Kwimveliso ye-Si kunye ne-FeSi, umthombo oyintloko we-Si yi-SiO2, ngendlela ye-quartz.Iimpendulo nge-SiO2 zivelisa irhasi ye-SiO ethi iphinde isebenze nge-SiC ukuya kwi-Si.Ngexesha lokufudumeza, i-quartz iya kuguqula kwezinye iinguqulelo ze-SiO2 kunye ne-cristobalite njengenqanaba elizinzileyo lobushushu obuphezulu.Inguqu kwicristobalite yinkqubo ecothayo.Umyinge wayo uphandwe kwimithombo emininzi ye-quartz yamashishini kwaye ibonakaliswe ukuba iyahluka kakhulu phakathi kweentlobo ezahlukeneyo zequartz.Ezinye iiyantlukwano zokuziphatha ngexesha lokufudumeza phakathi kwale mithombo ye-quartz, njengokunciphisa ubushushu kunye nokwandiswa kwevolumu, nazo ziye zafundwa.Umlinganiselo we-quartz-cristobalite uya kuchaphazela izinga leempendulo ezibandakanya i-SiO2.Iziphumo zoshishino kunye nezinye iimpembelelo zomahluko obonwayo phakathi kweentlobo ze-quartz zixoxiwe.Kumsebenzi wangoku, kuphuhliswe indlela entsha yovavanyo, kwaye uphando lwemithombo emitsha emininzi yequartz luqinisekise umahluko omkhulu obonwe ngaphambili phakathi kwemithombo eyahlukeneyo.Ukuphindaphindwa kwedatha kuye kwafundwa kwaye umphumo womoya wegesi uphandwa.Iziphumo ezivela kumsebenzi wangaphambili zibandakanyiwe njengesiseko sengxoxo.
I-quartz edibeneyo ineempawu ezintle kakhulu zokushisa kunye neekhemikhali njengezinto ezinqamlekileyo zokukhula kwekristale enye ukusuka kwi-nyibilika, kwaye ukucoceka kwayo okuphezulu kunye neendleko eziphantsi kwenza ukuba kube nomtsalane ngakumbi ekukhuleni kweekristale ezicocekileyo.Nangona kunjalo, ekukhuleni kweentlobo ezithile zeekristale, i-layer ye-pyrolytic carbon coating iyadingeka phakathi kwe-melt kunye ne-quartz crucible.Kweli nqaku, sichaza indlela yokufaka i-pyrolytic carbon coating ngokuthuthwa komphunga.Indlela ibonakaliswe ukuba iyasebenza ekuveliseni i-coating efanayo kuluhlu olubanzi lweesayizi kunye neemilo ze-crucible.Isiphumo sokugquma kwekhabhoni ye-pyrolytic sibonakaliswe ngemilinganiselo yokunciphisa i-optical attenuation.Kwinkqubo yokwaleka nganye, ubukhulu bokwambatha buboniswa kusondela kwixabiso lesiphelo kunye nomsila ocacileyo njengoko ixesha le-pyrolysis lisanda, kwaye ubukhulu obuphakathi bunyuka ngokumalunga nomlinganiselo womthamo womphunga we-hexane okhoyo kummandla we-pyrolytic. ukutyabeka.Iikristale ze-quartz ezigqunywe yile nkqubo zisetyenziselwe ukukhula ngempumelelo ukuya kuthi ga kwi-2-in-diameter ye-Nal enye yeekristale, kunye nomgangatho ongaphezulu we-Nal crystal wafunyanwa uphucula njengoko ubukhulu bokutya bukhula.
Ixesha lokuposa: Aug-29-2023