I-silicon carbide isebenza cishe njengedayimane. Akuyona nje into elula kakhulu, kodwa futhi iyinto eqinile kakhulu ye-ceramic futhi inokushisa okuhle kakhulu, inwebeka kancane ekushiseni futhi imelana kakhulu nama-acid nama-lyes.
Nge-silicon carbide ceramics, izakhiwo zezinto zihlala zinjalo kuze kufike emazingeni okushisa angaphezu kuka-1,400°C. I-modulus ephezulu ye-Young engu-> 400 GPa iqinisekisa ukuzinza okuhle kakhulu kobukhulu. Lezi zakhiwo zezinto zenza i-silicon carbide imiselwe kusengaphambili ukusetshenziswa njengento yokwakha. I-Silicon carbide ilawula ukugqwala, ukuklwebheka kanye nokuguguleka ngobuchule njengoba imelana nokuguga kokungqubuzana. Izingxenye zisetshenziswa ezitshalweni zamakhemikhali, ezigayweni, ezinwebekayo kanye nasezindaweni zokukhipha noma njengemibhobho, isibonelo.
"Izinhlobo ze-SSiC (i-sintered silicon carbide) kanye ne-SiSiC (i-silicon infilted silicon carbide) sezivele zakhiwe. Lokhu kokugcina kufaneleka kakhulu ekukhiqizweni kwezingxenye ezinkulu eziyinkimbinkimbi."
I-silicon carbide iphephile ngokobuthi futhi ingasetshenziswa embonini yokudla. Esinye isicelo esijwayelekile sezingxenye ze-silicon carbide ubuchwepheshe bokuvala obushintshashintshayo obusebenzisa ama-friction bearings kanye nama-mechanical seal, isibonelo kumaphampu kanye nezinhlelo zokushayela. Uma kuqhathaniswa nezinsimbi, i-silicon carbide inika amandla izixazululo ezingabizi kakhulu ezinokuphila isikhathi eside kwamathuluzi uma zisetshenziswa ngemidiya enamandla, eshisa kakhulu. I-Silicon carbide ceramics nayo ilungele ukusetshenziswa ezimweni ezidinga kakhulu kuma-ballistics, ekukhiqizweni kwamakhemikhali, ubuchwepheshe bamandla, ekukhiqizweni kwamaphepha kanye nasezintweni zesistimu yamapayipi.
I-reacted bonded silicon carbide, eyaziwa nangokuthi i-siliconized silicon carbide noma i-SiSiC, uhlobo lwe-silicon carbide olukhiqizwa yi-chemical reaction phakathi kwe-carbon enezimbobo noma i-graphite ene-silicon encibilikisiwe. Ngenxa yemikhondo esele ye-silicon, i-reacted bonded silicon carbide ivame ukubizwa ngokuthi i-siliconized silicon carbide, noma isifinyezo sayo i-SiSiC.
Uma i-silicon carbide emsulwa ikhiqizwa ngokusila i-silicon carbide powder, imvamisa iqukethe amakhemikhali abizwa ngokuthi i-sintering aids, anezelwa ukusekela inqubo yokusila ngokuvumela amazinga okushisa aphansi okusila. Lolu hlobo lwe-silicon carbide luvame ukubizwa ngokuthi i-sintered silicon carbide, noma olufushaniswe ngokuthi i-SSiC.
Impuphu ye-silicon carbide itholakala ku-silicon carbide ekhiqizwa njengoba kuchaziwe esihlokweni se-silicon carbide.
（Viewed from: CERAMTEC）caroline@rbsic-sisic.com
Isikhathi sokuthunyelwe: Novemba-12-2018