilizovan\u00e9ho oxidu hlinit\u00e9ho pri rovnako konkurencieschopnej cene. Ide\u00e1lne aplik\u00e1cie zah\u0155\u0148aj\u00fa aplik\u00e1cie, kde je nevyhnutn\u00e1 odolnos\u0165 vo\u010di oderu a dobr\u00e9 elektroizola\u010dn\u00e9 vlastnosti - a\u017e do teploty 1500 stup\u0148ov C s\u00fa v jeho mo\u017enostiach!<\/p>","protected":false},"excerpt":{"rendered":"
Zirconia toughened alumina (ZTA) is an engineered ceramic that combines the properties of both alumina and zirconia ceramics to provide […]<\/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":[4],"tags":[],"class_list":["post-131","post","type-post","status-publish","format-standard","hentry","category-product-related"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/aluminaceramics.net\/sk\/wp-json\/wp\/v2\/posts\/131","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aluminaceramics.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aluminaceramics.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aluminaceramics.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aluminaceramics.net\/sk\/wp-json\/wp\/v2\/comments?post=131"}],"version-history":[{"count":1,"href":"https:\/\/aluminaceramics.net\/sk\/wp-json\/wp\/v2\/posts\/131\/revisions"}],"predecessor-version":[{"id":132,"href":"https:\/\/aluminaceramics.net\/sk\/wp-json\/wp\/v2\/posts\/131\/revisions\/132"}],"wp:attachment":[{"href":"https:\/\/aluminaceramics.net\/sk\/wp-json\/wp\/v2\/media?parent=131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminaceramics.net\/sk\/wp-json\/wp\/v2\/categories?post=131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminaceramics.net\/sk\/wp-json\/wp\/v2\/tags?post=131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}