Pr\u00e1\u0161ok nitridu b\u00f3ru sa pou\u017e\u00edva vo viacer\u00fdch priemyseln\u00fdch odvetviach na splnenie rast\u00facich po\u017eiadaviek na \u013eah\u0161ie a pevnej\u0161ie v\u00fdrobky s vy\u0161\u0161ou \u00fa\u010dinnos\u0165ou a v\u00fdkonom. Tak\u00e9to pokro\u010dil\u00e9 materi\u00e1ly si vy\u017eaduj\u00fa presnos\u0165, konzistenciu a \u010distotu - \u010do rafinovan\u00e9 boritany poskytuj\u00fa.<\/p>\n
\u0160es\u0165uholn\u00edkov\u00fd nitrid b\u00f3ru (h-BN) je elektroizola\u010dn\u00fd a m\u00e4kk\u00fd materi\u00e1l s vynikaj\u00facimi vlastnos\u0165ami na prenos elektrick\u00e9ho pr\u00fadu a z\u00e1rove\u0148 odoln\u00fd vo\u010di vysok\u00fdm teplot\u00e1m a oxid\u00e1cii.<\/p>\n
Pr\u00e1\u0161ky nitridu b\u00f3ru maj\u00fa viacero vyu\u017eit\u00ed. \u010casto sa prid\u00e1vaj\u00fa do zalievac\u00edch zmes\u00ed, olejov a maz\u00edv, aby sa zv\u00fd\u0161ila tepeln\u00e1 vodivos\u0165 a elektrick\u00e1 izol\u00e1cia. Okrem toho pr\u00e1\u0161ky BN sl\u00fa\u017eia ako such\u00e9 pr\u00e1\u0161kov\u00e9 maziv\u00e1, ktor\u00e9 zabra\u0148uj\u00fa prilepeniu alebo zadretiu, ako aj poskytuj\u00fa such\u00e9 mazanie na strojoch, ktor\u00e9 potrebuj\u00fa such\u00e9 mazanie medzi oper\u00e1ciami. A napokon, tieto pr\u00e1\u0161ky m\u00f4\u017eu by\u0165 dokonca ide\u00e1lnou vo\u013ebou pre vytl\u00e1\u010danie hlin\u00edka v\u010faka schopnosti BN zabr\u00e1ni\u0165 tvorbe dymu a z\u00e1rove\u0148 umo\u017eni\u0165 \u013eahk\u00e9 k\u013azanie polotovarov po\u010das procesov vytl\u00e1\u010dania Pr\u00e1\u0161ky BN s\u00fa skvelou vo\u013ebou, ktor\u00e1 umo\u017e\u0148uje plynul\u00e9 procesy vytl\u00e1\u010dania!<\/p>\n
BN m\u00e1 nieko\u013eko jedine\u010dn\u00fdch vlastnost\u00ed, ktor\u00e9 sa nenach\u00e1dzaj\u00fa v in\u00fdch keramick\u00fdch materi\u00e1loch, vr\u00e1tane n\u00edzkej hustoty a chemickej inertnosti (odolnos\u0165 vo\u010di kyselin\u00e1m a roztaven\u00fdm kovom), vynikaj\u00facej odolnosti vo\u010di vysok\u00fdm teplot\u00e1m, dobrej obrobite\u013enosti a odolnosti vo\u010di tepeln\u00fdm \u0161okom. hexagon\u00e1lny nitrid b\u00f3ru (h-BN) sa vyzna\u010duje \u0161trukt\u00farami podobn\u00fdmi graf\u00e9nu, ktor\u00e9 s\u00fa izoelektronick\u00e9 s uhl\u00edkom, v\u010faka \u010domu je m\u00e4kk\u00fd a maz\u013eav\u00fd; kubick\u00fd nitrid b\u00f3ru (c-BN) m\u00e1 na druhej strane v\u00fdnimo\u010dn\u00fa tvrdos\u0165, ktor\u00e1 je druh\u00e1 najvy\u0161\u0161ia po diamante; pri vysok\u00fdch teplot\u00e1ch nereaguj\u00fa \u017eiadne kovy, tak\u017ee tento materi\u00e1l je vynikaj\u00facou vo\u013ebou pre rezn\u00e9 n\u00e1stroje alebo br\u00fasne kot\u00fa\u010de.<\/p>\n
\u0160es\u0165uholn\u00edkov\u00fd nitrid b\u00f3ru (hBN) je v\u00fdnimo\u010dn\u00fd keramick\u00fd materi\u00e1l s v\u00fdnimo\u010dn\u00fdmi vlastnos\u0165ami. V\u010faka n\u00edzkej hustote, vynikaj\u00facej tepelnej vodivosti, elektrick\u00e9mu odporu a chemickej inertnosti pon\u00faka odolnos\u0165 vo\u010di kyselin\u00e1m a tekut\u00fdm kovom, ako aj in\u00fdm chemik\u00e1li\u00e1m.<\/p>\n
HBN sa \u0161iroko pou\u017e\u00edva ako pr\u00edsada do plastov a zalievac\u00edch hm\u00f4t na zv\u00fd\u0161enie tepelnej vodivosti bez vplyvu na elektrick\u00fa izol\u00e1ciu a ako such\u00e9 pr\u00e1\u0161kov\u00e9 mazivo v aplik\u00e1ci\u00e1ch, ako je obr\u00e1banie a odlievanie, kde je zn\u00ed\u017eenie hluku kritick\u00e9.<\/p>\n
Hoci je pr\u00e1\u0161ok BN \u013eahko spracovate\u013en\u00fd materi\u00e1l, jeho n\u00edzka teoretick\u00e1 hustota rob\u00ed v\u00fdrobu hust\u00fdch sypk\u00fdch materi\u00e1lov n\u00e1ro\u010dnou. V tejto experiment\u00e1lnej \u0161t\u00fadii v\u0161ak bola predstaven\u00e1 nov\u00e1 met\u00f3da spekania hexagon\u00e1lneho nitridu b\u00f3ru na dosiahnutie vy\u0161\u0161ej hustoty s pou\u017eit\u00edm kubick\u00e9ho nitridu b\u00f3ru ako spekanej pr\u00edsady.<\/p>\n
Pr\u00e1\u0161ok nitridu b\u00f3ru m\u00e1 vysok\u00fa tepeln\u00fa vodivos\u0165 a m\u00f4\u017ee sa pou\u017ei\u0165 na v\u00fdrobu keramick\u00fdch komponentov, ktor\u00e9 musia odol\u00e1va\u0165 vysok\u00fdm teplot\u00e1m. Okrem toho je chemicky odoln\u00fd vo\u010di kovom a sklu a z\u00e1rove\u0148 sa \u013eahko obr\u00e1ba - v\u0161etky tieto vlastnosti robia z nitridu b\u00f3ru vynikaj\u00facu n\u00e1hradu maz\u00edv v prostred\u00ed spracovania kovov.<\/p>\n
Hexagon\u00e1lny nitrid b\u00f3ru (hBN), podobne ako grafit, mo\u017eno vyrobi\u0165 reakciou b\u00f3ru a dus\u00edka za extr\u00e9mnych podmienok. Pri zahrievan\u00ed sa v\u0161ak hBN men\u00ed na kubick\u00fd nitrid b\u00f3ru, ktor\u00fd m\u00e1 \u0161trukt\u00faru podobn\u00fa diamantu.<\/p>\n
\u0160es\u0165uholn\u00edkov\u00fd nitrid b\u00f3ru je vynikaj\u00facim materi\u00e1lom na ochranu termo\u010dl\u00e1nkov a izola\u010dn\u00fdch obj\u00edmok s n\u00edzkym koeficientom roz\u0165a\u017enosti, vynikaj\u00facou tepelnou vodivos\u0165ou a v\u00fdnimo\u010dnou mazivos\u0165ou.<\/p>\n
Nitrid b\u00f3ru mo\u017eno n\u00e1js\u0165 v mnoh\u00fdch aplik\u00e1ci\u00e1ch, od elektroniky a vysokoteplotn\u00fdch prostred\u00ed a\u017e po leteck\u00fd priemysel. Jeho v\u00fdnimo\u010dn\u00e1 tepeln\u00e1 vodivos\u0165 a chemick\u00e1 inertnos\u0165 umo\u017e\u0148uj\u00fa pokro\u010dil\u00fd v\u00fdkon; okrem toho m\u00e1 vysok\u00fa nosnos\u0165 a d\u00e1 sa \u013eahko obr\u00e1ba\u0165 za tepla na v\u00fdrobu zlo\u017eit\u00fdch dielov.<\/p>\n
V\u00fdroba nitridu b\u00f3ru predstavuje jedine\u010dn\u00fa v\u00fdzvu vzh\u013eadom na jeho hexagon\u00e1lnu \u0161trukt\u00faru do\u0161ti\u010diek; be\u017en\u00e9 met\u00f3dy kontroly kvality m\u00f4\u017eu by\u0165 pre tento materi\u00e1l n\u00e1ro\u010dn\u00e9 alebo dokonca ne\u00fa\u010dinn\u00e9. Prevencia aglomer\u00e1cie sa preto mus\u00ed sta\u0165 prioritou.<\/p>\n
Na rozbitie aglomer\u00e1tov a zachovanie separ\u00e1cie \u010dast\u00edc sa \u010dasto pou\u017e\u00edvaj\u00fa pokro\u010dil\u00e9 spracovate\u013esk\u00e9 techniky, ako s\u00fa ultrazvukov\u00e9 disperg\u00e1tory, mie\u0161anie s vysokou smykovou r\u00fdchlos\u0165ou a \u0161pecializovan\u00e9 techniky mletia, \u010do vedie k lep\u0161ej kompatibilite s matricov\u00fdmi materi\u00e1lmi a rovnomernej distrib\u00facii h-BN do\u0161ti\u010diek.<\/p>\n
Hexagon\u00e1lny nitrid b\u00f3ru (h-BN) sa m\u00f4\u017ee pochv\u00e1li\u0165 pozoruhodn\u00fdmi izola\u010dn\u00fdmi vlastnos\u0165ami, ktor\u00e9 sa vymykaj\u00fa be\u017enej materi\u00e1lovej vede. Keramika BN pon\u00faka tepeln\u00fa vodivos\u0165 porovnate\u013en\u00fa s kovmi a z\u00e1rove\u0148 poskytuje spo\u013eahliv\u00e9 elektrick\u00e9 izola\u010dn\u00e9 vlastnosti, ktor\u00e9 zabra\u0148uj\u00fa elektrick\u00e9mu sledovaniu. V\u010faka t\u00fdmto dvojak\u00fdm vlastnostiam je keramika z nitridu b\u00f3ru neocenite\u013enou zlo\u017ekou v PVD, CVD a plazmov\u00fdch syst\u00e9moch, ktor\u00e9 potrebuj\u00fa spo\u013eahliv\u00e9 izol\u00e1tory proti elektrick\u00e9mu sledovaniu.<\/p>\n
Elektrick\u00e9 sledovanie je \u010doraz \u010dastej\u0161ou pr\u00ed\u010dinou por\u00fach energetick\u00fdch syst\u00e9mov vo vlhkom prostred\u00ed a jeho rast\u00faci v\u00fdskyt podnietil dopyt po materi\u00e1loch, ktor\u00e9 poskytuj\u00fa odolnos\u0165 proti elektrick\u00e9mu sledovaniu v tak\u00fdchto vlhk\u00fdch podmienkach.<\/p>\n
Kompozity z nitridu b\u00f3ru boli vyvinut\u00e9 \u0161peci\u00e1lne na rie\u0161enie t\u00fdchto potrieb a poskytuj\u00fa vynikaj\u00facu odolnos\u0165 vo\u010di sledovaniu vo vlhkom prostred\u00ed, pri\u010dom \u00fa\u010dinne odv\u00e1dzaj\u00fa teplo a pon\u00fakaj\u00fa vynikaj\u00facu odolnos\u0165 vo\u010di kor\u00f3zii. Okrem toho mo\u017eno kry\u0161t\u00e1lov\u00fa \u0161trukt\u00faru h-BN po\u010das v\u00fdroby prisp\u00f4sobi\u0165 tak, aby sa optimalizovala tepeln\u00e1 vodivos\u0165 v konkr\u00e9tnych smeroch a zv\u00fd\u0161il sa v\u00fdkon.<\/p>","protected":false},"excerpt":{"rendered":"
Boron Nitride Powder and Its Applications Boron nitride powder is used in multiple industries to meet growing demands for lighter, […]<\/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":""}},"ngg_post_thumbnail":0,"footnotes":""},"categories":[4],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/boronnitrideceramic.com\/sk\/wp-json\/wp\/v2\/posts\/323"}],"collection":[{"href":"https:\/\/boronnitrideceramic.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/boronnitrideceramic.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/boronnitrideceramic.com\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/boronnitrideceramic.com\/sk\/wp-json\/wp\/v2\/comments?post=323"}],"version-history":[{"count":1,"href":"https:\/\/boronnitrideceramic.com\/sk\/wp-json\/wp\/v2\/posts\/323\/revisions"}],"predecessor-version":[{"id":324,"href":"https:\/\/boronnitrideceramic.com\/sk\/wp-json\/wp\/v2\/posts\/323\/revisions\/324"}],"wp:attachment":[{"href":"https:\/\/boronnitrideceramic.com\/sk\/wp-json\/wp\/v2\/media?parent=323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/boronnitrideceramic.com\/sk\/wp-json\/wp\/v2\/categories?post=323"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/boronnitrideceramic.com\/sk\/wp-json\/wp\/v2\/tags?post=323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}