Iindlela zokuSebenza zeSilicon Carbide Ceramics

Iindlela zokuqulunqa iiCeramics zeSilicon Carbide: Isishwankathelo esiBanzi

Isakhiwo esiyingqayizivele sekristale kunye neepropati ze-silicon carbide ceramics zinegalelo kwiipropati zayo ezintle. Banamandla abalaseleyo, ubunzima obuphezulu kakhulu, ukuxhathisa okugqwesileyo kokunxiba, ukumelana nokugqwala, ukuguquguquka okuphezulu kwe-thermal kunye nokumelana nokothuka kwe-thermal. Ezi zakhiwo zenza i-silicon carbide ceramics ilungele ukusetyenziswa kwe-ballistic.

Ukwenziwa kwe-silicon carbide ceramics ngokuqhelekileyo kuthatha ezi ndlela zilandelayo:

1. Ukubunjwa koxinzelelo: Ukubumba ukunyanzeliswa yindlela esetyenziswa ngokubanzi ekwenzeni i-silicon carbide bulletproof sheets. Inkqubo ilula, kulula ukuyisebenzisa, iphezulu ekusebenzeni kwaye ifanelekile kwimveliso eqhubekayo.

2. I-injection molding: I-injection molding inokulungelelaniswa kakuhle kwaye inokudala imilo enzima kunye nezakhiwo. Le ndlela inenzuzo ngakumbi xa uvelisa iinxalenye ze-ceramic ze-silicon carbide zeceramic.

3. I-Cold isostatic pressing: I-Cold isostatic pressing ibandakanya ukusetyenziswa kwamandla afanayo kumzimba oluhlaza, okubangelwa ukusabalalisa kobuninzi obufanayo. Le teknoloji iphucula kakhulu ukusebenza kwemveliso kwaye ifanelekile kwimveliso ye-silicon carbide ceramics ephezulu yokusebenza.

4. Ukubumba inaliti yejeli: Ukubumba inaliti yejeli yindlela entsha yokubumba isayizi ekufutshane nenetha. Umzimba oluhlaza oveliswayo unesakhiwo esifanayo kunye namandla aphezulu. Amacandelo e-ceramic afunyenweyo anokucutshungulwa ngoomatshini abahlukeneyo, okunciphisa iindleko zokucutshungulwa emva kokucoca. Ukubumba inaliti ye-gel ifaneleke ngokukodwa ukuveliswa kwe-silicon carbide ceramics enezakhiwo ezinzima.

Ngokusebenzisa ezi ndlela zokwenza, abavelisi banokufumana umgangatho ophezulu we-silicon carbide ceramics kunye neempawu ezibalaseleyo zoomatshini kunye ne-ballistic. Ukukwazi ukwenza i-silicon carbide ceramics kwiintlobo ezahlukeneyo zeemilo kunye nezakhiwo zivumela ukulungelelaniswa kunye nokulungiswa ukuhlangabezana neemfuno ezithile zezicelo ezahlukeneyo.

Ukongeza, ukusebenza kakuhle kwe-silicon carbide ceramics kwandisa umtsalane njengento ephezulu yokusebenza kwe-ballistic-resistant material. Le ndibaniselwano yezakhiwo ezinqwenelekayo kunye neendleko ezifanelekileyo zenza iiseramics zesilicon carbide zibengumbangi onamandla kwindawo yesikrweqe somzimba.

Ukuqukumbela, i-silicon carbide ceramics zezona zinto zikhokelayo ze-ballistic ngenxa yeepropathi zazo ezigqwesileyo kunye neendlela eziguquguqukayo zokubumba. Ubume bekristale, amandla, ukuqina, ukumelana nokunxiba, ukuxhathisa kwe-corrosion, i-thermal conductivity kunye ne-thermal shock resistance ye-silicon carbide ceramics yenza kube lukhetho olukhangayo kubakhiqizi kunye nabaphandi. Ngobuchule obuhlukeneyo bokuqulunqa, abavelisi banokulungelelanisa i-silicon carbide ceramics ukuhlangabezana nezicelo ezithile, ukuqinisekisa ukusebenza kakuhle kunye nokhuseleko. Ikamva le-silicon carbide ceramics liyathembisa njengoko ziqhubeka nokuphuhlisa kwaye ziqhuba kakuhle kwintsimi ye-ballistic materials.

Ngokubhekiselele ekukhuselweni kwe-ballistic, ukudibanisa kwamaphepha e-polyethylene kunye nokufakwa kwe-ceramic kuye kwabonakala kusebenza kakhulu. Phakathi kokhetho olwahlukeneyo lweceramic olukhoyo, i-silicon carbide itsale umdla omkhulu ekhaya nakwamanye amazwe. Kwiminyaka yakutshanje, abaphandi kunye nabavelisi baphonononga amandla e-silicon carbide ceramics njengento ephezulu yokusebenza kwe-ballistic-resistant ngenxa yeempawu zayo ezintle kunye neendleko eziphantsi.

I-silicon carbide yikhompawundi eyenziwe ngokubeka i-Si-C tetrahedron, kwaye ineefom ezimbini ze-crystal, α kunye ne-β. Kwiqondo lokushisa elingaphantsi kwe-1600 ° C, i-silicon carbide ikhona ngendlela ye-β-SiC, kwaye xa izinga lokushisa lidlula i-1600 ° C, i-silicon carbide iguqulela kwi-α-SiC. I-covalent bond ye-α-silicon carbide yomelele kakhulu, kwaye inokugcina ibhondi ephezulu yamandla nakwiqondo lokushisa eliphezulu.