Ceramica din carbur\u0103 de siliciu este unul dintre cele mai dure \u0219i mai rezistente materiale tehnice existente, fiind utilizat\u0103 pe scar\u0103 larg\u0103 \u00een industria auto, mecanic\u0103 \u0219i chimic\u0103.<\/p>\n
Saint-Gobain Performance Ceramics & Refractories ofer\u0103 o gam\u0103 larg\u0103 de carburi de siliciu sinterizate, legate prin reac\u021bie, cu matrice metalic\u0103 \u0219i legate cu mulit, cu propriet\u0103\u021bi chimice \u0219i mecanice excep\u021bionale la temperaturi de p\u00e2n\u0103 la 1600degC pentru aplica\u021bii finale. Aceste produse complet densificate prezint\u0103 performan\u021be chimice \u0219i mecanice remarcabile la temperaturi de utilizare final\u0103 de p\u00e2n\u0103 la 150 \u00b0C.<\/p>\n
Ceramica din carbur\u0103 de siliciu este unul dintre cele mai u\u0219oare, mai dure \u0219i mai rezistente materiale tehnice avansate. Este sigur\u0103 din punct de vedere toxicologic, rezistent\u0103 la abraziune \u0219i prezint\u0103 propriet\u0103\u021bi mecanice excelente \u00een compara\u021bie cu metalele, precum modulul lui Young ridicat \u0219i coeficientul redus de dilatare termic\u0103.<\/p>\n
SiC este un material ideal pentru a r\u0103spunde cerin\u021belor riguroase ale diverselor industrii, oferind duritatea \u0219i modulul de elasticitate necesare \u00een domeniul balisticii blindajelor, la o greutate mult mai mic\u0103 dec\u00e2t cea a altor materiale. SiC-ul de culoare negru-gri combin\u0103 ambele propriet\u0103\u021bi, reu\u0219ind astfel s\u0103 fac\u0103 fa\u021b\u0103 acestei provoc\u0103ri.<\/p>\n
SSiC este un material excelent pentru componente rezistente la coroziune \u0219i abraziune, precum pompe \u0219i garnituri mecanice, duze de sablare \u0219i cicloane. \u00cen plus, acest material rigid, cu un coeficient de dilatare redus, s-a dovedit util ca oglinzi optice \u00een telescoape, datorit\u0103 propriet\u0103\u021bilor sale de rezisten\u021b\u0103 chimic\u0103, la uzur\u0103 \u0219i la oxidare, precum \u0219i rezisten\u021bei la temperaturi ridicate.<\/p>\n
Carbur\u0103 de siliciu este unul dintre cele mai u\u0219oare \u0219i mai dure materiale ceramice. Este rezistent\u0103 la coroziune, precum \u0219i la acizi \u0219i alcali. \u00cen plus, ofer\u0103 o conductivitate termic\u0103 excelent\u0103, cu o dilatare termic\u0103 redus\u0103, ceea ce \u00eel face potrivit at\u00e2t pentru temperaturi ridicate, c\u00e2t \u0219i pentru medii ostile. Datorit\u0103 propriet\u0103\u021bilor sale de rezisten\u021b\u0103, este o alegere excelent\u0103 ca material pentru duze, rulmen\u021bi, pl\u0103ci antiglon\u021b \u0219i aplica\u021bii similare.<\/p>\n
Rezisten\u021ba la coroziune a SiC-ului provine din stratul sub\u021bire de protec\u021bie care se formeaz\u0103 pe suprafa\u021ba sa, cre\u00e2nd o barier\u0103 de oxid care \u00eempiedic\u0103 interac\u021biunea direct\u0103 a substratului cu speciile corozive, ceea ce duce la o cinetic\u0103 parabolic\u0103 a coroziunii. Re\u00eennoirea acestei bariere de oxid depinde de factori precum speciile chimice prezente \u00een mediul coroziv, precum \u0219i de impurit\u0103\u021bi, aditivi de sinterizare \u0219i fazele de la limitele de granula\u021bie prezente \u00een materialul substratului.<\/p>\n
Ceramica spumoas\u0103 se caracterizeaz\u0103 prin distribu\u021bia uniform\u0103 a porilor, porozitate ridicat\u0103 \u0219i suprafa\u021b\u0103 specific\u0103 mare, permeabilitate selectiv\u0103 la medii lichide \u0219i gazoase, precum \u0219i propriet\u0103\u021bi chimice, electrice, magnetice \u0219i optice excelente \u2013 caracteristici care o fac alegerea ideal\u0103 ca material pentru produse care func\u021bioneaz\u0103 la temperaturi ridicate, sub presiune ridicat\u0103 sau \u00een medii extreme.<\/p>\n
Ceramica din carbur\u0103 de siliciu spumat\u0103 prezint\u0103 o rezisten\u021b\u0103 excelent\u0103 la oxidare, ceea ce o face potrivit\u0103 pentru utilizarea \u00een sectorul construc\u021biilor \u0219i \u00een domeniul semiconductorilor, \u00een vederea realiz\u0103rii unor schimb\u0103toare de c\u0103ldur\u0103 de toate tipurile. Structura sa special\u0103, de tip re\u021bea spa\u021bial\u0103, \u00eembun\u0103t\u0103\u021be\u0219te conductivitatea termic\u0103, asigur\u00e2nd un transfer de c\u0103ldur\u0103 mai eficient.<\/p>\n
Combina\u021bia dintre propriet\u0103\u021bile mecanice \u0219i rezisten\u021ba chimic\u0103 a carburii de siliciu o transform\u0103 \u00eentr-un material tehnic foarte c\u0103utat. Acesta rezist\u0103 la coroziune, abraziune \u0219i eroziune, iar modulul s\u0103u ridicat de elasticitate asigur\u0103 stabilitatea dimensional\u0103. Carbur\u0103 de siliciu exceleaz\u0103, de asemenea, ca material de etan\u0219are \u00een pompe, garnituri mecanice \u0219i rulmen\u021bi, fiind dep\u0103\u0219it\u0103 doar de diamant \u0219i de nitrur\u0103 de bor cubic \u00een ceea ce prive\u0219te performan\u021bele tribologice.<\/p>\n
Ceramica din carbur\u0103 de siliciu este un material dur \u0219i rezistent la temperaturi ridicate, ceea ce o face alegerea ideal\u0103 pentru aplica\u021bii industriale. Rezisten\u021ba sa r\u0103m\u00e2ne constant\u0103 la temperaturi extrem de ridicate, deoarece poate face fa\u021b\u0103 mediilor ostile datorit\u0103 coeficien\u021bilor de frecare redusi, rezisten\u021bei la coroziunea acid\u0103 \u0219i alcalin\u0103, precum \u0219i rezisten\u021bei chimice excelente.<\/p>\n
Propriet\u0103\u021bile de uzur\u0103 ale ceramicii din carbur\u0103 de siliciu sunt determinate de mai mul\u021bi factori, printre care rugozitatea ini\u021bial\u0103 a suprafe\u021bei \u0219i caracteristicile chimice \u0219i mecanice ale materialului din care este alc\u0103tuit\u0103. Rugozitatea ini\u021bial\u0103 a suprafe\u021bei influen\u021beaz\u0103 formarea straturilor structurale transformate tribologic, care reduc energia necesar\u0103 pentru declan\u0219area uzurii, diminu\u00e2nd totodat\u0103 produc\u021bia de reziduuri de uzur\u0103.<\/p>\n
Ceramica spumoas\u0103 are o structur\u0103 tridimensional\u0103 de re\u021bea uniform\u0103 prin natura sa \u0219i se distinge prin suprafa\u021ba specific\u0103 mare, permeabilitatea selectiv\u0103 la medii lichide \u0219i gazoase, propriet\u0103\u021bi termice, electrice, magnetice \u0219i optice excelente, precum \u0219i prin propriet\u0103\u021bile de reglare termic\u0103. Ca atare, aceasta g\u0103se\u0219te aplica\u021bii pe scar\u0103 larg\u0103 \u00een domenii at\u00e2t de variate precum metalurgia, ingineria mecanic\u0103, utilajele de transport, ap\u0103rarea na\u021bional\u0103 \u0219i protec\u021bia mediului.<\/p>\n
Ceramica avansat\u0103 se caracterizeaz\u0103 printr-o compozi\u021bie atomic\u0103 unic\u0103, care \u00eei permite s\u0103 r\u0103m\u00e2n\u0103 stabil\u0103 la temperaturi ridicate, \u00een timp ce alte materiale, precum o\u021belul inoxidabil, se dilat\u0103 odat\u0103 cu cre\u0219terea temperaturii. Carbur\u0103 de siliciu are un coeficient de dilatare termic\u0103 mai mic de jum\u0103tate din cel al o\u021belului inoxidabil.<\/p>\n
Prin urmare, este un material ideal pentru inele de etan\u0219are a gazelor, garnituri mecanice \u0219i componente ale rulmen\u021bilor utilizate \u00een aplica\u021bii petrochimice \u0219i aerospa\u021biale, oferind rezisten\u021b\u0103 la coroziune, oxidare, uzur\u0103 chimic\u0103 \u0219i \u0219oc termic.<\/p>\n
Carbur\u0103 de siliciu sinterizat\u0103 (SSiC) se caracterizeaz\u0103 prin duritate extrem\u0103 \u0219i un modul de elasticitate ridicat, calit\u0103\u021bi care \u00eei permit s\u0103 absoarb\u0103 \u00een mod fiabil energia de impact, oferind protec\u021bie balistic\u0103 cu o reducere considerabil\u0103 a greut\u0103\u021bii \u00een compara\u021bie cu componentele metalice.<\/p>","protected":false},"excerpt":{"rendered":"
Silicon carbide ceramic is one of the hardest and strongest engineering materials available, finding widespread application across automotive, mechanical and […]<\/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":"","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":[5],"tags":[],"class_list":["post-78","post","type-post","status-publish","format-standard","hentry","category-product-related"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/posts\/78","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=78"}],"version-history":[{"count":1,"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/posts\/78\/revisions"}],"predecessor-version":[{"id":79,"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/posts\/78\/revisions\/79"}],"wp:attachment":[{"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/media?parent=78"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/categories?post=78"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/siliconcarbideceramic.net\/ro\/wp-json\/wp\/v2\/tags?post=78"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}