Ishidi ledayimane laseChina le-molybdenum molybdenum ku-CVD Umkhiqizi Nomhlinzeki

Ishidi ledayimane le-molybdenum molybdenum ku-CVD

Incazelo emfushane:

Indawo ephezulu yokuncibilika ye-Molybdenum, ukuqhutshwa kokushisa okushisayo kanye nokungangenisi kwamakhemikhali kuyenza ifaneleke izinhlelo zokusebenza ze-CVD lapho ukuqina kwezinga lokushisa eliphezulu kanye nokumelana nokusebenza kabusha kwamakhemikhali kubalulekile. Lezi zingxenye zingasetshenziselwa ukukhiqiza amadivaysi e-semiconductor, ifilimu emincane enamathela kanye nezinto ezisekelwe edayimane zezinhlelo zokusebenza ezihlukahlukene zezimboni nocwaningo.

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Iyiphi indlela ye-CVD yamadayimane?

Indlela ye-chemical vapor deposition (CVD) yedayimane ihlanganisa ukusebenzisa inqubo yamakhemikhali ukuze kuhlanganiswe ifilimu yedayimane noma ukunamathela endaweni elawulwayo. Ngale ndlela, ingxube yegesi, ngokuvamile equkethe amagesi e-hydrocarbon njenge-methane, yethulwa egumbini lokusabela kanye nento engaphansi kwe-substrate efana namawafa e-molybdenum noma amawafa edayimane. Igesi ibe isisebenza ngezindlela ezihlukahlukene, njengokushisa noma i-plasma, ukuze ihlephule ama-molecule e-hydrocarbon futhi ifake ama-athomu ekhabhoni ku-substrate, okuholela ekukhuleni kwamakristalu edayimane.

Inqubo ye-CVD yedayimane inikeza izinzuzo eziningana, kuhlanganise nekhono lokukhiqiza ikhwalithi ephezulu yedayimane ngokulawula okunembile kokuqina, ukufana nokubunjwa. Iphinde ivumele ukubekwa kwamafilimu edayimane ezintweni ezihlukene ze-substrate, okuvumela ukudalwa kwezingxenye ezinamekwe ngedayimane zezinhlelo zokusebenza ezihlukene zezimboni nocwaningo.

Sekukonke, indlela ye-CVD yedayimane iyindlela eguquguqukayo nesetshenziswa kabanzi ekukhiqizeni amafilimu edayimane okwenziwa kanye nezingubo ezinezakhiwo ezenziwe ngokwezifiso, okuwenza abe yigugu ezimbonini ezifana ne-electronics, amathuluzi okusika, nezingubo ezingagqoki.

Buyini ubulukhuni be-CVD coating?

Ukuqina kokufakwa kwe-chemical vapor deposition (CVD) kungahluka kuye ngezinto ezithile ezifakiwe kanye nemingcele yenqubo esetshenzisiwe. Kodwa-ke, izintambo ze-CVD zaziwa ngobulukhuni bazo obungavamile, ngokuvamile obudlula lokho kwezingubo zendabuko zokubeka umhwamuko (PVD).

Ngezingubo zedayimane ze-CVD, ubulukhuni buphawuleka ikakhulukazi. Idayimane ingenye yezinto ezilukhuni kunazo zonke ezaziwayo, futhi okunamathelayo kwedayimane le-CVD kunobulukhuni obungavamile obuvame ukudlula obezinye izinhlobo zezingubo. Ukuqina kwezingubo zedayimane ze-CVD kuvame ukukalwa kusetshenziswa isikali sobulukhuni be-Vickers futhi kusuka ku-8000 HV kuya ngaphezu kuka-10000 HV, okuyenza ibe enye yezinto eziqinile nezingagugi kakhulu.

Kwezinye izigqoko ze-CVD, ezifana ne-carbide noma i-nitride-based coatings, ubulukhuni bungase buphakame, bunikeze ukumelana nokugqoka okuhle kakhulu nokuqina ezinhlobonhlobo zezicelo zezimboni.

Sekukonke, izambatho ze-CVD zibaluleke kakhulu ngenxa yobulukhuni bazo obungavamile, okuzenza zifaneleke izinhlelo zokusebenza lapho ukumelana nokugqokwa, ukuzinza kwezinga lokushisa eliphezulu, nokusebenza kwesikhathi eside kubalulekile.