Pr\u00e1\u0161ok z oxidu hlinit\u00e9ho je neoddelite\u013enou s\u00fa\u010das\u0165ou mnoh\u00fdch keramick\u00fdch v\u00fdrobkov. Pou\u017e\u00edva sa na v\u00fdrobu dla\u017ed\u00edc a keramiky odolnej proti opotrebeniu; okrem toho sl\u00fa\u017ei ako nosi\u010d katalyz\u00e1tora. Oxid hlinit\u00fd sa vyr\u00e1ba zmie\u0161an\u00edm hydroxidu hlinit\u00e9ho s vodou a n\u00e1sledn\u00fdm zahrievan\u00edm na vysok\u00e9 teploty. Kalcinovan\u00fd oxid hlinit\u00fd sa d\u00e1 rozl\u00ed\u0161i\u0165 pod\u013ea ve\u013ekosti kry\u0161t\u00e1lov a obsahu sod\u00edka. Materi\u00e1ly s ni\u017e\u0161\u00edm obsahom sod\u00edka s\u00fa vhodn\u00e9 pre elektronick\u00e9 aplik\u00e1cie alebo ako keramick\u00e9 substr\u00e1ty.<\/p>\n
\u017diaruvzdorn\u00e1 keramika je anorganick\u00fd nekovov\u00fd materi\u00e1l s v\u00fdnimo\u010dnou tepelnou odolnos\u0165ou, ktor\u00fd je ide\u00e1lny pre priemyseln\u00e9 pece, kotly a vypa\u013eovacie pece. Jej vlastnosti, ako s\u00fa tepeln\u00e1 kapacita, tepeln\u00e1 vodivos\u0165 a odolnos\u0165 proti er\u00f3zii, je mo\u017en\u00e9 presne prisp\u00f4sobi\u0165. Vyu\u017e\u00edva sa okrem in\u00e9ho v peciach, kotloch a vypa\u013eovac\u00edch peciach; v\u010faka svojim vlastnostiam s\u00fa to univerz\u00e1lne materi\u00e1ly v mnoh\u00fdch priemyseln\u00fdch prostrediach, vr\u00e1tane pec\u00ed, kotlov a su\u0161iarn\u00ed \u2013 \u010dasto poskytuj\u00fa efekt\u00edvne tepelne odoln\u00e9 rie\u0161enia v n\u00e1ro\u010dn\u00fdch aplik\u00e1ci\u00e1ch, ako s\u00fa pece, kotly alebo su\u0161iarne \u2013 a z\u00e1rove\u0148 je mo\u017en\u00e9 ich v pr\u00edpade potreby jemne prisp\u00f4sobi\u0165 tak, aby sp\u013a\u0148ali \u0161pecifick\u00e9 charakteristiky, ako je tepeln\u00e1 kapacita, tepeln\u00e1 vodivos\u0165 alebo odolnos\u0165 proti er\u00f3zii.<\/p>\n
Pon\u00fakame \u0161irok\u00fa \u0161k\u00e1lu mo\u017enost\u00ed testovania pr\u00e1\u0161kov\u00e9ho oxidu hlinit\u00e9ho, od pos\u00fadenia realizovate\u013enosti a\u017e po spracovanie \u0161ar\u017e\u00ed. In\u017einieri m\u00f4\u017eu tieto testy vyu\u017ei\u0165 na doladenie zlo\u017eenia zmes\u00ed pre konkr\u00e9tne aplika\u010dn\u00e9 potreby a na pos\u00fadenie vplyvov na \u017eivotn\u00e9 prostredie; okrem toho m\u00f4\u017eu ur\u010di\u0165 vhodnos\u0165 \u017eiaruvzdorn\u00fdch materi\u00e1lov pre konkr\u00e9tne prostredia v z\u00e1vislosti od faktorov, ako je odolnos\u0165 vo\u010di tepeln\u00e9mu \u0161oku, chemick\u00e1 kompatibilita s roztaven\u00fdmi kovmi a struskami a rozmerov\u00e1 stabilita.<\/p>\n
Oxid hlinit\u00fd je v\u010faka svojej chemickej inertnosti a por\u00e9znej \u0161trukt\u00fare neocenite\u013en\u00fdm nosi\u010dom katalyz\u00e1torov. T\u00e1to vlastnos\u0165 mu umo\u017e\u0148uje podporova\u0165 chemick\u00e9 reakcie v petrochemickom priemysle a z\u00e1rove\u0148 prispieva\u0165 k ochrane \u017eivotn\u00e9ho prostredia.\u00a0Por\u00e9zny oxid hlinit\u00fd sa d\u00e1 vyrobi\u0165 hydroterm\u00e1lnou synt\u00e9zou reakciou hydroxidu hlinit\u00e9ho s vodou v uzavretej n\u00e1dobe pri vysokom tlaku a teplote, \u010d\u00edm vznikaj\u00fa ultra\u010dist\u00e9 nano\u010dastice \u0161pecifick\u00fdch tvarov a ve\u013ekost\u00ed, ktor\u00e9 sp\u013a\u0148aj\u00fa ur\u010dit\u00e9 normy. V\u00fdsledkom tejto reakcie s\u00fa \u010dastice oxidu hlinit\u00e9ho vysokej \u010distoty so \u0161pecifick\u00fdmi tvarmi a ve\u013ekos\u0165ami, ktor\u00e9 sp\u013a\u0148aj\u00fa presn\u00e9 \u0161pecifik\u00e1cie. \u010castice spekan\u00e9ho oxidu hlinit\u00e9ho sa n\u00e1sledne m\u00f4\u017eu spekat dohromady, \u010d\u00edm vznik\u00e1 hust\u00e1, pevn\u00e1 keramika s r\u00f4znymi priemyseln\u00fdmi aplik\u00e1ciami.<\/p>\n
Oxid hlinit\u00fd je vynikaj\u00faci materi\u00e1l na odvod tepla s n\u00edzkymi hodnotami tepelnej roz\u0165a\u017enosti a elektrick\u00fdmi izola\u010dn\u00fdmi vlastnos\u0165ami, v\u010faka \u010domu je u\u017eito\u010dn\u00fd v elektronick\u00fdch aplik\u00e1ci\u00e1ch. Pr\u00e1\u0161ok z oxidu hlinit\u00e9ho je \u00fa\u010dinn\u00fd materi\u00e1l na odvod tepla s vysokou tepelnou vodivos\u0165ou (30\u201336 W\/m\u00b7K), n\u00edzkym koeficientom tepelnej roz\u0165a\u017enosti, dobrou chemickou stabilitou a elektrick\u00fdmi izola\u010dn\u00fdmi vlastnos\u0165ami. \u0160iroko sa vyu\u017e\u00edva v elektronick\u00fdch zariadeniach, vozidl\u00e1ch na nov\u00e9 zdroje energie, 5G komunik\u00e1cii a v \u010fal\u0161\u00edch oblastiach.<\/p>\n
Pr\u00e1\u0161ok z oxidu hlinit\u00e9ho m\u00e1 zvy\u010dajne bielu alebo smotanov\u00fa farbu a vyzna\u010duje sa kry\u0161talickou \u0161trukt\u00farou. Na pou\u017eitie sa m\u00f4\u017ee spracov\u00e1va\u0165 such\u00fdm lisovan\u00edm, izostatick\u00fdm lisovan\u00edm, lisovan\u00edm za tepla, extrudovan\u00edm, odlievan\u00edm z p\u00e1sky, vstrekovan\u00edm do foriem a mie\u0161an\u00edm s r\u00f4znymi organick\u00fdmi alebo anorganick\u00fdmi mazivami, plastifik\u00e1tormi alebo elektrolytmi.<\/p>","protected":false},"excerpt":{"rendered":"
What is the Main Function of Alumina Powder? Alumina powder is an integral component of many ceramic products. It’s used […]<\/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":[13],"tags":[],"class_list":["post-83","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/aluminapowder.net\/sk\/wp-json\/wp\/v2\/posts\/83","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aluminapowder.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aluminapowder.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aluminapowder.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aluminapowder.net\/sk\/wp-json\/wp\/v2\/comments?post=83"}],"version-history":[{"count":1,"href":"https:\/\/aluminapowder.net\/sk\/wp-json\/wp\/v2\/posts\/83\/revisions"}],"predecessor-version":[{"id":84,"href":"https:\/\/aluminapowder.net\/sk\/wp-json\/wp\/v2\/posts\/83\/revisions\/84"}],"wp:attachment":[{"href":"https:\/\/aluminapowder.net\/sk\/wp-json\/wp\/v2\/media?parent=83"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminapowder.net\/sk\/wp-json\/wp\/v2\/categories?post=83"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminapowder.net\/sk\/wp-json\/wp\/v2\/tags?post=83"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}