Kayan zamani na zamani na C, N, B da sauran kayan aiki masu ƙarfi waɗanda ba su da sinadarin oxide, sintered silicon carbide mai matsin lamba yana da faɗi, mai tattalin arziki, ana iya cewa yashi ne mai ƙarfi ko mai ƙarfi. Tsarkakken silicon carbide lu'ulu'u ne mai haske mara launi. To menene tsarin kayan da halayen silicon carbide?
Sinted silicon carbide a ƙarƙashin matsin lamba na yanayi
Tsarin kayan da aka yi da simintin silicon carbide mai matsin lamba a yanayi:
Carbide mai sintered silicon carbide da ake amfani da shi a masana'antu yana da launin rawaya mai haske, kore, shuɗi da baƙi gwargwadon nau'in da abubuwan da ke cikin ƙazanta, kuma tsarkin ya bambanta kuma bayyanannen abu ya bambanta. Tsarin kristal ɗin silicon carbide an raba shi zuwa nau'ikan plutonium mai siffar lu'u-lu'u shida ko kuma siffar lu'u-lu'u da kuma cubic plutonium-sic. Plutonium-sic yana samar da nau'ikan nakasa saboda tsarin tarin ƙwayoyin carbon da silicon daban-daban a cikin tsarin kristal, kuma an sami nau'ikan nakasa sama da 70. beta-SIC yana canzawa zuwa alpha-SIC sama da 2100. Tsarin masana'antu na silicon carbide an tsaftace shi da yashi mai inganci na quartz da coke na petroleum a cikin tanderu mai juriya. Ana niƙa tubalan silicon carbide masu tsabta, ana tsaftace tushen acid, rabuwar maganadisu, tantancewa ko zaɓin ruwa don samar da nau'ikan samfuran girman barbashi.
Halayen kayan abu na simintin silicon carbide mai matsin lamba a yanayi:
Silicon carbide yana da kyakkyawan kwanciyar hankali na sinadarai, ƙarfin jure zafi, ƙimar faɗaɗa zafi, juriyar lalacewa, don haka baya ga amfani da gogewa, akwai amfani da yawa: Misali, foda silicon carbide an lulluɓe shi a bangon ciki na bututun turbine ko silinda tare da tsari na musamman, wanda zai iya inganta juriyar lalacewa da tsawaita rayuwar sau 1 zuwa 2. An yi shi da ƙananan girma, nauyi mai sauƙi, ƙarfin kayan hana zafi, ingancin kuzari yana da kyau sosai. Carbide silicon mai ƙarancin inganci (gami da kusan kashi 85% na SiC) kyakkyawan deoxidizer ne don ƙara saurin yin ƙarfe da kuma sarrafa abubuwan sinadarai cikin sauƙi don inganta ingancin ƙarfe. Bugu da ƙari, ana amfani da carbide silicon mai matsin lamba a cikin yanayi sosai wajen kera sassan lantarki na sandunan carbon silicon.
Silicon carbide yana da tauri sosai. Tauri na Morse shine 9.5, na biyu bayan lu'u-lu'u mai tauri a duniya (10), semiconductor ne mai kyakkyawan yanayin zafi, yana iya jure wa iskar shaka a yanayin zafi mai yawa. Silicon carbide yana da aƙalla nau'ikan crystalline 70. Plutonium-silicon carbide isomer ne na gama gari wanda ke samuwa a yanayin zafi sama da 2000 kuma yana da tsarin crystalline mai hexagonal (kamar wurtzite). Sintered silicon carbide a ƙarƙashin matsin lamba na yanayi.
Amfani da silicon carbide a cikin masana'antar semiconductor
Sarkar masana'antar semiconductor ta silicon carbide galibi ta ƙunshi foda mai tsabta na silicon carbide, substrate guda ɗaya, takardar epitaxial, abubuwan da ke cikin wutar lantarki, marufi na module da aikace-aikacen ƙarshe.
1. Substrate na lu'ulu'u guda ɗaya Substrate na lu'ulu'u guda ɗaya abu ne mai tallafawa semiconductor, kayan aiki mai sarrafawa da substrate na girma na epitaxial. A halin yanzu, hanyoyin girma na lu'ulu'u guda ɗaya na SiC sun haɗa da hanyar canja wurin tururi na zahiri (hanyar PVT), hanyar lokaci na ruwa (hanyar LPE), da kuma hanyar adana tururi mai zafi (hanyar HTCVD). Carbide na silicon mai sinadari a ƙarƙashin matsin lamba na yanayi.
2. Takardar Epitaxial Takardar Epitaxial ta Silicon carbide, takardar silicon carbide, fim ɗin kristal guda ɗaya (layin epitaxial) tare da alkibla iri ɗaya da tauraruwar substrate wacce ke da wasu buƙatu don substrate na silicon carbide. A aikace-aikace, kusan duk ana ƙera na'urorin semiconductor masu faɗi a cikin Layer na epitaxial, kuma guntun silicon da kanta ana amfani da shi ne kawai a matsayin substrate, gami da substrate na Layer na GaN epitaxial.
3. Foda mai yawan tsarki na silicon carbide Foda mai yawan tsarki na silicon carbide shine kayan da ake amfani da su wajen haɓaka lu'ulu'u guda ɗaya na silicon carbide ta hanyar hanyar PVT, kuma tsarkin samfurin yana shafar ingancin girma da halayen lantarki na lu'ulu'u guda ɗaya na silicon carbide.
4. Na'urar wutar lantarki wata na'urar lantarki ce mai faɗi da aka yi da kayan silicon carbide, wadda ke da halaye na zafin jiki mai yawa, yawan mita da kuma inganci mai yawa. Dangane da tsarin aikin na'urar, na'urar samar da wutar lantarki ta SiC ta ƙunshi diode mai ƙarfi da bututun canza wutar lantarki.
5. Tashar A cikin aikace-aikacen semiconductor na ƙarni na uku, semiconductors na silicon carbide suna da fa'idar kasancewa mai dacewa da semiconductors na gallium nitride. Saboda ingantaccen canji, ƙarancin halayen dumama, nauyi mai sauƙi da sauran fa'idodin na'urorin SiC, buƙatar masana'antar da ke ƙasa tana ci gaba da ƙaruwa, kuma akwai yanayin maye gurbin na'urorin SiO2.
Lokacin Saƙo: Yuni-16-2023