Ukuchazwa okujwayelekile kokuphendula kwe-Sic

JwayelekileUkuchazwa kweUkuphendulaIsibopho sic

I-Bonded Sedy Sic inezakhiwo zemishini kanye nokuphikiswa kwe-oxidation. Izindleko zayo ziphansi. Emphakathini wamanje, idonsele izinyathelo eziningi neziningi ezimbonini ezahlukahlukene.

I-Sic iyisibopho esiqinile kakhulu esinamandla. Esonweni, izinga lokuphazamiseka liphansi kakhulu. Ngasikhathi sinye, ingaphezulu lezinhlayiya livame ukumboza isendlalelo esincanyana se-oxide esidlala indima yesithintelo se-deff. I-Sic Emsulwa ayikhonjwanga futhi icwecwe ngaphandle kokuthola izengezo. Noma ngabe inqubo ecindezelwe eshisayo isetshenziswa, kufanele futhi ukhethe izengezo ezifanele. Kumazinga okushisa aphezulu kakhulu, ama-worteri afanelekile ezobunjiniyela asondelene nobuningi obusezingeni eliphezulu atholakale ukuthi lisuselwa ebangeni kusuka ku-1950 ℃ kuya ku-2200 ℃ .at isikhathi esifanayo, ukwakheka kwalo kuzonqunyelwa. Yize izinhlanganisela ze-sic zingatholwa yi-vapor deposition, kukhawulelwe ekuhleleni ubukhulu obuphansi noma izinto zokwengeza. Ngenxa yesikhathi sayo eside sokuthula, izindleko zokukhiqiza zizokwanda.

Ukusabela kwe-Bonded Sic kwasungulwa ngo-1950s ngePopper. Isimiso esiyisisekelo yile:

Ngaphansi kwesenzo se-capillary Force, i-Silicon e-Liquid noma i-Silicon Alloy enomsebenzi osebenzayo ongena kuma-ceramics we-porous aqukethe ikhabhoni futhi yasungulwa i-carbon silicon. I-Carbide Carbide esanda kwakhiwa iboshelwe izinhlayiya ze-Silicon Carbide yasekuqaleni e-Situ, kanye nama-pores asele ku-filler agcwele i-ejenti yokuhlaziya.

Uma kuqhathaniswa nezinye izinqubo ze-silicon Carbide ceramics, inqubo ye-sontering inezici ezilandelayo:

Izinga lokushisa eliphansi, isikhathi esifushane sokucubungula, asikho isidingo semishini ekhethekile noma ebizayo;

Izingxenye ezihlanganisiwe ezihlanganisiwe ngaphandle kwe-shrinkage noma ushintsho lobukhulu;

Izindlela ezihlukanisiwe zokubumba (ukukhishwa, umjovo, ukucindezela nokuthulula).

Kunezindlela eziningi zokubumba. Ngenkathi esona, usayizi omkhulu nemikhiqizo eyinkimbinkimbi ingakhiqizwa ngaphandle kokucindezela. Ubuchwepheshe obuhlanganisiwe bokuphendula kwe-silicon Carbide bufundwe isikhashana leminyaka. Lobu buchwepheshe buye baba ngomunye we-Gongises yezimboni ezahlukahlukene ngenxa yezinzuzo zawo ezihlukile.