{"id":3905,"date":"2024-03-18T06:10:12","date_gmt":"2024-03-18T06:10:12","guid":{"rendered":"https:\/\/3dp.45612300.xyz\/product\/al-3203-powder\/"},"modified":"2024-03-18T06:10:12","modified_gmt":"2024-03-18T06:10:12","slug":"al-3203-powder","status":"publish","type":"product","link":"https:\/\/3dpmetal.com\/cs\/product\/al-3203-powder\/","title":{"rendered":"Pr\u00e1\u0161ek Al 3203"},"content":{"rendered":"<p><span style=\"vertical-align: inherit;\"><span style=\"vertical-align: inherit;\"><\/p>\n<h2>P\u0159ehled pr\u00e1\u0161ku Al2O3<\/h2>\n<p class=\"whitespace-pre-wrap\">Al2O3 neboli oxid hlinit\u00fd je keramick\u00fd materi\u00e1l zn\u00e1m\u00fd svou vysokou tvrdost\u00ed, vynikaj\u00edc\u00edmi dielektrick\u00fdmi vlastnostmi, \u017e\u00e1ruvzdornost\u00ed, odolnost\u00ed proti ot\u011bru a korozi. Pr\u00e1\u0161kov\u00fd oxid hlinit\u00fd je pr\u00e1\u0161kov\u00e1 forma oxidu hlinit\u00e9ho pou\u017e\u00edvan\u00e1 v r\u016fzn\u00fdch aplikac\u00edch.<\/p>\n<p class=\"whitespace-pre-wrap\">Mezi kl\u00ed\u010dov\u00e9 vlastnosti pr\u00e1\u0161ku Al2O3 pat\u0159\u00ed:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\">Vysok\u00e1 tvrdost a odolnost proti opot\u0159eben\u00ed<\/li>\n<li class=\"whitespace-normal\">Vysok\u00fd bod t\u00e1n\u00ed p\u0159es 2000\u00a1\"C<\/li>\n<li class=\"whitespace-normal\">N\u00edzk\u00e1 elektrick\u00e1 a tepeln\u00e1 vodivost<\/li>\n<li class=\"whitespace-normal\">Vynikaj\u00edc\u00ed odolnost proti teplotn\u00edm \u0161ok\u016fm<\/li>\n<li class=\"whitespace-normal\">Odolnost v\u016f\u010di siln\u00fdm kyselin\u00e1m a z\u00e1sad\u00e1m<\/li>\n<li class=\"whitespace-normal\">N\u00edzk\u00e1 hustota kolem 3,95 g\/cm3<\/li>\n<li class=\"whitespace-normal\">Chemicky inertn\u00ed materi\u00e1l<\/li>\n<li class=\"whitespace-normal\">B\u00edl\u00e1 barva pr\u00e1\u0161ku dostupn\u00e1 v r\u016fzn\u00fdch velikostech \u010d\u00e1stic<\/li>\n<\/ul>\n<h2>Chemick\u00e9 slo\u017een\u00ed pr\u00e1\u0161ku Al2O3<\/h2>\n<p class=\"whitespace-pre-wrap\">Pr\u00e1\u0161ek Al2O3 m\u00e1 n\u00e1sleduj\u00edc\u00ed chemick\u00e9 slo\u017een\u00ed:<\/p>\n<table>\n<thead>\n<tr>\n<th>Slo\u017een\u00e9<\/th>\n<th>Vzorec<\/th>\n<th>Hmotnostn\u00ed %<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Oxid hlinit\u00fd<\/td>\n<td>Al2O3<\/td>\n<td>99,5 % min<\/td>\n<\/tr>\n<tr>\n<td>Oxid k\u0159emi\u010dit\u00fd<\/td>\n<td>SiO2<\/td>\n<td>Maxim\u00e1ln\u011b 0,05 %<\/td>\n<\/tr>\n<tr>\n<td>Oxid \u017eelezit\u00fd<\/td>\n<td>Fe2O3<\/td>\n<td>max. 0,08%<\/td>\n<\/tr>\n<tr>\n<td>Oxid titani\u010dit\u00fd<\/td>\n<td>TiO2<\/td>\n<td>max. 0,03 %<\/td>\n<\/tr>\n<tr>\n<td>Oxid sodn\u00fd<\/td>\n<td>Na2O<\/td>\n<td>Maxim\u00e1ln\u011b 0,05 %<\/td>\n<\/tr>\n<tr>\n<td>Oxid ho\u0159e\u010dnat\u00fd<\/td>\n<td>MgO<\/td>\n<td>max. 0,03 %<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p class=\"whitespace-pre-wrap\">Vysoce \u010dist\u00fd pr\u00e1\u0161ek Al2O3 obsahuje jako hlavn\u00ed slo\u017eku v\u00edce ne\u017e 99,5% oxidu hlinit\u00e9ho. Maxim\u00e1ln\u00ed limity ne\u010distot jsou stanoveny pro oxid k\u0159emi\u010dit\u00fd, oxid \u017eelezit\u00fd, titani\u010dit\u00fd a dal\u0161\u00ed oxidy.<\/p>\n<h2>Vlastnosti pr\u00e1\u0161ku Al2O3<\/h2>\n<p class=\"whitespace-pre-wrap\">Pr\u00e1\u0161ek Al2O3 vykazuje n\u00e1sleduj\u00edc\u00ed kl\u00ed\u010dov\u00e9 vlastnosti:<\/p>\n<table>\n<thead>\n<tr>\n<th>Nemovitost<\/th>\n<th>Hodnota<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Teplota t\u00e1n\u00ed<\/td>\n<td>2050\u00a1\"C<\/td>\n<\/tr>\n<tr>\n<td>Hustota<\/td>\n<td>3,95 g\/cm3<\/td>\n<\/tr>\n<tr>\n<td>Tvrdost<\/td>\n<td>9 Mohs<\/td>\n<\/tr>\n<tr>\n<td>Pevnost v ohybu<\/td>\n<td>330 MPa<\/td>\n<\/tr>\n<tr>\n<td>Tlakov\u00e1 pevnost<\/td>\n<td>2600 MPa<\/td>\n<\/tr>\n<tr>\n<td>Porozita<\/td>\n<td>M\u00e9n\u011b ne\u017e 1 %<\/td>\n<\/tr>\n<tr>\n<td>Tepeln\u00e1 vodivost<\/td>\n<td>30 W\/m.K<\/td>\n<\/tr>\n<tr>\n<td>Elektrick\u00fd odpor<\/td>\n<td>&gt;1014 ohm.cm<\/td>\n<\/tr>\n<tr>\n<td>Dielektrick\u00e1 pevnost<\/td>\n<td>15-35 kV\/mm<\/td>\n<\/tr>\n<tr>\n<td>Absorpce vody<\/td>\n<td>0%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-1409 aligncenter\" src=\"https:\/\/met3dp.com\/wp-content\/uploads\/2023\/09\/ed7a94ec-3c10-4b1b-87ed--300x300.jpg\" alt=\"Pr\u00e1\u0161ek Al 3203\" width=\"300\" height=\"300\" title=\"\"><\/p>\n<p class=\"whitespace-pre-wrap\">D\u00edky velmi vysok\u00e9mu bodu t\u00e1n\u00ed, tvrdosti, pevnosti a dielektrick\u00e9 pevnosti je oxid hlinit\u00fd vhodn\u00fd pro pou\u017eit\u00ed jako brusivo, \u017e\u00e1ruvzdorn\u00e9 materi\u00e1ly, keramika a elektrick\u00e9 izol\u00e1tory. M\u00e1 velmi n\u00edzkou p\u00f3rovitost a nulovou absorpci vody.<\/p>\n<h2>Metody v\u00fdroby pr\u00e1\u0161ku Al2O3<\/h2>\n<p class=\"whitespace-pre-wrap\">Mezi b\u011b\u017en\u00e9 metody v\u00fdroby pr\u00e1\u0161ku Al2O3 pat\u0159\u00ed:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\"><strong>Proces Bayer<\/strong>?- Trihydr\u00e1t oxidu hlinit\u00e9ho se z\u00edsk\u00e1v\u00e1 z bauxitov\u00e9 rudy a tepeln\u011b se p\u0159em\u011b\u0148uje na pr\u00e1\u0161kov\u00fd oxid hlinit\u00fd. T\u00edmto procesem se z\u00edsk\u00e1v\u00e1 pr\u00e1\u0161ek vysok\u00e9 \u010distoty.<\/li>\n<li class=\"whitespace-normal\"><strong>Hall\u016fv proces<\/strong>?- Hlin\u00edk se rozpou\u0161t\u00ed v roztaven\u00e9m kryolitu a elektrolyzuje se za \u00fa\u010delem v\u00fdroby hlin\u00edku. Pr\u00e1\u0161kov\u00fd oxid hlinit\u00fd se z\u00edsk\u00e1v\u00e1 jako vedlej\u0161\u00ed produkt.<\/li>\n<li class=\"whitespace-normal\"><strong>Kalcinace<\/strong>?- Dehydratace a kalcinace r\u016fzn\u00fdch hydroxid\u016f hlin\u00edku za vzniku pr\u00e1\u0161kov\u00e9ho oxidu hlinit\u00e9ho.<\/li>\n<li class=\"whitespace-normal\"><strong>Sol-gel<\/strong>?- Hlinit\u00fd gel se vytv\u00e1\u0159\u00ed z alkoxid\u016f nebo dusi\u010dnan\u016f hlin\u00edku a pot\u00e9 se su\u0161\u00ed a kalcinuje, aby se z n\u011bj vytvo\u0159il pr\u00e1\u0161kov\u00fd oxid hlinit\u00fd v nanorozm\u011brech.<\/li>\n<li class=\"whitespace-normal\"><strong>Pyrol\u00fdza plamenem<\/strong>?- Spalov\u00e1n\u00edm chloridu hlinit\u00e9ho v plynn\u00e9 f\u00e1zi vznik\u00e1 ultrajemn\u00fd pr\u00e1\u0161ek oxidu hlinit\u00e9ho.<\/li>\n<\/ul>\n<p class=\"whitespace-pre-wrap\">Bayer\u016fv proces je nejb\u011b\u017en\u011bj\u0161\u00ed pr\u016fmyslovou metodou, zat\u00edmco ostatn\u00ed metody poskytuj\u00ed speci\u00e1ln\u00ed oxid hlinit\u00fd.<\/p>\n<h2>Aplikace pr\u00e1\u0161ku Al2O3<\/h2>\n<p class=\"whitespace-pre-wrap\">Mezi kl\u00ed\u010dov\u00e9 aplikace pr\u00e1\u0161ku Al2O3 pat\u0159\u00ed:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\"><strong>Abraziva<\/strong>?- Pro brou\u0161en\u00ed, brou\u0161en\u00ed, le\u0161t\u011bn\u00ed a trysk\u00e1n\u00ed d\u00edky sv\u00e9 tvrdosti.<\/li>\n<li class=\"whitespace-normal\"><strong>\u017d\u00e1ruvzdorn\u00e9 materi\u00e1ly<\/strong>?- Vysokoteplotn\u00ed vyzd\u00edvky pec\u00ed, keramika, \u0161amotov\u00e9 cihly pro metalurgii, skl\u00e1\u0159sk\u00fd a cement\u00e1\u0159sk\u00fd pr\u016fmysl.<\/li>\n<li class=\"whitespace-normal\"><strong>Keramika<\/strong>?- Elektrick\u00e9, konstruk\u010dn\u00ed a biomedic\u00ednsk\u00e9 aplikace s vyu\u017eit\u00edm keramiky oxidu hlinit\u00e9ho.<\/li>\n<li class=\"whitespace-normal\"><strong>Katalyz\u00e1tory<\/strong>?- Gama oxid hlinit\u00fd pou\u017eit\u00fd jako nosi\u010d katalyz\u00e1toru a p\u0159\u00edmo jako katalyz\u00e1tor.<\/li>\n<li class=\"whitespace-normal\"><strong>N\u00e1t\u011bry<\/strong>?- Tepeln\u011b st\u0159\u00edkan\u00e9 povlaky pro ochranu proti opot\u0159eben\u00ed a korozi.<\/li>\n<li class=\"whitespace-normal\"><strong>Le\u0161t\u011bn\u00ed<\/strong>?- CMP suspenze pro le\u0161t\u011bn\u00ed k\u0159em\u00edkov\u00fdch desti\u010dek, optick\u00fdch sou\u010d\u00e1stek a kov\u016f.<\/li>\n<li class=\"whitespace-normal\"><strong>V\u00fdpl\u0148ov\u00e9 materi\u00e1ly<\/strong>?- P\u0159id\u00e1v\u00e1 se do plast\u016f, pry\u017ee a pap\u00edru za \u00fa\u010delem zlep\u0161en\u00ed mechanick\u00fdch vlastnost\u00ed.<\/li>\n<li class=\"whitespace-normal\"><strong>Kosmetika<\/strong>?- Pro v\u00fdrobu make-upu, v\u00fdrobk\u016f osobn\u00ed p\u00e9\u010de.<\/li>\n<\/ul>\n<h2>Specifikace pr\u00e1\u0161ku Al2O3<\/h2>\n<p class=\"whitespace-pre-wrap\">Pr\u00e1\u0161ek Al2O3 je k dispozici v r\u016fzn\u00fdch stupn\u00edch \u010distoty, distribuci velikosti \u010d\u00e1stic a t\u0159\u00edd\u00e1ch:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\"><strong>\u010cistota<\/strong>?- Od pr\u016fmyslov\u00fdch (90%) a\u017e po vysoce \u010dist\u00e9 (99,99%) t\u0159\u00eddy podle obsahu ne\u010distot.<\/li>\n<li class=\"whitespace-normal\"><strong>Velikost \u010d\u00e1stic<\/strong>?- Od nanorozm\u011bru (10-50 nm) a\u017e po hrub\u00fd stupe\u0148 (v\u00edce ne\u017e 100 mikron\u016f).<\/li>\n<li class=\"whitespace-normal\"><strong>F\u00e1ze<\/strong>?- F\u00e1ze alfa, gama, theta a delta maj\u00ed r\u016fzn\u00e9 vlastnosti.<\/li>\n<li class=\"whitespace-normal\"><strong>T\u0159\u00eddy<\/strong>?- V souladu s normami pro brusiva, technickou keramiku, biokeramiku atd.<\/li>\n<li class=\"whitespace-normal\"><strong>Povrchov\u00e1 plocha<\/strong>?- U pr\u00e1\u0161ku o velikosti nano je plocha povrchu 1-100 m2\/g.<\/li>\n<li class=\"whitespace-normal\"><strong>Morphologie<\/strong>?- Up\u0159ednost\u0148uj\u00ed se \u010d\u00e1stice pravideln\u00e9ho a kulovit\u00e9ho tvaru.<\/li>\n<li class=\"whitespace-normal\"><strong>APLIKACE<\/strong>?- Pr\u00e1\u0161ek na m\u00edru pro kompozity, 3D tisk a dal\u0161\u00ed pou\u017eit\u00ed.<\/li>\n<\/ul>\n<h2>Glob\u00e1ln\u00ed dodavatel\u00e9 pr\u00e1\u0161ku Al2O3<\/h2>\n<p class=\"whitespace-pre-wrap\">Mezi hlavn\u00ed dodavatele na cel\u00e9m sv\u011bt\u011b pat\u0159\u00ed:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\">Almatis (USA)<\/li>\n<li class=\"whitespace-normal\">Baikowski (Francie)<\/li>\n<li class=\"whitespace-normal\">Nippon Light Metal (Japonsko)<\/li>\n<li class=\"whitespace-normal\">Sumitomo Chemical (Japonsko)<\/li>\n<li class=\"whitespace-normal\">Sasol (Jihoafrick\u00e1 republika)<\/li>\n<li class=\"whitespace-normal\">Evonik (N\u011bmecko)<\/li>\n<li class=\"whitespace-normal\">Micron Metals (USA)<\/li>\n<li class=\"whitespace-normal\">Nanoshel (USA)<\/li>\n<\/ul>\n<p class=\"whitespace-pre-wrap\">Tyto spole\u010dnosti vyr\u00e1b\u011bj\u00ed r\u016fzn\u00e9 druhy pr\u00e1\u0161ku Al2O3 pro r\u016fzn\u00e9 aplikace od brusiv po nanotechnologie.<\/p>\n<h2>Ceny pr\u00e1\u0161ku Al2O3<\/h2>\n<p class=\"whitespace-pre-wrap\">Cena pr\u00e1\u0161ku Al2O3 z\u00e1vis\u00ed na:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\">\u010cistota a jakost<\/li>\n<li class=\"whitespace-normal\">Velikost \u010d\u00e1stic a povrch<\/li>\n<li class=\"whitespace-normal\">N\u00e1kupn\u00ed mno\u017estv\u00ed<\/li>\n<li class=\"whitespace-normal\">Charakteristika pr\u00e1\u0161k\u016f<\/li>\n<li class=\"whitespace-normal\">Dodavatel a lokalita<\/li>\n<\/ul>\n<table>\n<thead>\n<tr>\n<th>Hodnost<\/th>\n<th>Cenov\u00e9 rozp\u011bt\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Pr\u016fmyslov\u00fd<\/td>\n<td>$5-10 za kg<\/td>\n<\/tr>\n<tr>\n<td>Technick\u00e1 str\u00e1nka<\/td>\n<td>$10-50 za kg<\/td>\n<\/tr>\n<tr>\n<td>Vysok\u00e1 \u010distota<\/td>\n<td>$50-500 za kg<\/td>\n<\/tr>\n<tr>\n<td>Nanopr\u00e1\u0161ek<\/td>\n<td>$100-1000 za kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p class=\"whitespace-pre-wrap\">Obecn\u011b plat\u00ed, \u017ee specializovan\u00e9 pr\u00e1\u0161ky s vysokou \u010distotou a nanom\u011b\u0159\u00edtkem maj\u00ed vy\u0161\u0161\u00ed ceny ne\u017e pr\u016fmyslov\u00e9 komodity.<\/p>\n<h2>Bezpe\u010dnost a ochrana zdrav\u00ed p\u0159i manipulaci s pr\u00e1\u0161kem Al2O3<\/h2>\n<p class=\"whitespace-pre-wrap\">Pr\u00e1\u0161ek Al2O3 nep\u0159edstavuje v\u00e1\u017en\u00e9 zdravotn\u00ed a bezpe\u010dnostn\u00ed riziko, ale je t\u0159eba dodr\u017eovat standardn\u00ed bezpe\u010dnostn\u00ed opat\u0159en\u00ed:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\">P\u0159i manipulaci pou\u017e\u00edvejte protiprachov\u00e9 masky nebo respir\u00e1tory, abyste se vyhnuli vdechov\u00e1n\u00ed jemn\u00fdch \u010d\u00e1stic.<\/li>\n<li class=\"whitespace-normal\">P\u0159i manipulaci s pr\u00e1\u0161kem pou\u017e\u00edvejte ochrann\u00e9 br\u00fdle a rukavice.<\/li>\n<li class=\"whitespace-normal\">Zabra\u0148te kontaktu s poko\u017ekou, aby nedo\u0161lo k jej\u00edmu vysu\u0161en\u00ed a podr\u00e1\u017ed\u011bn\u00ed.<\/li>\n<li class=\"whitespace-normal\">Zamezte vzniku a vdechov\u00e1n\u00ed prachu ve vzduchu. Zajist\u011bte dostate\u010dn\u00e9 v\u011btr\u00e1n\u00ed.<\/li>\n<li class=\"whitespace-normal\">S pr\u00e1\u0161kem manipulujte a skladujte jej opatrn\u011b, aby se nerozpt\u00fdlil ve vzduchu.<\/li>\n<li class=\"whitespace-normal\">Spr\u00e1vn\u011b zlikvidujte odpadn\u00ed pr\u00e1\u0161ek v souladu s p\u0159edpisy na ochranu \u017eivotn\u00edho prost\u0159ed\u00ed.<\/li>\n<li class=\"whitespace-normal\">\u00dapln\u00e9 \u00fadaje o nebezpe\u010dnosti pro zdrav\u00ed naleznete v bezpe\u010dnostn\u00edm listu materi\u00e1lu (MSDS) dodan\u00e9m dodavatelem.<\/li>\n<\/ul>\n<h2>Kontrola a zkou\u0161en\u00ed pr\u00e1\u0161ku Al2O3<\/h2>\n<p class=\"whitespace-pre-wrap\">Kl\u00ed\u010dov\u00e9 zkou\u0161ky prov\u00e1d\u011bn\u00e9 pro kontrolu kvality pr\u00e1\u0161ku Al2O3 jsou:<\/p>\n<ul class=\"list-disc pl-8 space-y-2\">\n<li class=\"whitespace-normal\">Chemick\u00e1 anal\u00fdza pomoc\u00ed rentgenov\u00e9 fluorescence (XRF) nebo techniky induk\u010dn\u011b v\u00e1zan\u00e9ho plazmatu (ICP), aby se zajistilo, \u017ee slo\u017een\u00ed odpov\u00edd\u00e1 specifikac\u00edm.<\/li>\n<li class=\"whitespace-normal\">Anal\u00fdza velikosti \u010d\u00e1stic pomoc\u00ed laserov\u00e9 difrakce nebo metody dynamick\u00e9ho rozptylu sv\u011btla.<\/li>\n<li class=\"whitespace-normal\">Skenovac\u00ed elektronov\u00e1 mikroskopie (SEM) ke zkoum\u00e1n\u00ed morfologie \u010d\u00e1stic.<\/li>\n<li class=\"whitespace-normal\">M\u011b\u0159en\u00ed specifick\u00e9ho povrchu pomoc\u00ed techniky absorpce plynu.<\/li>\n<li class=\"whitespace-normal\">Rentgenov\u00e1 difrak\u010dn\u00ed anal\u00fdza (XRD) ke stanoven\u00ed p\u0159\u00edtomn\u00fdch f\u00e1z\u00ed.<\/li>\n<li class=\"whitespace-normal\">Anal\u00fdza ne\u010distot stopov\u00fdch kovov\u00fdch prvk\u016f pomoc\u00ed hmotnostn\u00ed spektrometrie ICP.<\/li>\n<li class=\"whitespace-normal\">\u00dabytek hmotnosti p\u0159i zap\u00e1len\u00ed p\u0159i zah\u0159\u00e1t\u00ed na 1000\u2032\"C.<\/li>\n<li class=\"whitespace-normal\">M\u011b\u0159en\u00ed hustoty pyknometrickou metodou.<\/li>\n<\/ul>\n<p class=\"whitespace-pre-wrap\">D\u016fkladn\u00e1 kontrola a testov\u00e1n\u00ed zaji\u0161\u0165uj\u00ed, \u017ee pr\u00e1\u0161ek spl\u0148uje po\u017eadavky na kvalitu a v\u00fdkonnost konkr\u00e9tn\u00edch aplikac\u00ed.<\/p>\n<h2>Srovn\u00e1n\u00ed \u00cf\"-Al2O3 a \u00ce\u00db-Al2O3 pr\u00e1\u0161ku<\/h2>\n<p class=\"whitespace-pre-wrap\">\u00cf\"-Al2O3 a \u00ce\u00db-Al2O3 jsou dv\u011b b\u011b\u017en\u00e9 f\u00e1ze pr\u00e1\u0161kov\u00e9ho oxidu hlinit\u00e9ho, kter\u00e9 jsou zde porovn\u00e1v\u00e1ny:<\/p>\n<table>\n<thead>\n<tr>\n<th>Parametr<\/th>\n<th>\u00cf\"-Al2O3<\/th>\n<th>\u00ce\u00db-Al2O3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Krystalov\u00e1 struktura<\/td>\n<td>\u0160estihrann\u00e9<\/td>\n<td>Cubic<\/td>\n<\/tr>\n<tr>\n<td>Hustota<\/td>\n<td>3,95 g\/cm3<\/td>\n<td>3,65 g\/cm3<\/td>\n<\/tr>\n<tr>\n<td>Tvrdost<\/td>\n<td>9 Mohs<\/td>\n<td>8 Mohs<\/td>\n<\/tr>\n<tr>\n<td>Teplota t\u00e1n\u00ed<\/td>\n<td>2050\u00a1\"C<\/td>\n<td>~1100\u00a1\"C<\/td>\n<\/tr>\n<tr>\n<td>Tepeln\u00e1 vodivost<\/td>\n<td>30 W\/m.K<\/td>\n<td>5-10 W\/m.K<\/td>\n<\/tr>\n<tr>\n<td>Plocha povrchu<\/td>\n<td>&lt;10 m2\/g<\/td>\n<td>100-300 m2\/g<\/td>\n<\/tr>\n<tr>\n<td>APLIKACE<\/td>\n<td>Brusiva, keramika<\/td>\n<td>Katalyz\u00e1tory, adsorbenty<\/td>\n<\/tr>\n<tr>\n<td>Cena<\/td>\n<td>Niz\u0161\u00ed<\/td>\n<td>Vy\u0161\u0161\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p class=\"whitespace-pre-wrap\">\u00cf\"-Al2O3 m\u00e1 vy\u0161\u0161\u00ed tvrdost, hustotu, tepelnou vodivost a \u017e\u00e1ruvzdornost, zat\u00edmco \u00ce\u00db-Al2O3 m\u00e1 vy\u0161\u0161\u00ed povrch a hojn\u011b se pou\u017e\u00edv\u00e1 v katalyz\u00e1torech. \u00cf\"-forma m\u00e1 \u0161ir\u0161\u00ed pou\u017eit\u00ed a ni\u017e\u0161\u00ed cenu.<\/p>\n<h2>\u010cast\u00e9 dotazy<\/h2>\n<p class=\"whitespace-pre-wrap\"><strong>Ot\u00e1zka: K \u010demu se pou\u017e\u00edv\u00e1 pr\u00e1\u0161ek Al2O3?<\/strong><\/p>\n<p class=\"whitespace-pre-wrap\">Odpov\u011b\u010f: Pr\u00e1\u0161ek Al2O3 se d\u00edky sv\u00e9 vysok\u00e9 tvrdosti, pevnosti a odolnosti proti korozi pou\u017e\u00edv\u00e1 k v\u00fdrob\u011b brusiva, \u017e\u00e1ruvzdorn\u00fdch materi\u00e1l\u016f, struktur\u00e1ln\u00ed keramiky, keramick\u00fdch povlak\u016f, le\u0161tic\u00edch sm\u011bs\u00ed, plastov\u00fdch a pry\u017eov\u00fdch plniv a dal\u0161\u00edch aplikac\u00ed.<\/p>\n<p class=\"whitespace-pre-wrap\"><strong>Ot\u00e1zka: Jak\u00fd je rozd\u00edl mezi b\u00edl\u00fdm, r\u016f\u017eov\u00fdm a hn\u011bd\u00fdm pr\u00e1\u0161kov\u00fdm oxidem hlinit\u00fdm?<\/strong><\/p>\n<p class=\"whitespace-pre-wrap\">Odpov\u011b\u010f: B\u00edl\u00fd oxid hlinit\u00fd je vysoce \u010dist\u00fd Al2O3. R\u016f\u017eov\u00fd a hn\u011bd\u00fd oxid hlinit\u00fd obsahuj\u00ed mal\u00e9 mno\u017estv\u00ed oxid\u016f chromu a \u017eeleza, kter\u00e9 dod\u00e1vaj\u00ed barvu. B\u00edl\u00fd oxid hlinit\u00fd se pou\u017e\u00edv\u00e1, pokud je t\u0159eba zabr\u00e1nit barevn\u00e9 kontaminaci.<\/p>\n<p class=\"whitespace-pre-wrap\"><strong>Ot\u00e1zka: Je pr\u00e1\u0161ek Al2O3 nebezpe\u010dn\u00fd?<\/strong><\/p>\n<p class=\"whitespace-pre-wrap\">Odpov\u011b\u010f: Pr\u00e1\u0161ek Al2O3 nen\u00ed obecn\u011b klasifikov\u00e1n jako nebezpe\u010dn\u00fd materi\u00e1l, ale stejn\u011b jako v\u0161echny jemn\u00e9 pr\u00e1\u0161ky m\u016f\u017ee p\u0159i manipulaci zp\u016fsobit podr\u00e1\u017ed\u011bn\u00ed a probl\u00e9my s d\u00fdch\u00e1n\u00edm. Doporu\u010duje se pou\u017e\u00edvat vhodn\u00e9 osobn\u00ed ochrann\u00e9 prost\u0159edky.<\/p>\n<p class=\"whitespace-pre-wrap\"><strong>Ot\u00e1zka: Jak\u00fd je rozd\u00edl mezi taven\u00fdm a slinut\u00fdm pr\u00e1\u0161kov\u00fdm oxidem hlinit\u00fdm?<\/strong><\/p>\n<p class=\"whitespace-pre-wrap\">Odpov\u011b\u010f: Taven\u00fd oxid hlinit\u00fd se vyr\u00e1b\u00ed taven\u00edm \u010dist\u00e9ho oxidu hlinit\u00e9ho, zat\u00edmco slinut\u00fd typ se vyr\u00e1b\u00ed zhutn\u011bn\u00edm a vyp\u00e1len\u00edm pr\u00e1\u0161kov\u00e9ho oxidu hlinit\u00e9ho. Taven\u00fd oxid hlinit\u00fd m\u00e1 ve srovn\u00e1n\u00ed se slinut\u00fdm vy\u0161\u0161\u00ed \u010distotu a hustotu.<\/p>\n<p class=\"whitespace-pre-wrap\"><strong>Ot\u00e1zka: Kde mohu koupit pr\u00e1\u0161ek Al2O3 pro v\u00fdrobu keramick\u00fdch sou\u010d\u00e1stek?<\/strong><\/p>\n<p class=\"whitespace-pre-wrap\">Odpov\u011b\u010f: Vysoce \u010dist\u00fd jemn\u00fd pr\u00e1\u0161kov\u00fd oxid hlinit\u00fd pro keramick\u00e9 aplikace lze zakoupit od p\u0159edn\u00edch dodavatel\u016f, jako jsou spole\u010dnosti Almatis, Baikowski a Micron Metals. Ujist\u011bte se, \u017ee pr\u00e1\u0161ek spl\u0148uje specifikace pro va\u0161i aplikaci.<\/p>\n<div id=\"gtx-trans\" style=\"position: absolute; left: 151px; top: 62.0069px;\">\n<div class=\"gtx-trans-icon\"><\/div>\n<\/div>\n<p><\/span><\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>P\u0159ehled pr\u00e1\u0161ku Al2O3 Al2O3 neboli oxid hlinit\u00fd je keramick\u00fd materi\u00e1l zn\u00e1m\u00fd svou vysokou tvrdost\u00ed, vynikaj\u00edc\u00edmi dielektrick\u00fdmi vlastnostmi, \u017e\u00e1ruvzdornost\u00ed, odolnost\u00ed proti ot\u011bru a korozi. Pr\u00e1\u0161kov\u00fd oxid hlinit\u00fd je pr\u00e1\u0161kov\u00e1 forma oxidu hlinit\u00e9ho pou\u017e\u00edvan\u00e1 v r\u016fzn\u00fdch aplikac\u00edch. Mezi kl\u00ed\u010dov\u00e9 vlastnosti pr\u00e1\u0161kov\u00e9ho Al2O3 pat\u0159\u00ed: Vysok\u00e1 tvrdost a odolnost proti opot\u0159eben\u00ed Vysok\u00e1 teplota t\u00e1n\u00ed...<\/p>","protected":false},"featured_media":1812,"parent":0,"template":"","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product-category":[119,124],"class_list":["post-3905","product","type-product","status-publish","has-post-thumbnail","hentry","product-category-3d-printing-metal-powder","product-category-aluminum-based-alloy-powder"],"acf":[],"taxonomy_info":{"product-category":[{"value":119,"label":"3D Printing Metal Powder"},{"value":124,"label":"Aluminum Based Alloy Powder"}]},"featured_image_src_large":["https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/02\/Al-3203-powder.jpg",600,600,false],"author_info":[],"comment_info":"","_links":{"self":[{"href":"https:\/\/3dpmetal.com\/cs\/wp-json\/wp\/v2\/product\/3905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3dpmetal.com\/cs\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/3dpmetal.com\/cs\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3dpmetal.com\/cs\/wp-json\/wp\/v2\/media\/1812"}],"wp:attachment":[{"href":"https:\/\/3dpmetal.com\/cs\/wp-json\/wp\/v2\/media?parent=3905"}],"wp:term":[{"taxonomy":"product-category","embeddable":true,"href":"https:\/\/3dpmetal.com\/cs\/wp-json\/wp\/v2\/product-category?post=3905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}