Carbura de siliciu (SiC) este un compus chimic anorganic alc\u0103tuit din siliciu \u0219i carbon, care a fost produs comercial \u00een mas\u0103 pentru prima dat\u0103 \u00een 1893 pentru a fi utilizat ca material abraziv. De\u0219i SiC exist\u0103 \u00een stare natural\u0103 sub forma mineralului moissanite, produc\u021bia de mas\u0103 a \u00eenceput dup\u0103 aceast\u0103 dat\u0103 pentru a fi utilizat sub form\u0103 de pulbere \u0219i cristale pentru consumul de mas\u0103 \u00een produse abrazive.<\/p>\n
Materialul ceramic Cerakote este una dintre cele mai dure \u0219i mai u\u0219oare op\u021biuni ceramice, oferind o rezisten\u021b\u0103 superioar\u0103 la coroziune, abraziune \u0219i eroziune, precum \u0219i rezisten\u021b\u0103 la temperaturi extreme.<\/p>\n
Carbura de siliciu (SiC) este un material extrem de dur \u0219i elastic, cu o rezisten\u021b\u0103 deosebit\u0103 la coroziune \u0219i propriet\u0103\u021bi de dilatare termic\u0103, fiind rezistent la acizi \u0219i le\u0219ie \u0219i servind \u00een acela\u0219i timp ca izolator electric.<\/p>\n
SiC este abundent pe P\u0103m\u00e2nt sub forma mineralului moissanite, iar \u00een spa\u021biu sub forma prafului de stele bogat \u00een carbon. SiC \u00ee\u0219i g\u0103se\u0219te aplica\u021bii pe scar\u0103 larg\u0103 \u00een industrii precum produc\u021bia chimic\u0103, fabricarea h\u00e2rtiei \u0219i componente pentru pompe \u0219i sisteme de ac\u021bionare. \u00cen plus, tehnologiile de etan\u0219are dinamic\u0103 care utilizeaz\u0103 rulmen\u021bi de fric\u021biune sau etan\u0219\u0103ri mecanice \u00eel prefer\u0103 adesea \u00een locul omologilor metalici pentru fiabilitatea lor superioar\u0103 \u00een condi\u021bii solicitante.<\/p>\n
Carbura de siliciu alfa (a-SiC) cu structura sa cristalin\u0103 hexagonal\u0103 similar\u0103 cu Wurtzite este tipul cel mai utilizat. De\u0219i este disponibil beta a-SiC cu structur\u0103 cristalin\u0103 zinc blende, aplicarea sa comercial\u0103 r\u0103m\u00e2ne limitat\u0103.<\/p>\n
Versatilitatea carburii de siliciu ca material provine \u00een primul r\u00e2nd din propriet\u0103\u021bile sale termice remarcabile, inclusiv conductivitatea termic\u0103 ridicat\u0103, dilatarea termic\u0103 redus\u0103 \u0219i un punct de topire ridicat, care o fac potrivit\u0103 pentru aplica\u021bii aerospa\u021biale, tehnologia energetic\u0103 \u0219i produc\u021bia chimic\u0103.<\/p>\n
Rezisten\u021ba excelent\u0103 la coroziune diferen\u021biaz\u0103 acest material, inclusiv rezisten\u021ba la substan\u021be chimice acide \u0219i alcaline, precum \u0219i la temperaturi de p\u00e2n\u0103 la 1600degC. Prin urmare, este o alegere ideal\u0103 pentru rulmen\u021bi, duze, componente ale motoarelor cu combustie \u0219i piese ale vehiculelor electrice care trebuie s\u0103 reziste la \u0219ocuri termice severe f\u0103r\u0103 a se fisura sau dezintegra.<\/p>\n
American Elements ofer\u0103 o gam\u0103 larg\u0103 de materiale standard \u0219i personalizate pentru industria semiconductorilor, industria aerospa\u021bial\u0103, industria auto, industria electronic\u0103 de ap\u0103rare, industria o\u021belului \u0219i a h\u00e2rtiei de iluminat. Sunt disponibile e\u0219antioane \u00een scopuri de cercetare \u0219i control al calit\u0103\u021bii, \u00een timp ce se ofer\u0103, de asemenea, dimensiuni macro \u0219i micro ale granulelor. a-SiC de la American Elements este chimic pur, cu o densitate mare \u00een vrac, \u00een timp ce procesul nostru de cur\u0103\u021bare chimic\u0103 l-a cernut pentru a \u00eendeplini dimensiunile FEPA specifice, precum \u0219i standardele ACS Reagent Grade.<\/p>\n
Carbura de siliciu se m\u00e2ndre\u0219te cu o prelucrabilitate \u0219i o conductivitate electric\u0103 remarcabile \u00een ciuda densit\u0103\u021bii sale relativ sc\u0103zute (3,2 g\/cm3), precum \u0219i cu rezisten\u021ba la majoritatea acizilor, s\u0103rurilor \u0219i alcalinilor.<\/p>\n
Ca semiconductor cu band\u0103 larg\u0103, GaN prezint\u0103 o conductivitate termic\u0103 \u0219i o rezisten\u021b\u0103 ridicat\u0103 la ruperea c\u00e2mpului electric, precum \u0219i un izolator excelent.<\/p>\n
Politipurile de SiC variaz\u0103 semnificativ \u00een ceea ce prive\u0219te propriet\u0103\u021bile lor electrice fundamentale datorit\u0103 aranjamentelor atomice din re\u021belele lor cristaline, fiecare oferind avantaje \u0219i dezavantaje specifice \u00een compara\u021bie cu siliciul \u00een trei categorii cheie - conductivitate termic\u0103, rezisten\u021ba la ruperea c\u00e2mpului electric \u0219i intervalul de energie.<\/p>\n
SiC este disponibil \u00een mai multe forme. Formele alfa prezint\u0103 structuri cristaline hexagonale similare cu Wurtzite, \u00een timp ce formele beta au structuri cristaline de zinc blende \u0219i pot servi, de asemenea, ca suporturi pentru catalizatori. SiC off-stoichiometric con\u021bin\u00e2nd adaosuri de C \u0219i Si de la 1-5mol% a fost creat prin sinterizare cu plasm\u0103 cu sc\u00e2ntei, prezent\u00e2nd o microstructur\u0103 consistent\u0103 cu rezistivitate electric\u0103 sc\u0103zut\u0103; coeficientul s\u0103u Seebeck a trecut de la tipul n la tipul p odat\u0103 cu cre\u0219terea cantit\u0103\u021bii de C, suger\u00e2nd c\u0103 s-au format solu\u021bii solide \u00eentre C \u0219i Si \u00een cadrul structurii sale de re\u021bea.<\/p>\n
Carbura de siliciu prezint\u0103 duritate, ductilitate \u0219i rezisten\u021b\u0103 la coroziune \u0219i atac chimic superioare fa\u021b\u0103 de majoritatea ceramicii tehnice. Fiind una dintre cele mai dure ceramici tehnice disponibile, poate rezista la temperaturi ridicate \u0219i la solicit\u0103ri mecanice, precum \u0219i s\u0103 ofere o bun\u0103 stabilitate dimensional\u0103 datorit\u0103 valorii sale ridicate a modulului Young.<\/p>\n
Aluminiul este unul dintre cele mai stabile materiale \u00eempotriva \u0219ocurilor \u0219i vibra\u021biilor, ceea ce \u00eel face un material potrivit pentru aplica\u021bii de \u00eenalt\u0103 performan\u021b\u0103, cum ar fi abrazivele \u0219i alte aplica\u021bii de \u00eenalt\u0103 tehnologie. \u00cen plus, conductivitatea sa termic\u0103, coeficientul sc\u0103zut de dilatare \u0219i rezisten\u021ba la acizi \u0219i le\u0219ie \u00eel fac o alegere excelent\u0103.<\/p>\n
American Elements ofer\u0103 o selec\u021bie de produse din pulbere de carbur\u0103 de siliciu de \u00eenalt\u0103 puritate, realizate \u00een conformitate cu standarde stricte specifice industriei \u0219i aplica\u021biilor, pentru utilizare \u00een numeroase industrii \u0219i aplica\u021bii, cum ar fi Mil Spec (grad militar), ACS Reagent Grade Technical Grade Food Pharmaceutical Grade \u0219i USP \/ BP solu\u021bii de ambalare sunt, de asemenea, disponibile - v\u0103 rug\u0103m s\u0103 contacta\u021bi echipa noastr\u0103 pentru mai multe detalii; toate gradele \u00eendeplinesc standardele de testare ASTM aplicabile cu ambalaje personalizate disponibile dup\u0103 cum este necesar - ambalaje tipice \u0219i personalizate disponibile la cerere - v\u0103 rug\u0103m s\u0103 contacta\u021bi acum, deoarece American Elements se str\u0103duie\u0219te s\u0103 ofere clien\u021bilor produse de calitate, oferind \u00een acela\u0219i timp un serviciu clien\u021bi de neegalat!<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide (SiC) is an inorganic chemical compound made of silica and carbon that was first mass produced commercially since […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","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":[3],"tags":[],"class_list":["post-76","post","type-post","status-publish","format-standard","hentry","category-sic-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/posts\/76","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/comments?post=76"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/posts\/76\/revisions"}],"predecessor-version":[{"id":77,"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/posts\/76\/revisions\/77"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/media?parent=76"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/categories?post=76"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/tags?post=76"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}