Alum\u012bnija oks\u012bda keramikas izstr\u0101d\u0101jumiem piem\u012bt fizik\u0101l\u0101s, meh\u0101nisk\u0101s un elektrisk\u0101s \u012bpa\u0161\u012bbas, kas padara tos piem\u0113rotus da\u017e\u0101diem r\u016bpnieciskajiem pielietojumiem, tostarp nodiluma uzga\u013ciem un asins v\u0101rstiem, elektrisko savienot\u0101ju korpusiem, herm\u0113tiskajiem bl\u012bv\u0113m, augstsprieguma caurul\u012b\u0161u savienojumiem un keramikas un met\u0101la cietlod\u0113\u0161anas mezgliem. Tiem piem\u012bt augsta iztur\u012bba un ciet\u012bba, k\u0101 ar\u012b izcila \u0137\u012bmisk\u0101, erozijas un korozijas iztur\u012bba, turkl\u0101t tiem ir zems siltuma izple\u0161an\u0101s koeficients, kas \u013cauj iztur\u0113t augstas temperat\u016bras.<\/p>\n
K\u0101 keramikas materi\u0101ls alum\u012bnija oks\u012bds izce\u013cas ar izcilu ciet\u012bbu; t\u0101 Mosa ciet\u012bba ir 9, kas tuvin\u0101s dimanta ciet\u012bbai, t\u0101p\u0113c tas sp\u0113j iztur\u0113t iev\u0113rojamu sp\u0113ku un spiedienu, nepl\u012bstot zem spiediena. Alum\u012bnija oks\u012bdam piem\u012bt ar\u012b lieliska stiepes iztur\u012bba un elast\u012bba, kas to padara piem\u0113rotu izmanto\u0161anai pras\u012bg\u0101s jom\u0101s.<\/p>\n
Alum\u012bnija oks\u012bdam piem\u012bt izcilas korozijas iztur\u012bbas un termisk\u0101s stabilit\u0101tes \u012bpa\u0161\u012bbas, t\u0101d\u0113\u013c tas ir piem\u0113rots \u0137\u012bmiski jut\u012bg\u0101m nozar\u0113m, piem\u0113ram, elektronikas vai automobi\u013cu ra\u017eo\u0161anai. Turkl\u0101t t\u0101 zemais izple\u0161an\u0101s koeficients nodro\u0161ina precizit\u0101ti un vienm\u0113r\u012bgumu ra\u017eo\u0161anas procesos.<\/p>\n
Alum\u012bnija oks\u012bds ir ide\u0101ls materi\u0101ls augstas precizit\u0101tes lietojumiem, kuros nepiecie\u0161amas gludas virsmas, pateicoties t\u0101 pa\u0161sm\u0113r\u0113jo\u0161aj\u0101m \u012bpa\u0161\u012bb\u0101m, kas pal\u012bdz samazin\u0101t berzi un iek\u0101rtu nodilumu, pagarin\u0101t to kalpo\u0161anas laiku un vienlaikus uzlabot veiktsp\u0113ju. Turkl\u0101t, pateicoties \u0101rk\u0101rt\u012bgi zemajam siltuma izple\u0161an\u0101s koeficientam, alum\u012bnija oks\u012bds ir ide\u0101la materi\u0101la izv\u0113le prec\u012bzijas izstr\u0101d\u0101jumiem un deta\u013c\u0101m ar stabiliem izm\u0113riem.<\/p>\n
Atkar\u012bb\u0101 no j\u016bsu lietojuma vajadz\u012bb\u0101m ir pieejams pla\u0161s alum\u012bnija oks\u012bda veidu kl\u0101sts. 99,5 % t\u012br\u012bbas pak\u0101pes alum\u012bnija oks\u012bds ir lieliska izv\u0113le izmanto\u0161anai metaliz\u0113tos izstr\u0101d\u0101jumos, jo tam piem\u012bt augsta spiedes un lieces iztur\u012bba, k\u0101 ar\u012b izcila herm\u0113tiskums, t\u0101d\u0113\u013c tas ir piem\u0113rots keramikas un met\u0101la cietlod\u0113\u0161anas savienojumiem, medic\u012bnas ier\u012bc\u0113m, rentgena caurul\u0113m un elektronu mikroskopiem.<\/p>\n
Alum\u012bnija oks\u012bda keramikas ra\u017eo\u0161an\u0101, \u0146emot v\u0113r\u0101 t\u0101s lielo \u012bpatn\u0113jo svaru, ir j\u0101izmanto atbilsto\u0161s form\u0113\u0161anas process. Ja pulveris pirms apdedzin\u0101\u0161anas s\u0101kuma nav labi sabl\u012bv\u0113ts, var rasties sarau\u0161an\u0101s, kas var\u0113tu apdraud\u0113t fizik\u0101l\u0101s \u012bpa\u0161\u012bbas un negat\u012bvi ietekm\u0113t to sniegumu. \u0160o keramikas veidu ra\u017eo\u0161anai tiek izmantotas da\u017e\u0101das metodes, piem\u0113ram, saus\u0101 pres\u0113\u0161ana, aukst\u0101 izost\u0101tisk\u0101 pres\u0113\u0161ana (CIP), injekcijas pres\u0113\u0161ana un lie\u0161ana, un katrai no t\u0101m ir savas priek\u0161roc\u012bbas un tr\u016bkumi; vis\u0101s \u0161aj\u0101s metod\u0113s tiek piem\u0113rots spiediens no vair\u0101kiem virzieniem, lai nodro\u0161in\u0101tu lab\u0101ku sabl\u012bv\u0113\u0161anos un \u013cautu veidot sare\u017e\u0123\u012bt\u0101kas formas.<\/p>\n
Alum\u012bnija oks\u012bda keramikas ciet\u012bba nodro\u0161ina tai augstu iztur\u012bbu pret nodilumu, triecieniem un koroziju, savuk\u0101rt t\u0101s \u0137\u012bmisk\u0101 inercija un iztur\u012bba pret augst\u0101m temperat\u016br\u0101m padara to par labu materi\u0101la izv\u0113li izmanto\u0161anai k\u0101 piltuvju ap\u0161uvumiem, cementa mal\u0161anas sist\u0113m\u0101m, og\u013cu sp\u0113kstaciju pulveriz\u0101cijas sist\u0113m\u0101m, r\u016bdas drupin\u0101\u0161anas un apstr\u0101des sist\u0113m\u0101m, k\u0101 ar\u012b citu r\u016bpniecisko iek\u0101rtu ap\u0161uvumiem. Turkl\u0101t alum\u012bnija oks\u012bda keramika samazina berzi starp deta\u013c\u0101m, t\u0101d\u0113j\u0101di padarot to piem\u0113rotu asinsv\u0101rstu, sprauslu un citu medic\u012bnisko instrumentu izgatavo\u0161anai.<\/p>\n
Alum\u012bnija oks\u012bda keramiku var ra\u017eot gan pl\u0101nu, gan lielu, neietekm\u0113jot iztur\u012bbas un svara attiec\u012bbu, vienlaikus nodro\u0161inot augstu dimensiju stabilit\u0101ti. Turkl\u0101t no \u0161\u012b materi\u0101la var veidot izstr\u0101d\u0101jumus ar da\u017e\u0101du virsmas apdari, piem\u0113ram, gludu, tekstur\u0113tu vai rievotu virsmu, atkar\u012bb\u0101 no izgatavot\u0101 izstr\u0101d\u0101juma formas \u2013 \u0161\u012bs \u012bpa\u0161\u012bbas padara alum\u012bnija oks\u012bdu ide\u0101li piem\u0113rotu t\u0101d\u0101m lietojum\u0101m k\u0101 nodiluma deta\u013cas, bl\u012bv\u0113juma gredzeni, s\u016bk\u0146u bl\u012bv\u0113jumi un elektrisko savienot\u0101ju korpusi.<\/p>\n
Graudu izsmalcin\u0101\u0161ana ir b\u016btisks faktors, kas palielina alum\u012bnija oks\u012bda keramikas nodilumiztur\u012bbu. Samazinoties graudu izm\u0113riem, to sadal\u012bjums k\u013c\u016bst nevienm\u0113r\u012bg\u0101ks, kas izraisa liel\u0101ku sprieguma koncentr\u0101ciju graudu robe\u017el\u012bnij\u0101s un palielina sprieguma koncentr\u0101ciju sprieguma koncentr\u0101cijas zon\u0101s. Graudu izsmalcin\u0101\u0161ana pal\u012bdz samazin\u0101t to berzes koeficientu \u2014 faktoru, kas visvair\u0101k ietekm\u0113 nodilumiztur\u012bbu.<\/p>\n
Alum\u012bnija oks\u012bda keramika ir paz\u012bstama ar zemu siltuma izple\u0161an\u0101s koeficientu (CTE). Lai v\u0113l vair\u0101k samazin\u0101tu \u0161o CTE v\u0113rt\u012bbu, nelielus daudzumus retzemju elementu var pievienot vai nu t\u0101s matricai, vai ar\u012b iegult k\u0101 otr\u0101s f\u0101zes stikl\u0101, kas atrodas starp t\u0101s krist\u0101liskajiem graudiem.<\/p>\n
\u0100rsti arvien bie\u017e\u0101k izmanto alum\u012bnija oks\u012bda keramiku m\u0101ksl\u012bgo kaulu un loc\u012btavu izgatavo\u0161anai, jo tai piem\u012bt biolo\u0123isk\u0101 sader\u012bba, biolo\u0123isk\u0101 inerce, fizik\u0101l\u0101 un \u0137\u012bmisk\u0101 stabilit\u0101te, k\u0101 ar\u012b augsta ciet\u012bba.<\/p>\n
Pateicoties izcilaj\u0101m elektriskaj\u0101m \u012bpa\u0161\u012bb\u0101m un dielektriskajai iztur\u012bbai 15 kV\/mm, alum\u012bnija oks\u012bdu bie\u017ei izv\u0113las k\u0101 aizdedzes sveces pamatni. Pateicoties t\u0101 izol\u0101cijas un iztur\u012bbas \u012bpa\u0161\u012bb\u0101m, alum\u012bnija oks\u012bdu var izmantot ar\u012b kontaktligzd\u0101s vai \u0137\u0113\u017eu korpusos.<\/p>\n
Alum\u012bnija oks\u012bds ir \u0101rk\u0101rt\u012bgi iztur\u012bgs materi\u0101ls, ko var pul\u0113t l\u012bdz \u0101rk\u0101rt\u012bgi gludai virsmai, t\u0101d\u0113\u013c tas ir piem\u0113rots instrumentu, sl\u012bp\u0113\u0161anas disku un abraz\u012bvo materi\u0101lu izgatavo\u0161anai, k\u0101 ar\u012b ekstr\u016bzijas matricu ra\u017eo\u0161anai, kur\u0101m tiek izvirz\u012btas augstas precizit\u0101tes pras\u012bbas. Pateicoties t\u0101 triecieniztur\u012bgaj\u0101m \u012bpa\u0161\u012bb\u0101m, tas ir ar\u012b neat\u0146emama sast\u0101vda\u013ca \u0137erme\u0146a bru\u0146u sist\u0113m\u0101s.<\/p>\n
Alum\u012bnija oks\u012bda keramika nodro\u0161ina izcilu \u0137\u012bmisko stabilit\u0101ti un iztur\u012bbu pret koroziju, t\u0101d\u0113j\u0101di padarot to par lielisku materi\u0101la izv\u0113li r\u016bpnieciskajiem pielietojumiem. T\u0101 sp\u0113j iztur\u0113t augstas temperat\u016bras, vienlaikus saglab\u0101jot meh\u0101nisko iztur\u012bbu, \u0137\u012bmisko inercit\u0101ti, zemu erozijas \u0101trumu un izcilas elektrisk\u0101s izol\u0101cijas \u012bpa\u0161\u012bbas. Turkl\u0101t biolo\u0123isk\u0101 sader\u012bba nodro\u0161ina, ka saskarei ar cilv\u0113ka vai dz\u012bvnieku audiem nerodas nek\u0101das negat\u012bvas blakuspar\u0101d\u012bbas.<\/p>\n
Ar koroziju saprot cietu materi\u0101lu mijiedarb\u012bbu ar agres\u012bvu vidi, parasti sk\u0101bju vai s\u0101rmu \u0161\u0137\u012bdumiem. Alum\u012bnija oks\u012bds ir iztur\u012bgs pret \u0137\u012bmisko iedarb\u012bbu, jo tam ir zema \u0161\u0137\u012bd\u012bba sk\u0101b\u0113s un s\u0101rmos; \u0161\u012b iztur\u012bba ir apstiprin\u0101ta, veicot masas zuduma m\u0113r\u012bjumus.<\/p>\n
Alum\u012bnija oks\u012bda keramikas iztur\u012bbu pret koroziju var uzlabot ar\u012b, izmantojot da\u017e\u0101das ra\u017eo\u0161anas metodes un pievienojot piedevas, piem\u0113ram, cirkona dioks\u012bdu (ZrO\u2082), tit\u0101na oks\u012bdu (TiO\u2082), hroma oks\u012bdu (Cr\u2082O\u2083) un sil\u012bcija dioks\u012bdu (SiO\u2082). Ja \u0161\u012bs piedevas pievieno ra\u017eo\u0161anas procesa laik\u0101, t\u0101s pal\u012bdz palielin\u0101t bl\u012bvumu un samazin\u0101t porain\u012bbu, vienlaikus stiprinot keramikas iztur\u012bbu pret \u0137\u012bmisko iedarb\u012bbu.<\/p>\n
Alum\u012bnija oks\u012bdam k\u0101 ra\u017eo\u0161anas materi\u0101lam ir daudz priek\u0161roc\u012bbu \u2014 s\u0101kot no vieglas sa\u0137epin\u0101\u0161anas un form\u0113\u0161anas da\u017e\u0101d\u0101s form\u0101s l\u012bdz iztur\u012bbai un lab\u0101m meh\u0101niskaj\u0101m un \u0137\u012bmiskaj\u0101m \u012bpa\u0161\u012bb\u0101m. T\u0101 rezult\u0101t\u0101 alum\u012bnija oks\u012bda izstr\u0101d\u0101jumi izce\u013cas ar \u013coti prec\u012bziem izm\u0113riem k\u0101 izstr\u0101d\u0101jumi, kas ir gandr\u012bz gatav\u0101 form\u0101, ar lab\u0101m meh\u0101niskaj\u0101m \u012bpa\u0161\u012bb\u0101m un \u0137\u012bmisko iztur\u012bbu.<\/p>\n
Alum\u012bnija oks\u012bda keramika parasti tiek izgatavota no izejviel\u0101m, kuras pirms saciet\u0113\u0161anas pres\u0113 vai karst\u0101s izost\u0101tisk\u0101s pres\u0113\u0161anas kr\u0101sn\u012b tiek smalki samaltas, lai pan\u0101ktu augstu bl\u012bvumu. P\u0113c izgatavo\u0161anas \u0161o alum\u012bnija oks\u012bda keramiku var p\u0101rveidot, izmantojot injekcijas lie\u0161anu, aukst\u0101s izost\u0101tisk\u0101s pres\u0113\u0161anas lie\u0161anu vai sauso pres\u0113\u0161anu, lai ieg\u016btu izstr\u0101d\u0101jumus ar sare\u017e\u0123\u012bt\u0101m form\u0101m un izm\u0113riem.<\/p>\n
Alum\u012bnija oks\u012bda izcil\u0101 nodilumiztur\u012bba un korozijas iztur\u012bba padara to par lielisku met\u0101la deta\u013cu aizvietot\u0101ju daudzos r\u016bpnieciskos pielietojumos, tostarp automobi\u013cu un komerci\u0101lo dzin\u0113ju aizdedzes svec\u0113s. Alum\u012bnija oks\u012bdam piem\u012bt ar\u012b augsta termisk\u0101 \u0161oka iztur\u012bba, kas padara to noder\u012bgu v\u0101rstos un bl\u012bv\u0113s, kas paredz\u0113tas darb\u012bbai agres\u012bv\u0101s vid\u0113s, piem\u0113ram, fluor\u016bde\u0146ra\u017esk\u0101bes vai s\u0101rmu tvaiku kl\u0101tb\u016btn\u0113 \u2013 turkl\u0101t t\u0101 izcil\u0101s meh\u0101nisk\u0101s un elektrisk\u0101s \u012bpa\u0161\u012bbas v\u0113l vair\u0101k palielina uzticam\u012bbu.<\/p>\n
Alum\u012bnija oks\u012bda substr\u0101ti ir neaizst\u0101jami elektronisko ier\u012b\u010du un komponentu ra\u017eo\u0161an\u0101, nodro\u0161inot izol\u0113jo\u0161u, ta\u010du vienlaikus siltumu vado\u0161u pamatu, kas pasarg\u0101 sh\u0113mas no boj\u0101jumiem, p\u0101rkar\u0161anas un cit\u0101m probl\u0113m\u0101m, kas samazina to kalpo\u0161anas ilgumu. Pateicoties savai elektriskajai izol\u0101cijai, alum\u012bnija oks\u012bds ir v\u0113rt\u012bgs materi\u0101ls, kas piem\u0113rots izmanto\u0161anai da\u017e\u0101d\u0101s jom\u0101s un vid\u0113s.<\/p>\n
Atkar\u012bb\u0101 no Al\u2082O\u2083 satura un ra\u017eo\u0161anas proces\u0101 izmantotaj\u0101m piedev\u0101m past\u0101v da\u017e\u0101das alum\u012bnija oks\u012bda keramikas s\u0113rijas; piem\u0113ram, 75% un 85% alum\u012bnija oks\u012bda keramikai ir at\u0161\u0137ir\u012bgas \u012bpa\u0161\u012bbas atkar\u012bb\u0101 no t\u012br\u012bbas pak\u0101pes; t\u0101m, kas izgatavotas ar augst\u0101ku t\u012br\u012bbas pak\u0101pi, piem\u012bt liel\u0101ka iztur\u012bba pret koroziju, lab\u0101ka lieces iztur\u012bba un lab\u0101kas elektrisk\u0101s izol\u0101cijas \u012bpa\u0161\u012bbas nek\u0101 t\u0101m ar zem\u0101ku t\u012br\u012bbas pak\u0101pi. Turkl\u0101t ar stiklu p\u0101rkl\u0101ti substr\u0101ti nodro\u0161ina papildu aizsardz\u012bbu un palielina kalpo\u0161anas ilgumu.<\/p>\n
Alum\u012bnija oks\u012bda keramikas augst\u0101 nodilumiztur\u012bba padara to piem\u0113rotu izmanto\u0161anai instrumentos, sl\u012bp\u0113\u0161anas rati\u0146os un abraz\u012bvos materi\u0101los. Mohsa ciet\u012bba 9 un t\u0101s nereakt\u012bv\u0101s \u012bpa\u0161\u012bbas padara alum\u012bnija oks\u012bdu par popul\u0101ru izv\u0113li met\u0101lapstr\u0101des lietojumos. Alum\u012bnija oks\u012bds var iztur\u0113t temperat\u016bras l\u012bdz pat 1800 \u00b0C, vienlaikus nodro\u0161inot labu iztur\u012bbu pret sk\u0101b\u0113m un s\u0101rmiem, k\u0101 ar\u012b sp\u0113jot darboties nelabv\u0113l\u012bgos apst\u0101k\u013cos un pie augsta darba sprieguma, laika gait\u0101 nemazinot savas \u012bpa\u0161\u012bbas.<\/p>\n
Pateicoties augstajai bl\u012bvumam un elektriskaj\u0101m izol\u0101cijas \u012bpa\u0161\u012bb\u0101m, alum\u012bnija oks\u012bda keramika ir ide\u0101ls materi\u0101ls elektrovadiem un elektrop\u0101rvades l\u012bnij\u0101m. Alum\u012bnija oks\u012bdam piem\u012bt izcila iztur\u012bba pret nodilumu, sk\u0101b\u0113m, s\u0101rmiem, \u0137\u012bmiskaj\u0101m viel\u0101m un vibr\u0101cij\u0101m, kas nov\u0113r\u0161 koroziju vai boj\u0101jumus, ko izraisa \u0161ie faktori; turkl\u0101t tam piem\u012bt izcila meh\u0101nisk\u0101 iztur\u012bba pret vibr\u0101cij\u0101m, triecieniem un slodz\u0113m, kas cit\u0101di var\u0113tu izrais\u012bt t\u0101 komponentu boj\u0101jumus.<\/p>","protected":false},"excerpt":{"rendered":"
Alumina ceramic products feature physical, mechanical and electrical properties that make them suitable for a range of industrial applications, including […]<\/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":[6],"tags":[],"class_list":["post-10","post","type-post","status-publish","format-standard","hentry","category-alumina-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/aluminaceramics.net\/lv\/wp-json\/wp\/v2\/posts\/10","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aluminaceramics.net\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aluminaceramics.net\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aluminaceramics.net\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aluminaceramics.net\/lv\/wp-json\/wp\/v2\/comments?post=10"}],"version-history":[{"count":3,"href":"https:\/\/aluminaceramics.net\/lv\/wp-json\/wp\/v2\/posts\/10\/revisions"}],"predecessor-version":[{"id":13,"href":"https:\/\/aluminaceramics.net\/lv\/wp-json\/wp\/v2\/posts\/10\/revisions\/13"}],"wp:attachment":[{"href":"https:\/\/aluminaceramics.net\/lv\/wp-json\/wp\/v2\/media?parent=10"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminaceramics.net\/lv\/wp-json\/wp\/v2\/categories?post=10"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminaceramics.net\/lv\/wp-json\/wp\/v2\/tags?post=10"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}