Alum\u012bnija pulveris ir neaizst\u0101jams kodols un pildviela nanokompoz\u012btiem, k\u0101 ar\u012b svar\u012bgs r\u016bpniecisko katalizatoru atbalsta savienojums. Porainas kv\u0113pi ir neat\u0146emama kosm\u0113tikas l\u012bdzek\u013cu sast\u0101vda\u013ca, jo tie ir biezas konsistences un sp\u0113j absorb\u0113t piemais\u012bjumus, savuk\u0101rt tie ir pamat\u0101 korundam - abraz\u012bvam materi\u0101lam, ko izmanto d\u0101rgakme\u0146u pul\u0113\u0161anai.<\/p>\n
Alum\u012bnija pulveri ieg\u016bst, augst\u0101 temperat\u016br\u0101 kalcin\u0113jot alum\u012bnija hidroks\u012bdu, lai atdal\u012btu \u016bdeni un ieg\u016btu alum\u012bnija oks\u012bdu, p\u0113c tam to apstr\u0101d\u0101 t\u0101l\u0101k, lai ieg\u016btu da\u017e\u0101das formas ar da\u017e\u0101d\u0101m \u012bpa\u0161\u012bb\u0101m un pielietojumu.<\/p>\n
Atkar\u012bb\u0101 no kategorijas alum\u012bnija oks\u012bda strukt\u016bra var b\u016bt no smalkas l\u012bdz rupjai, un tam var b\u016bt da\u017e\u0101di \u0137\u012bmisk\u0101s t\u012br\u012bbas un virsmas laukuma l\u012bme\u0146i. \u0160\u0137iras ar \u013coti zemu piemais\u012bjumu l\u012bmeni sauc par augstas t\u012br\u012bbas pak\u0101pes alum\u012bnija oks\u012bdu (HPA), savuk\u0101rt \u0161\u0137iras ar \u013coti lielu virsmas laukumu sauc par granulveida alum\u012bnija oks\u012bdu (GA) ar zem\u0101ku t\u012br\u012bbas pak\u0101pi.<\/p>\n
Smalkus alum\u012bnija oks\u012bda pulverus var atrast pul\u0113\u0161anas savienojumos un katalizatoru atbalsta materi\u0101los, k\u0101 ar\u012b tos izmanto k\u0101 pildvielu plastmasas un gumijas ra\u017eo\u0161anas procesos. Turkl\u0101t augstas t\u012br\u012bbas pak\u0101pes alum\u012bnija oks\u012bdu izmanto saf\u012bra substr\u0101tu ra\u017eo\u0161an\u0101 elektronisk\u0101m ier\u012bc\u0113m, k\u0101 ar\u012b ar met\u0101la p\u0101rkl\u0101jumu, lai to izmantotu augsttemperat\u016bras lod\u0113\u0161anas mezglos - \u012bsi sakot, tas ir daudzpus\u012bgi izmantojams un darbojas k\u0101 lielisks elektriskais izolators.<\/p>\n
Alum\u012bnija oks\u012bdu var izmantot ar\u012b k\u0101 aizsargp\u0101rkl\u0101jumu r\u016bpniec\u012bbas izstr\u0101d\u0101jumiem un ma\u0161\u012bn\u0101m, pal\u012bdzot aizsarg\u0101t tos pret nodilumu. Pateicoties izcilajai ciet\u012bbai un iztur\u012bbai, alum\u012bnija oks\u012bds ir ide\u0101ls keramikas izolators un substr\u0101ts, k\u0101 ar\u012b t\u0101 termisk\u0101 ietilp\u012bba un augsta ku\u0161anas temperat\u016bra padara to noder\u012bgu ugunsiztur\u012bgu izstr\u0101d\u0101jumu ra\u017eo\u0161an\u0101, ko izmanto, piem\u0113ram, naftas \u0137\u012bmijas r\u016bpniec\u012bb\u0101, cementa ra\u017eo\u0161an\u0101, atkritumu sadedzin\u0101\u0161an\u0101 un dzelzs un t\u0113rauda ra\u017eo\u0161an\u0101. Alum\u012bnija oks\u012bdu var pat sajaukt ar stiklu, lai palielin\u0101tu iztur\u012bbu.<\/p>\n
Alum\u012bnija pulveri izmanto da\u017e\u0101du r\u016bpniec\u012bbas izstr\u0101d\u0101jumu ra\u017eo\u0161an\u0101, piem\u0113ram, keramikas, metalur\u0123ijas, elektronikas un katalizatoru ra\u017eo\u0161an\u0101. Pateicoties t\u0101 termiskaj\u0101m, \u0137\u012bmiskaj\u0101m un meh\u0101niskaj\u0101m \u012bpa\u0161\u012bb\u0101m, alum\u012bnija oks\u012bds ir ide\u0101ls materi\u0101ls ugunsiztur\u012bgajiem materi\u0101liem, sl\u012bp\u0113\u0161anas diskiem un nodilumiztur\u012bgiem lietojumiem, k\u0101 ar\u012b zemam berzes l\u012bmenim, kas to padara piem\u0113rotu nanokompoz\u012btiem ar biolo\u0123isk\u0101s sader\u012bbas pras\u012bb\u0101m.<\/p>\n
Pateicoties augstajam ku\u0161anas punktam un termiskajai pretest\u012bbai, alum\u012bnija oks\u012bdu pla\u0161i izmanto elektrisko ier\u012b\u010du un pusvad\u012bt\u0101ju ra\u017eo\u0161an\u0101. Turkl\u0101t siltumvados to izmanto k\u0101 galveno sast\u0101vda\u013cu, lai izklied\u0113tu elektronisko komponentu rad\u012bto siltumu, un t\u0101 zem\u0101 berze un izol\u0101cijas \u012bpa\u0161\u012bbas padara to par lielisku materi\u0101lu pretapledojuma p\u0101rkl\u0101jumu veido\u0161anai.<\/p>\n
Kalcin\u0113tu alum\u012bnija oks\u012bdu pla\u0161i izmanto naftas \u0137\u012bmijas r\u016bpniec\u012bb\u0101, lai izgatavotu keramiskos proppantus, ko izmanto hidraulisk\u0101 \u0161\u0137el\u0161anas procesa laik\u0101, lai hidraulisk\u0101 \u0161\u0137el\u0161anas procesa (fracking) laik\u0101 saglab\u0101tu plaisas atv\u0113rtas, t\u0101d\u0113j\u0101di pal\u012bdzot og\u013c\u016bde\u0146ra\u017eu ieguvei no pazemes iegul\u0101m.<\/p>\n
T\u012bru (99% alum\u012bnija oks\u012bdu) pla\u0161i izmanto, lai ra\u017eotu ma\u0161\u012bnu un iek\u0101rtu deta\u013cas, kur\u0101m j\u0101b\u016bt iztur\u012bg\u0101m pret nodilumu, vienlaikus efekt\u012bvi izol\u0113jot pret troksni un radi\u0101ciju. \u0160is materi\u0101ls parasti tiek izmantots v\u0101rpst\u0101m, gult\u0146iem, vilces papl\u0101ksn\u0113m un virzu\u013ciem s\u016bk\u0146os, kuros izmanto \u0137\u012bmisk\u0101s vielas, k\u0101 ar\u012b l\u0101zeru komponentiem, elektrooptiskaj\u0101m ier\u012bc\u0113m, pl\u016bsmas m\u0113r\u012bt\u0101ju sensoriem un rentgena iek\u0101rt\u0101m.<\/p>\n
Alum\u012bnijs var tikt p\u0101rvad\u0101ts ar kravas automa\u0161\u012bn\u0101m vai piekab\u0113m, kas \u012bpa\u0161i apr\u012bkotas smagu kravu p\u0101rvad\u0101\u0161anai, pa dzelzce\u013cu, kravas ku\u0123i vai citiem l\u012bdzek\u013ciem, kas paredz\u0113ti beramkravu, piem\u0113ram, alum\u012bnija, p\u0101rvad\u0101\u0161anai.<\/p>\n
Alum\u012bnija oks\u012bds ir neaizst\u0101jams materi\u0101ls daudzos lietojumos, piem\u0113ram, abraz\u012bviem, sa\u0137epin\u0101tiem izstr\u0101d\u0101jumiem, plazmas smidzin\u0101\u0161anas materi\u0101liem un pildviel\u0101m. Turkl\u0101t alum\u012bnija oks\u012bdu var atrast ar\u012b monokrist\u0101lu, katalizatoru un fluoresc\u0113jo\u0161u vielu nes\u0113ju veid\u0101. Da\u017eos alum\u012bnija oks\u012bda izmanto\u0161anas veidos nepiecie\u0161ama t\u0101 augsta t\u012br\u012bba un \u0161aurs da\u013ci\u0146u izm\u0113ru sadal\u012bjums, savuk\u0101rt citos ir nepiecie\u0161ama \u012bpa\u0161a forma; piem\u0113ram, keramikas filtriem, ko izmanto og\u013cu sp\u0113kstacij\u0101s, ir j\u0101b\u016bt ar 100 mikronu diametra alum\u012bnija oks\u012bda pulvera pulveri. D\u016bmg\u0101zu cauru\u013cvadu filtriem optim\u0101lai izmanto\u0161anai ir nepiecie\u0161ams cilindriskas formas pulveris, kura diametrs ir vien\u0101ds ar 100 mikronu diametru.<\/p>\n
Liel\u0101k\u0101 da\u013ca alum\u012bnija oks\u012bda tiek ra\u017eota Baj\u0101ra proces\u0101, kur\u0101 k\u0101 izejvielu izmanto boks\u012btu - zemes miner\u0101lu. Da\u013ca alum\u012bnija oks\u012bda, kas tiek izrakts no zemes un transport\u0113ts uz alum\u012bnija oks\u012bda r\u016bpn\u012bc\u0101m, lai to iz\u0161\u0137\u012bdin\u0101tu ar \u016bdens hidroks\u012bdu \u0161\u0137\u012bdumiem un filtr\u0113tu, p\u0113c tam tiek nos\u016bt\u012bts t\u0101l\u0101k uz alum\u012bnija kaus\u0113tav\u0101m, kur to elektrol\u012bz\u0113 p\u0101rv\u0113r\u0161 alum\u012bnija met\u0101l\u0101; atliku\u0161ie gabali tiek kalcin\u0113ti da\u017e\u0101du keramikas izstr\u0101d\u0101jumu, piem\u0113ram, izolatoru, ugunsiztur\u012bgo materi\u0101lu un abraz\u012bvu, k\u0101 ar\u012b kaulu implantu, kaulu un zobu implantu, k\u0101 ar\u012b laboratorijas piederumu un laboratorijas kr\u0101\u0161\u0146u ugunsiztur\u012bgo oder\u0113jumu izgatavo\u0161anai.<\/p>\n
Alum\u012bnija oks\u012bds ir prece, kas noz\u012bm\u0113, ka t\u0101 cena katru dienu sv\u0101rst\u0101s atkar\u012bb\u0101 no pied\u0101v\u0101juma un piepras\u012bjuma. Ra\u017eot\u0101ji r\u016bp\u012bgi seko l\u012bdzi \u0161ai cenai, lai attiec\u012bgi piel\u0101gotu ra\u017eo\u0161anas izmaksas, un parasti to pieg\u0101d\u0101 neiesai\u0146otu kravas automa\u0161\u012bn\u0101s vai dzelzce\u013ca vagonos; atkar\u012bb\u0101 no transport\u0113\u0161anai nepiecie\u0161am\u0101 att\u0101luma un \u0101truma to var pieg\u0101d\u0101t ar\u012b ar ku\u0123i.<\/p>\n
Alum\u012bnija oks\u012bds ir viens no vispla\u0161\u0101k izmantotajiem in\u017eenierkeramikas veidiem. T\u0101 \u012bpa\u0161\u012bbas padara to cietu, \u0137\u012bmiski inertu un stabilu augst\u0101s temperat\u016br\u0101s, padarot alum\u012bnija oks\u012bda pulveri ide\u0101li piem\u0113rotu nodilumiztur\u012bgu materi\u0101lu un ugunsiztur\u012bgu izstr\u0101d\u0101jumu ra\u017eo\u0161anai da\u017e\u0101diem lietojumiem. Alum\u012bnija oks\u012bdam piem\u012bt ar\u012b izol\u0101cijas un elektrisk\u0101s \u012bpa\u0161\u012bbas; augstas t\u012br\u012bbas pak\u0101pes alum\u012bniju var pat izmantot k\u0101 separatoru starp anodiem un katodiem, lai izvair\u012btos no \u012bssavienojumiem starp \u0161\u012bm baterij\u0101m.<\/p>\n
Alum\u012bnija oks\u012bds ir ar\u012b b\u016btiska izejviela sil\u012bcija pl\u0101k\u0161\u0146u ra\u017eo\u0161an\u0101 mikrosh\u0113m\u0101m un elektroniskaj\u0101m ier\u012bc\u0113m, savuk\u0101rt t\u0101 termisk\u0101s pretest\u012bbas, augst\u0101s vir\u0161anas\/ku\u0161anas temperat\u016bras un lielisk\u0101s elektrovad\u012btsp\u0113jas d\u0113\u013c tas ir b\u016btiska sast\u0101vda\u013ca gaismas diodu (LED) ra\u017eo\u0161an\u0101.<\/p>\n
\u0160aj\u0101 izgudrojum\u0101 aprakst\u012bta metode alum\u012bnija oks\u012bda pulvera parauga piemais\u012bjumu m\u0113r\u012b\u0161anai. \u0160im nol\u016bkam alum\u012bnija oks\u012bda paraugu pak\u013cauj rentgena staru k\u016blim, un p\u0113c tam tiek re\u0123istr\u0113ts t\u0101 difrakcijas le\u0146\u0137is un intensit\u0101te, lai veiktu m\u0113r\u012bjumus. P\u0113c tam var apr\u0113\u0137in\u0101t t\u0101 re\u017e\u0123a konstanti un noteikt korel\u0101ciju starp to un piemais\u012bjumu saturu alum\u012bnija oks\u012bda pulvera paraug\u0101.<\/p>","protected":false},"excerpt":{"rendered":"
Alumina powder is an indispensable core and filler material in nanocomposites, and also serves as an important support compound for […]<\/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":[2],"tags":[],"class_list":["post-7","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/aluminapowder.net\/lv\/wp-json\/wp\/v2\/posts\/7","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aluminapowder.net\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aluminapowder.net\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aluminapowder.net\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aluminapowder.net\/lv\/wp-json\/wp\/v2\/comments?post=7"}],"version-history":[{"count":1,"href":"https:\/\/aluminapowder.net\/lv\/wp-json\/wp\/v2\/posts\/7\/revisions"}],"predecessor-version":[{"id":8,"href":"https:\/\/aluminapowder.net\/lv\/wp-json\/wp\/v2\/posts\/7\/revisions\/8"}],"wp:attachment":[{"href":"https:\/\/aluminapowder.net\/lv\/wp-json\/wp\/v2\/media?parent=7"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminapowder.net\/lv\/wp-json\/wp\/v2\/categories?post=7"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminapowder.net\/lv\/wp-json\/wp\/v2\/tags?post=7"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}