Izindaba

  • Ukulungiselela inqubo ye-carbon fibre composite materials

    Ukulungiselela inqubo ye-carbon fibre composite materials

    I-Carbon-Carbon Composite Materials Composite Materials I-Carbon/carbon (C/C) iyinhlanganisela ye-carbon fiber eqiniswe uchungechunge lwezindawo ezinhle kakhulu ezifana namandla aphezulu kanye ne-modulus, amandla adonsela phansi akhethekile, i-coefficient encane yokwandisa ukushisa, ukumelana nokugqwala, ukushisa. ...
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  • Izinkambu zokusetshenziswa zezinto ezihlanganisiwe ze-carbon/carbon

    Izinkambu zokusetshenziswa zezinto ezihlanganisiwe ze-carbon/carbon

    Kusukela yasungulwa ngeminyaka yawo-1960s, izinhlanganisela ze-carbon-carbon C/C zithole ukunakwa okukhulu kwamasosha, i-aerospace, kanye nezimboni zamandla enuzi. Ekuqaleni, inqubo yokwenziwa kwenhlanganisela ye-carbon-carbon yayiyinkimbinkimbi, inzima ngokobuchwepheshe, futhi inqubo yokulungiselela yayi...
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  • Indlela yokuhlanza isikebhe se-PECVD graphite?| Amandla we-VET

    Indlela yokuhlanza isikebhe se-PECVD graphite?| Amandla we-VET

    1. Ukuvuma ngaphambi kokuhlanza i-1) Uma isikebhe / umthwali we-graphite we-PECVD sisetshenziswa izikhathi ezingaphezu kwe-100 kuya kwezingu-150, opharetha udinga ukuhlola isimo sokumboza ngesikhathi. Uma kukhona ukunamathela okungavamile, kudinga ukuhlanzwa nokuqinisekiswa. Umbala wokwemboza ojwayelekile we-th...
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  • Isimiso se-PECVD graphite boat for solar cell (coating) | Amandla we-VET

    Isimiso se-PECVD graphite boat for solar cell (coating) | Amandla we-VET

    Okokuqala, sidinga ukwazi i-PECVD (I-Plasma Enhanced Chemical Vapor Deposition). I-Plasma iwukuqiniswa kokunyakaza okushisayo kwama-athomu. Ukungqubuzana phakathi kwabo kuzodala ukuthi ama-molecule egesi abe ionized, futhi impahla izoba yingxube ye-fr...
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  • Izimoto ezintsha zamandla zifinyelela kanjani i-vacuum assisted braking? | Amandla we-VET

    Izimoto ezintsha zamandla zifinyelela kanjani i-vacuum assisted braking? | Amandla we-VET

    Izimoto ezintsha ezisebenza ngamandla kagesi azinazo izinjini zikaphethiloli, ngakho-ke zifinyelela kanjani i-vacuum-assisted braking ngesikhathi sokubhuleka? Izimoto zamandla amasha zizuza ngokusiza amabhuleki ngezindlela ezimbili: Indlela yokuqala ukusebenzisa i-electric vacuum booster braking system. Lolu hlelo lusebenzisa vac kagesi...
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  • Kungani sisebenzisa itheyiphu ye-UV ukwenza ukudayela kwe-wafer? | Amandla we-VET

    Kungani sisebenzisa itheyiphu ye-UV ukwenza ukudayela kwe-wafer? | Amandla we-VET

    Ngemuva kokuthi i-wafer idlule inqubo yangaphambilini, ukulungiswa kwe-chip kuqediwe, futhi idinga ukusikwa ukuze kuhlukaniswe ama-chips ku-wafer, futhi ekugcineni ihlanganiswe. Inqubo yokusika i-wafer ekhethelwe ama-wafer anobukhulu obuhlukene nayo ihlukile: ▪ Ama-wafer anogqinsi olungaphezulu ...
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  • I-wafer warpage, yini okufanele uyenze?

    I-wafer warpage, yini okufanele uyenze?

    Enqubweni ethile yokupakisha, izinto zokupakisha ezinama-coefficients ahlukene okwandisa ukushisa asetshenziswa. Phakathi nenqubo yokupakisha, i-wafer ifakwa ku-substrate yokupakisha, bese kwenziwa izinyathelo zokufudumeza nokupholisa ukuze kuqedelwe ukupakisha. Nokho, ngenxa yokungezwani phakathi...
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  • Kungani izinga lokusabela lika-Si ne-NaOH lishesha kune-SiO2?

    Kungani izinga lokusabela lika-Si ne-NaOH lishesha kune-SiO2?

    Kungani izinga lokusabela kwe-silicon ne-sodium hydroxide lingedlula ele-silicon dioxide lingahlaziywa kulezi zici ezilandelayo: Umehluko ku-chemical bond energy ▪ Ukusabela kwe-silicon ne-sodium hydroxide: Lapho i-silicon isabela ne-sodium hydroxide, ibhondi ye-Si-Si i-silicon ...
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  • Kungani i-silicon inzima kangaka kodwa i-brittle?

    Kungani i-silicon inzima kangaka kodwa i-brittle?

    I-Silicon iyikristalu ye-athomu, ama-athomu ayo axhunywe komunye nomunye ngamabhondi ahlangene, akha isakhiwo senethiwekhi yendawo. Kulesi sakhiwo, izibopho eziqinile phakathi kwama-athomu ziqondise kakhulu futhi zinamandla ebhondi ephezulu, okwenza i-silicon ibonise ubulukhuni obukhulu lapho imelana namandla angaphandle ...
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