Izixazululo Ze-Crucible: Ubuchwepheshe Obubalulekile Besayensi Yezinto Zokusebenza kanye Nezicelo Zezimboni

Ama-crucible yiziqukathi ezisetshenziswa kakhulu-ezincibilikisa izinga lokushisa eliphezulu, ekuhlanganiseni kwamakhemikhali, nasezinqubweni zokulungisa izinto. Ukusebenza kwabo kunomthelela ngqo kwikhwalithi yomkhiqizo nokusebenza kahle kokukhiqiza. Ngezidingo ezikhulayo-zezinqubo zezinga lokushisa eliphezulu embonini yesimanje, ukwenza kahle izixazululo ze-crucible sekuyisihloko esibalulekile kwisayensi yezinto.

Iziphambano zendabuko ngokuvamile zenziwe nge-graphite, i-quartz, noma izitsha zobumba, kodwa lezi zinemikhawulo ekuzinzeni{0}}kwezinga lokushisa eliphezulu, ukumelana nokugqwala, kanye nempilo yesevisi. Ukuthuthukiswa kwakamuva kokuphezulu{2}}kuzinto zokusebenza ezifana ne-silicon carbide (SiC), i-zirconium oxide (ZrO₂), kanye nezitsha zobumba ezihlanganisiwe kuthuthukise kakhulu ukuqina kwe-crucible. Isibonelo, ama-silicon carbide crucibles agcina ukuqina kwesakhiwo emazingeni okushisa angaphezu kuka-1600 degree, okuwenza afanelekele ukuncibilika kwensimbi nokulungiswa kwezinto ze-semiconductor. I-Zirconia crucibles, nokho, iyinketho ekhethwayo yokuhlolwa kokuncibilika okunembayo kumalabhorethri ngenxa yokumelana nokushaqeka kwawo okuhle kakhulu kanye nokungangeni kwamakhemikhali.

Izixazululo ze-Crucible kumele zakhelwe kucatshangelwa ukusebenza kwezimo ezihlukene zohlelo lokusebenza. Isibonelo, embonini ye-metallurgical, ama-crucibles adinga ukumbozwa okukhethekile ukuze kuncishiswe ukungena kwensimbi encibilikisiwe. Embonini ye-photovoltaic, ama-crucibles we-polysilicon ingot casting adinga{2}}izinto zokuhlanzeka okuphezulu ukuze kunqandwe ukungcoliswa kokungcola. Ngaphezu kwalokho, ukwethulwa kwemiklamo yemojuli kanye{4}nezinhlelo zokushintsha okusheshayo{4}kuqhubeka kunciphisa isikhathi sokuphumula kanye nezindleko zokunakekela ekukhiqizweni kwezimboni.

Esikhathini esizayo, ukuthuthukiswa kobuchwepheshe be-crucible kuzogxila ekuthuthukisweni okuhlakaniphile nokuluhlaza. Ngokuhlanganisa izinzwa zokushisa namasistimu okuqapha aphikisayo,{1}}impendulo yedatha yesikhathi sangempela ingathuthukisa inqubo yokuncibilika. Ngaphezu kwalokho, ukuthuthukiswa kwezinto ezivimbela imvelo ezivimbelayo kuzonciphisa ukukhishwa kwemfucuza yezimboni. Ngokuhlanganisa izinto ezintsha kusayensi yezinto zokwakha, i-thermodynamics, nezinqubo zokukhiqiza, izixazululo ze-crucible zizoqhubeka nokuhlinzeka ngosekelo olusebenza kahle kakhulu noluthembekile embonini{4}}yezinga lokushisa eliphezulu.