Izindlela Zokwenza I-Silicon Carbide Ceramics

Izindlela Zokwenza I-Silicon Carbide Ceramics: Uhlolojikelele Oluphelele

Isakhiwo esiyingqayizivele sekristalu kanye nezakhiwo ze-silicon carbide ceramics zifaka isandla ezintweni zayo ezinhle kakhulu. Zinamandla amahle kakhulu, ubulukhuni obuphezulu kakhulu, ukumelana nokugqokwa okuhle kakhulu, ukumelana nokugqwala, ukuguquguquka okuphezulu kwe-thermal kanye nokumelana nokushaqeka okuhle kokushisa. Lezi zakhiwo zenza i-silicon carbide ceramics ilungele ukusetshenziswa kwe-ballistic.

Ukwakhiwa kwe-silicon carbide ceramics kuvame ukusebenzisa izindlela ezilandelayo:

1. Ukubumba ukucindezela: Ukubumba ukucindezela kuyindlela esetshenziswa kakhulu yokukhiqiza amashidi e-silicon carbide bulletproof. Inqubo ilula, kulula ukuyisebenzisa, iphezulu ekusebenzeni kahle futhi ifanele ukukhiqizwa okuqhubekayo.

2. Ukubumba umjovo: Ukubumba komjovo kunokuguquguquka okuhle kakhulu futhi kungakha ubujamo obuyinkimbinkimbi nezakhiwo. Le ndlela inenzuzo ikakhulukazi lapho ikhiqiza izingxenye ze-ceramic ezimise okwe-silicon carbide.

3. Ukucindezela okubandayo kwe-isostatic: Ukucindezela okubandayo kwe-isostatic kuhilela ukusetshenziswa kwamandla afanayo emzimbeni oluhlaza, okuholela ekusabalaliseni kokuminyana okufanayo. Lobu buchwepheshe buthuthukisa kakhulu ukusebenza komkhiqizo futhi bufanele ukukhiqizwa kwezitsha zobumba ze-silicon carbide ezisebenza kahle kakhulu.

4. Ukubumba umjovo wejeli: Ukubumba umjovo wejeli kuyindlela entsha yokuhlanganisa usayizi wenetha. Umzimba oluhlaza okhiqizwayo unesakhiwo esifanayo namandla aphezulu. Izingxenye ze-ceramic ezitholakalayo zingacutshungulwa ngemishini ehlukahlukene, okunciphisa izindleko zokucubungula ngemva kokugcoba. Ukubumba umjovo we-gel kulungele ikakhulukazi ukwakhiwa kwe-silicon carbide ceramics enezakhiwo eziyinkimbinkimbi.

Ngokusebenzisa lezi zindlela zokwakha, abakhiqizi bangathola i-silicon carbide ceramics yekhwalithi ephezulu enezakhiwo ezinhle kakhulu zemishini ne-ballistic. Ikhono lokwenza i-silicon carbide ceramics ibe yizinhlobonhlobo zomumo nezakhiwo ivumela ukwenziwa ngokwezifiso kanye nokwenza kahle ukuze kuhlangatshezwane nezidingo ezithile zezinhlelo zokusebenza ezahlukene.

Ngaphezu kwalokho, ukusebenza kahle kwezindleko ze-silicon carbide ceramics kwandisa ukukhanga kwayo njengento esebenza kahle kakhulu emelana ne-ballistic. Le nhlanganisela yezakhiwo ezifiselekayo nezindleko ezinengqondo yenza izitsha zobumba ze-silicon carbide zibe yimbangi eqinile endaweni yezikhali zomzimba.

Sengiphetha, i-silicon carbide ceramics iyizinto ezihamba phambili ze-ballistic ngenxa yezakhiwo zazo ezinhle kakhulu nezindlela zokubumba eziguquguqukayo. Isakhiwo sekristalu, amandla, ubulukhuni, ukumelana nokugqoka, ukumelana nokugqwala, ukuqhutshwa kwe-thermal kanye nokumelana nokushisa okushisayo kwe-silicon carbide ceramics kubenza kube ukukhetha okukhangayo kubakhiqizi nabacwaningi. Ngamasu ahlukahlukene okwenza, abakhiqizi bangakwazi ukuthunga i-silicon carbide ceramics ukuhlangabezana nezinhlelo zokusebenza ezithile, baqinisekise ukusebenza kahle nokuvikelwa. Ikusasa le-silicon carbide ceramics liyathembisa njengoba liqhubeka nokuthuthuka futhi lenza kahle emkhakheni wezinto ezibonakalayo.

Ngokuqondene nokuvikelwa kwe-ballistic, inhlanganisela yamashidi e-polyethylene kanye nokufakwa kwe-ceramic kufakazelwe ukuthi kusebenza kahle kakhulu. Phakathi kwezinketho ezihlukahlukene zobumba ezitholakalayo, i-silicon carbide idonse ukunakwa okukhulu ekhaya naphesheya. Eminyakeni yamuva, abacwaningi nabakhiqizi bebelokhu behlola amandla e-silicon carbide ceramics njengento ephezulu yokusebenza kwe-ballistic-resistant ngenxa yezakhiwo zayo ezinhle kakhulu kanye nezindleko ezilinganiselwe.

I-silicon carbide iyinhlanganisela eyakhiwe ngokunqwabelanisa ama-tetrahedron e-Si-C, futhi inezinhlobo ezimbili zekristalu, u-α no-β. Ezingeni lokushisa elishisayo elingaphansi kuka-1600 ° C, i-silicon carbide ikhona ngendlela ye-β-SiC, futhi uma izinga lokushisa lidlula i-1600 ° C, i-silicon carbide ishintsha ibe yi-α-SiC. I-covalent bond ye-α-silicon carbide inamandla kakhulu, futhi ingagcina isibopho esinamandla amakhulu ngisho nasezingeni eliphezulu lokushisa.