Iyini i-SiC coating?

 

Iyini i-Silicon Carbide SiC Coating?

I-Silicon Carbide (SiC) inamathela ubuchwepheshe obushintshashintshayo obunikeza ukuvikeleka okukhethekile nokusebenza ezindaweni ezishisa kakhulu nezisebenzayo amakhemikhali. Lokhu kunamathela okuthuthukisiwe kusetshenziswa ezintweni ezihlukahlukene, okuhlanganisa i-graphite, izitsha zobumba, nezinsimbi, ukuze kuthuthukiswe izakhiwo zazo, kunikeze isivikelo esingcono kakhulu sokugqwala, i-oxidation, nokuguga. Izakhiwo eziyingqayizivele ze-SiC coatings, okuhlanganisa ukuhlanzeka kwazo okuphezulu, ukuhamba kahle kwe-thermal, kanye nobuqotho besakhiwo, kubenza bafaneleke ukusetshenziswa ezimbonini ezifana nokukhiqiza i-semiconductor, i-aerospace, kanye nobuchwepheshe bokushisa obusebenza kahle kakhulu.

 

Izinzuzo ze-silicon carbide coating

I-SiC coating inikezela ngezinzuzo ezimbalwa ezibalulekile eziyibeka ngaphandle kwezingubo zokuvikela zendabuko:

  • -High Density & Corrosion Resistance
  • Isakhiwo se-cubic SiC siqinisekisa ukunamathelana okuphezulu, sithuthukisa kakhulu ukumelana nokugqwala futhi sandise isikhathi sokuphila sengxenye.
  • -Ukufakwa Okuyingqayizivele Kwezimo Eziyinkimbinkimbi
  • I-SiC coating idume ngokumboza kwayo okuhle kakhulu, ngisho nasezimbotsheni ezincane eziyimpumputhe ezinokufika ku-5 mm, inikela ukujiya komfaniswano kuze kufike ku-30% endaweni ejulile.
  • -Customizable Surface Roughness
  • Inqubo yokumboza iyaguquguquka, ivumela ukuguquguquka kwendawo ukuze ivumelane nezidingo ezithile zohlelo lokusebenza.
  • -High Purity Coating
  • Kuzuzwe ngokusetshenziswa kwamagesi anobumsulwa obuphezulu, ukunamathela kwe-SiC kuhlala kumsulwa kakhulu, namazinga okungcola ngokuvamile angaphansi kuka-5 ppm. Lokhu kuhlanzeka kubalulekile ezimbonini zobuchwepheshe obuphezulu ezidinga ukunemba nokungcoliswa okuncane.
  • -Thermal Ukuzinza
  • I-silicon carbide ceramic coating ingamelana namazinga okushisa aphezulu, ngezinga lokushisa eliphakeme lokusebenza elifinyelela ku-1600 ° C, liqinisekisa ukwethembeka ezindaweni ezishisa kakhulu.

 

Izicelo ze-SiC Coating

Izembatho ze-SiC zisetshenziswa kabanzi kuzo zonke izimboni ezahlukahlukene ngokusebenza kwazo okungenakuqhathaniswa ezindaweni eziyinselele. Izinhlelo zokusebenza ezibalulekile zifaka:

  • -LED & Solar Industry
  • I-coating iphinde isetshenziselwe izingxenye zokukhiqiza i-LED kanye ne-solar cell, lapho ukuhlanzeka okuphezulu nokumelana nokushisa kubalulekile.
  • -High-Temperature Heating Technologies
  • I-graphite eboshwe nge-SiC nezinye izinto zisetshenziswa ekushisiseni izakhi zezithando zomlilo nama-reactors asetshenziswa ezinqubweni ezihlukahlukene zezimboni.
  • -Semiconductor Crystal Ukukhula
  • Ekukhuleni kwekristalu ye-semiconductor, izembatho ze-SiC zisetshenziselwa ukuvikela izingxenye ezihilelekile ekukhuleni kwe-silicon namanye amakristalu e-semiconductor, enikeza ukumelana nokugqwala okuphezulu nokuzinza kokushisa.
  • -Silicon futhi SiC Epitaxy
  • Izembatho ze-SiC zisetshenziswa ezingxenyeni zenqubo yokukhula kwe-epitaxial ye-silicon ne-silicon carbide (SiC). Lezi zimbotshana zivimbela ukugcotshwa kwe-oxidation, ukungcoliswa, futhi ziqinisekise ikhwalithi yezendlalelo ze-epitaxial, okubalulekile ekukhiqizweni kwamadivayisi asebenza kahle kakhulu e-semiconductor.
  • -Izinqubo ze-Oxidation kanye Nokusabalalisa
  • Izingxenye ze-SiC-coated zisetshenziselwa izinqubo ze-oxidation kanye nokusabalalisa, lapho zinikeza khona umgoqo ophumelelayo ngokumelene nokungcola okungafuneki futhi zithuthukise ubuqotho bomkhiqizo wokugcina. Ama-coatings athuthukisa ukuphila isikhathi eside nokuthembeka kwezingxenye ezivezwe ku-oxidation yezinga lokushisa eliphezulu noma izinyathelo zokusabalalisa.

 

Izici ezibalulekile ze-SiC Coating

I-SiC coatings inikeza uhla lwezakhiwo ezithuthukisa ukusebenza nokuqina kwezingxenye ezimbozwe nge-sic:

  • -I-Crystal Isakhiwo
  • I-coating ngokuvamile ikhiqizwa nge-aβ 3C (cubic) ikristaluisakhiwo, okuyi-isotropic futhi sinikeza ukuvikelwa kokugqwala okuphelele.
  • -Ukuminyana kanye ne-Porosity
  • I-SiC coatings inokuminyana kwe3200 kg/m³kanye nombukiso0% i-porosity, iqinisekisa ukusebenza okuqinile kokuvuza kwe-helium kanye nokumelana nokugqwala okusebenzayo.
  • -Izakhiwo ezishisayo nezikagesi
  • I-SiC coating ine-conductivity ephezulu yokushisa(200 W/m·K)kanye nokumelana okuhle kakhulu kagesi(1MΩ·m), okwenza kube kuhle ezinhlelweni ezidinga ukuphathwa kokushisa nokufakwa kukagesi.
  • -Amandla Mechanical
  • Nge-elastic modulus ye450 GPA, Izingubo ze-SiC zinikeza amandla aphakeme wemishini, okuthuthukisa ubuqotho besakhiwo sezingxenye.

 

I-SiC silicon carbide coating Process

I-SiC coating isetshenziswa nge-Chemical Vapor Deposition (CVD), inqubo ehilela ukubola okushisayo kwamagesi ukuze kufakwe izingqimba ezincane ze-SiC ku-substrate. Le ndlela yokubeka ivumela amazinga okukhula aphezulu kanye nokulawula okunembile phezu kogqinsi lwesendlalelo, okungasukela kulo10µm kuya ku-500µm, kuye ngohlelo lokusebenza. Inqubo yokumboza iphinde iqinisekise ukumbozwa okufanayo, ngisho nakumajiyometri ayinkimbinkimbi njengezimbobo ezincane noma ezijulile, ngokuvamile eziyinselele ezindleleni zokumboza zendabuko.

 

Izinto Ezifanele I-SiC Coating

I-SiC coating ingasetshenziswa ezinhlobonhlobo zezinto zokwakha, kufaka phakathi:

  • -Graphite kanye Carbon Composites
  • I-Graphite iyindawo engaphansi ethandwayo yokuhlanganisa i-SiC ngenxa yezakhiwo zayo ezinhle kakhulu ezishisayo nezikagesi. I-SiC coating ingena embotsheni ye-graphite, idale isibopho esithuthukisiwe futhi inikeze ukuvikeleka okuphezulu.
  • - Ceramics
  • Izitsha zobumba ezisekelwe ku-silicon ezifana ne-SiC, i-SiSiC, ne-RSiC ziyazuza embotsheni ye-SiC, okuthuthukisa ukumelana nokugqwala kwazo futhi kuvimbele ukusabalala kokungcola.

 

Kungani Khetha I-SiC Coating?

Izingubo ezingaphezulu zinikeza isixazululo esiguquguqukayo nesingabizi kakhulu ezimbonini ezifuna ukuhlanzeka okuphezulu, ukumelana nokugqwala, nokuzinza kwe-thermal. Kungakhathaliseki ukuthi usebenza kumkhakha wokushisa omncane, we-aerospace, noma osebenza kahle kakhulu, ama-SiC coating aletha ukuvikeleka nokusebenza okudingayo ukuze ugcine ukusebenza kahle. Inhlanganisela yesakhiwo se-cubic esixinene kakhulu, izakhiwo zangaphezulu ezingenziwa ngendlela oyifisayo, kanye nekhono lokumboza amajiyometri ayinkimbinkimbi kuqinisekisa ukuthi ama-sic coated angakwazi ukumelana nezindawo eziyinselele kakhulu.

Ukuze uthole ulwazi olwengeziwe noma ukuxoxa ngokuthi i-silicon carbide ceramic coating ingaluzuzisa kanjani uhlelo lwakho lokusebenza oluthile, sicelaXhumana nathi.

 

I-SiC Coating_Semicera 2


Isikhathi sokuthumela: Aug-12-2024