Karidi i silicit, i njohur m\u00eb shpesh si karborundum, \u00ebsht\u00eb i fort\u00eb si diamanti dhe shum\u00eb rezistent ndaj konsumimit. P\u00ebr m\u00eb tep\u00ebr, vetit\u00eb e tij keramike e b\u00ebjn\u00eb t\u00eb p\u00ebrshtatsh\u00ebm p\u00ebr mjedise me temperatura t\u00eb larta dhe mjedise me tension elektrik.<\/p>\n
Procesi i prodhimit t\u00eb Lely-s\u00eb jep nj\u00eb pluhur q\u00eb mund t\u00eb pritet n\u00eb gur\u00eb moissanite p\u00ebr t'u p\u00ebrdorur si gur\u00eb t\u00eb \u00e7muar, nd\u00ebrsa prodhuesit gjithashtu e p\u00ebrdorin at\u00eb n\u00eb prodhimin e artikujve g\u00ebrryes dhe produkteve q\u00eb k\u00ebrkojn\u00eb fort\u00ebsi.<\/p>\n
Karidi i silicit (SiC), i njohur gjithashtu si karborundum \/krbnm\/, \u00ebsht\u00eb nj\u00eb p\u00ebrb\u00ebr\u00ebs jasht\u00ebzakonisht i fort\u00eb i silicit dhe karbonit q\u00eb formohet natyrsh\u00ebm si minerali moissanite dhe prodhohet n\u00eb mas\u00eb si nj\u00eb abraziv q\u00eb nga fundi i shekullit t\u00eb 19-t\u00eb. Lidhja e SiC-s\u00eb p\u00ebr t\u00eb formuar qeramika t\u00eb forta ose dopimi i tij me azot, fosfor, berilium ose alumin mund t\u00eb krijoj\u00eb gjysm\u00ebp\u00ebr\u00e7ues t\u00eb tipit n ose p.<\/p>\n
SiC industrial zakonisht prodhohet p\u00ebrmes procesit Acheson, duke ngrohur r\u00ebr\u00ebn silikore me burime karboni si kok\u00eb nafte n\u00eb temperatura t\u00eb larta n\u00eb nj\u00eb furr\u00eb t\u00eb hapur, duke prodhuar grimca jeshile ose t\u00eb zeza n\u00eb var\u00ebsi t\u00eb nivelit t\u00eb past\u00ebrtis\u00eb s\u00eb tyre.<\/p>\n
SiC njihet p\u00ebr p\u00ebr\u00e7ueshm\u00ebrin\u00eb e tij t\u00eb shk\u00eblqyer termike dhe rezistenc\u00ebn ndaj korrozionit. Me koeficient t\u00eb ul\u00ebt t\u00eb zgjerimit termik, raport t\u00eb lart\u00eb forca\/fort\u00ebsi, stabilitet kimik dhe leht\u00ebsi p\u00ebr p\u00ebrpunim me makin\u00eb, ai sh\u00ebrben si nj\u00eb l\u00ebnd\u00eb e par\u00eb kryesore n\u00eb shum\u00eb aplikime industriale, si refraktare me cil\u00ebsi t\u00eb lart\u00eb, abraziv\u00eb dhe qeramika [16].<\/p>\n
Karidi i silicit (SiC) \u00ebsht\u00eb nj\u00eb material qeramik teknik me vetit\u00eb unike t\u00eb tilla si inert\u00ebsia kimike n\u00eb t\u00eb gjitha temperaturat, rezistenca ndaj goditjeve termike dhe sinterueshm\u00ebria e lart\u00eb. SiC p\u00ebrdoret n\u00eb aplikacione t\u00eb ndryshme qeramike teknike, duke p\u00ebrfshir\u00eb prodhimin e pajisjeve t\u00eb furr\u00ebs dhe t\u00eb pajisjeve p\u00ebr trajtimin e l\u00ebngjeve, si dhe rulman\u00ebt dhe pjes\u00ebt e konsumit. P\u00ebrdorime t\u00eb tjera t\u00eb SiC p\u00ebrfshijn\u00eb filtrat e grimcave t\u00eb dizelit dhe mbrojtjen balistike. Washington Mills ofron pajisje p\u00ebr th\u00ebrrmim, bluarje dhe klasifikim, t\u00eb afta p\u00ebr t\u00eb prodhuar l\u00ebnd\u00eb t\u00eb para q\u00eb plot\u00ebsojn\u00eb standardet ANSI, FEPA dhe JIS.<\/p>\n
Pluhurat SiC mund t\u00eb ndryshojn\u00eb n\u00eb madh\u00ebsin\u00eb e grimcave n\u00eb var\u00ebsi t\u00eb gjendjes s\u00eb tyre fillestare dhe burimit t\u00eb karbonit. Nj\u00eb proces i njohur p\u00ebrgatitjeje p\u00ebr sintez\u00ebn e SiC \u00ebsht\u00eb reduktimi termik me karbon; ky p\u00ebrfshin reagimin e nj\u00eb p\u00ebrzierjeje q\u00eb p\u00ebrmban nj\u00eb mole SiO2 m\u00eb pak se 200 mech me 1.5\u20133 mole burim karboni; larja me acid, ngrohja dhe reagimi i solucionit t\u00eb formuar do t\u00eb eliminojn\u00eb prodhimin e karbonit t\u00eb qelqit.<\/p>\n
Pluhuri SiC i prodhuar p\u00ebrmes analiz\u00ebs sasiore me Rreze X analizohet m\u00eb tej duke p\u00ebrdorur form\u00ebn e grimcave, p\u00ebrb\u00ebrjen granulometrike dhe analiz\u00ebn e sip\u00ebrfaqes specifike. Karakteristikat e r\u00ebnd\u00ebsishme p\u00ebrfshijn\u00eb form\u00ebn e grimcave, p\u00ebrb\u00ebrjen granulometrike dhe sip\u00ebrfaqen specifike. Grimcat SiC zakonisht shfaqin struktura t\u00eb sheshta, t\u00eb cop\u00ebtuara me n\u00ebnstruktura t\u00eb d\u00ebmtuara t\u00eb karakterizuara nga rrjetat e dislokimeve n\u00eb skajet e tyre \u2013 nj\u00eb karakteristik\u00eb e pad\u00ebshirueshme q\u00eb mund t\u00eb ndikoj\u00eb negativisht n\u00eb proceset e sinterimit.<\/p>\n
Karidi i silikonit ofron shum\u00eb karakteristika unike q\u00eb e b\u00ebjn\u00eb t\u00eb zbatuesh\u00ebm n\u00eb fusha t\u00eb ndryshme industriale. Ve\u00e7an\u00ebrisht, ai \u00ebsht\u00eb jasht\u00ebzakonisht i fort\u00eb, me shkall\u00eb fort\u00ebsie Mohs prej 9. P\u00ebr m\u00eb tep\u00ebr, ky material \u00ebsht\u00eb kimikisht inert, ofron rezistenc\u00eb t\u00eb madhe ndaj g\u00ebrvishtjes, rezistenc\u00eb ndaj nxeht\u00ebsis\u00eb deri n\u00eb temperatura t\u00eb larta, ka forc\u00eb t\u00eb mir\u00eb t\u00eb t\u00ebrheqjes dhe koeficient t\u00eb ul\u00ebt t\u00eb zgjerimit termik \u2013 cil\u00ebsi q\u00eb e b\u00ebjn\u00eb karidin e silikonit t\u00eb p\u00ebrshtatsh\u00ebm p\u00ebr shum\u00eb p\u00ebrdorime industriale.<\/p>\n
Proceset e prodhimit t\u00eb karbidi i silicit kan\u00eb nj\u00eb ndikim t\u00eb jasht\u00ebzakonsh\u00ebm n\u00eb vetit\u00eb dhe p\u00ebrdorimet e tij. Edward Goodrich Acheson zhvilloi procesin Acheson, i cili p\u00ebrfshin ngrohjen e nj\u00eb p\u00ebrzierjeje r\u00ebr\u00eb kuarci, kok\u00eb nafte dhe copa druri n\u00eb temperatura jasht\u00ebzakonisht t\u00eb larta p\u00ebr t\u00eb shkaktuar reaksione kimike q\u00eb prodhojn\u00eb kristale karbidi i silicit \u2013 k\u00ebto kristale m\u00eb pas mund t\u00eb th\u00ebrrmohen n\u00eb pluhur ose t\u00eb derdhen n\u00eb ingot\u00eb p\u00ebr shitje.<\/p>\n
Ky pluhur abraziv p\u00ebrdoret zakonisht nga industrit\u00eb e aviacionit dhe automobilizmit p\u00ebr f\u00ebrkim dhe l\u00ebmuarjen e pjes\u00ebve p\u00ebr t\u00eb arritur p\u00ebrmasa t\u00eb sakta dhe p\u00ebrfundime t\u00eb l\u00ebmuara, nd\u00ebrsa gjen gjithashtu p\u00ebrdorim n\u00eb qeramik\u00eb, prodhimin e qelqit dhe prodhimin e \u00e7elikut dhe metaleve t\u00eb tjera. Alter Technology krijoi nj\u00eb qark radioje duke p\u00ebrdorur k\u00ebt\u00eb material q\u00eb mund t\u00eb p\u00ebrballoj\u00eb kushtet ekstreme t\u00eb hap\u00ebsir\u00ebs.<\/p>\n
Keramika e karbhidit t\u00eb silikonit \u00ebsht\u00eb nj\u00eb material jo-oksid i jasht\u00ebzakonsh\u00ebm me aplikime t\u00eb ndryshme p\u00ebr shkak t\u00eb fort\u00ebsis\u00eb s\u00eb tij (fort\u00ebsi Mohs > 9), inert\u00ebsis\u00eb kimike, koeficientit t\u00eb ul\u00ebt t\u00eb zgjerimit termik dhe rezistenc\u00ebs ndaj nxeht\u00ebsis\u00eb dhe goditjeve. Karbidi i silikonit p\u00ebrdoret si pjes\u00eb rezistente ndaj konsumit n\u00eb materiale abrazive ose si pjes\u00eb rezistente ndaj konsumit n\u00eb keramika refraktare, si dhe n\u00eb aplikime gjysm\u00ebp\u00ebr\u00e7ues dhe elektrike p\u00ebr shkak t\u00eb vetive t\u00eb tij t\u00eb konduktivitetit termik.<\/p>\n
P\u00ebr t\u00eb prodhuar SiC, prodhuesit s\u00eb pari kombinojn\u00eb silik\u00eb amorfe me karbon n\u00eb temperatura t\u00eb larta \u2013 zakonisht kok\u00eb qymyri si burim karboni \u2013 para se ta bluajn\u00eb im\u00ebt dhe ta p\u00ebrziejn\u00eb me sasi t\u00eb vogla boksiti p\u00ebr t\u00eb formuar nj\u00eb preform\u00eb. M\u00eb pas kryhet dopimi me azot (SiC i tipit n) ose dopimi me bor, alumin dhe gallium (SiC i tipit p), n\u00eb var\u00ebsi t\u00eb aplikimit t\u00eb d\u00ebshiruar.<\/p>\n
Pastaj prodhuesit p\u00ebrdorin k\u00ebt\u00eb parap\u00ebrform\u00eb p\u00ebr t\u00eb prodhuar karbid silikoni kubik, qoft\u00eb p\u00ebrmes lidhjes me reaksion, qoft\u00eb p\u00ebrmes depozitimit kimik me avull. Lidhja me reaksion \u00ebsht\u00eb qasja m\u00eb e p\u00ebrdorur; kjo p\u00ebrfshin ngrohjen e saj n\u00eb 1410 \u00b0C dhe dopimin me azot ose bor p\u00ebr prodhimin e SiC-s\u00eb s\u00eb tipit n. Depozitimi kimik me avull k\u00ebrkon shum\u00eb m\u00eb tep\u00ebr energji dhe pajisje p\u00ebr procesin e tij; lidhja me reaksion k\u00ebrkon shum\u00eb m\u00eb pak.<\/p>\n
Pluhur SiC me cil\u00ebsi semikonduktori dhe p\u00ebr\u00e7ues \u00ebsht\u00eb projektuar p\u00ebr t\u00eb p\u00ebrmbushur nevojat unike t\u00eb rritjes s\u00eb metodave t\u00eb ndryshme p\u00ebr rritjen e kristaleve t\u00eb vetme t\u00eb karbhidit t\u00eb silikonit t\u00eb tipit n t\u00eb gjenerat\u00ebs s\u00eb tret\u00eb. Ky lloj pluhuri ka nj\u00eb shp\u00ebrndarje optimale t\u00eb madh\u00ebsis\u00eb s\u00eb grimcave me pak boshll\u00ebqe, duke ofruar nivele past\u00ebrtie t\u00eb produktit q\u00eb tejkalojn\u00eb 6N.<\/p>","protected":false},"excerpt":{"rendered":"
Si t\u00eb prodhoni pluhura karbidi silikoni Karbidi silikoni, m\u00eb shpesh i njohur si karborundum, \u00ebsht\u00eb i fort\u00eb si diamanti dhe shum\u00eb rezistent ndaj konsumit. P\u00ebr m\u00eb tep\u00ebr, vetit\u00eb e tij qeramike e b\u00ebjn\u00eb t\u00eb p\u00ebrshtatsh\u00ebm p\u00ebr mjedise me temperatura t\u00eb larta dhe mjedise me tension elektrik. Prodhimi me procesin Lely rezulton n\u00eb nj\u00eb form\u00eb pluhuri q\u00eb mund t\u00eb pritet n\u00eb gur\u00eb moissanite p\u00ebr t'u p\u00ebrdorur si gur\u00eb t\u00eb \u00e7muar, nd\u00ebrsa \u2026 Lexo m\u00eb shum\u00eb<\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-19","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbidepowders.com\/sq\/wp-json\/wp\/v2\/posts\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbidepowders.com\/sq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbidepowders.com\/sq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/sq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/sq\/wp-json\/wp\/v2\/comments?post=19"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbidepowders.com\/sq\/wp-json\/wp\/v2\/posts\/19\/revisions"}],"predecessor-version":[{"id":20,"href":"https:\/\/siliconcarbidepowders.com\/sq\/wp-json\/wp\/v2\/posts\/19\/revisions\/20"}],"wp:attachment":[{"href":"https:\/\/siliconcarbidepowders.com\/sq\/wp-json\/wp\/v2\/media?parent=19"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/sq\/wp-json\/wp\/v2\/categories?post=19"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbidepowders.com\/sq\/wp-json\/wp\/v2\/tags?post=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}