Isetshenziselwa ini i-tungsten hexafluoride?
Isetshenziselwa ini i-tungsten hexafluoride?
I-Tungsten hexafluorideiyigesi engenambala, enobuthi futhi egqwalayo enesisindo esingaba ngu-13 g/L, okuphindwe izikhathi ezingu-11 ukuminyana komoya kanye nenye yamagesi aminyene kakhulu. Embonini ye-semiconductor, i-tungsten hexafluoride isetshenziswa kakhulu kwinqubo ye-chemical vapor deposition (CVD) ukufaka insimbi ye-tungsten. Ifilimu ye-tungsten efakiwe ingasetshenziswa njengomugqa wokuxhumana wemigodi nezimbobo zokuthintana, futhi inezici zokumelana okuphansi nendawo ephezulu yokuncibilika. I-Tungsten hexafluoride iphinde isetshenziswe ekufakweni kwamakhemikhali, i-plasma etching nezinye izinqubo.
Iliphi igesi eliminyene kakhulu elingenabuthi?
Igesi eliminyene kakhulu elingenabo ubuthi i-argon (Ar) enesisindo esingu-1.7845 g/L. I-Argon iyigesi engasebenzi, engenambala futhi ayinaphunga, futhi ayisabelani kalula nezinye izinto. I-Argon gas isetshenziswa kakhulu ekuvikelweni kwegesi, ukushisela insimbi, ukusika insimbi, i-laser nezinye izinkambu.
Ingabe i-tungsten inamandla kune-titanium?
I-Tungsten ne-titanium zombili izakhi zensimbi ezinamaphoyinti aphezulu okuncibilika namandla. Iphuzu elincibilikayo le-tungsten lingu-3422°C futhi amandla angu-500 MPa, kuyilapho indawo encibilikayo ye-titanium ingu-1668°C futhi amandla angu-434 MPa. Ngakho-ke, i-tungsten inamandla kune-titanium.
Iyingozi kangakanani i-tungsten hexafluoride?
I-Tungsten hexafluorideigesi enobuthi obunamandla obungadala umonakalo omkhulu emzimbeni womuntu uma ihogeliwe. I-LD50 ye-tungsten hexafluoride ingu-5.6 mg/kg, okungukuthi, ukuhogela okungu-5.6 mg we-tungsten hexafluoride ngekhilogremu ngayinye yesisindo somzimba kuzoholela esilinganisweni sokufa esingu-50%. I-Tungsten hexafluoride ingacasula umgudu wokuphefumula, ibangele izimpawu ezinjengokukhwehlela, ukuqina kwesifuba, kanye ne-dyspnea. Izimo ezimbi kakhulu zingaholela edema yamaphaphu, ukwehluleka ukuphefumula ngisho nokufa.
Ingabe i-tungsten ingagqwala?
I-Tungsten ngeke igqwale. I-Tungsten iyinsimbi engasebenzi engaphenduli kalula nge-oxygen emoyeni. Ngakho-ke, i-tungsten ngeke igxume ekushiseni okujwayelekile.
Ingabe i-asidi ingagqwala i-tungsten?
Ama-Acid angakwazi ukugqwala i-tungsten, kodwa ngenani eliphansi. Ama-asidi aqinile afana ne-concentrated sulfuric acid kanye ne-concentrated hydrochloric acid angakwazi ukugqwalisa i-tungsten, kodwa kuthatha isikhathi eside. Ama-asidi abuthakathaka afana ne-dilute sulfuric acid kanye ne-dilute hydrochloric acid anomphumela obuthakathaka wokugqwala ku-tungsten.
I-Silane Gas: Yembula Izakhiwo Nezicelo Zayo
Isicelo se-Amonia embonini ye-Semiconductor
