(Umgubo weCeramicIveliswe nguWintrustek)

Umgubo weCeramicyenziwe ngamasuntswana e-ceramic kunye nezongezo ezenza kube lula ukuzisebenzisa ukwenza amacandelo. I-agent ebophelelayo isetyenziselwa ukugcina ipowder kunye emva kokudibanisa, ngelixa i-ejenti yokukhulula yenza kube lula ukususa inxalenye edibeneyo kwi-compaction die ngokulula.

Imizekelo yezinto eziphathekayo

ALUMINA

I-Ceramic ene-chemical formula Al2O3 ibizwa ngokuba yi-alumina. Iimpawu eziphambili zala ma powders bubume bazo, ubunyulu, ukuqina, kunye nommandla othile.

I-ALUMINIUM NITRIDE

Kwimizi-mveliso ye-semiconductor kunye ne-electronics, ezi powders' iimpawu ze-thermal kunye nombane zixatyiswa ngokukodwa.

HEXAGONAL BORON NITRIDE

I-hexagonal boron nitrideine-insulation efanelekileyo yombane, i-thermal conductivity, kunye nokuzinza kweekhemikhali.

ZYP

Umgubo we-ZYP wenziwe nge-zirconia ezinziswe nge-yttrium oxide kwaye ngumgubo ocolekileyo kakhulu, osebenza kakhulu.

Iindlela Zokuvelisa

UKUSILA/UKUSILA

Ukugaya, okwakwaziwa ngokuba kukusila, yindlela yokuvelisa umgubo we-ceramic apho ubungakanani besuntswana le-ceramic substance iyancitshiswa de iguqulwe ibe ngumgubo.

UKUSASA ITEYIPHA

Enye inkqubo exhaphakileyo yokuvelisa umgubo weceramic kukuphosa iteyiphu. Iqeshwe kwimveliso yee-substrates zesekethe ezidibeneyo. Ukongezelela, isetyenziswe ekwakhiweni kwee-capacitors ezininzi kunye nezakhiwo zeesekethe ezidibeneyo. Ukuphosa ngokuphindaphindiweyo kwi-carrier surface usebenzisa i-ceramic powder, i-solvent ye-organic, kunye ne-polymer binder. I-Teflon okanye enye into engeyiyo intonga isebenza njengendawo yokuthwala. Emva koko, usebenzisa umgca wemela, indibaniselwano ye-ceramic powder (slurry) isasazwa kuwo wonke umhlaba ogudileyo ukuya kwinqanaba elimiselweyo. Emva kokoma, umaleko womxube womgubo weceramic ulungiselelwa ukusetyenzwa.

UKUQHUBEKA

Umgubo weCeramic uguqulwa ngale nkqubo ukusuka kwimo yegranular ukuya kubumbano ngakumbi kunye noxineneyo. Le nkqubo idibanisa umgubo weceramic, njengoko igama libonisa. Ukucofa okubandayo okanye ukucinezela okushushu kungasetyenziselwa ukuhlanganisa amaqhekeza e-ceramic.

UKUBUMBA ISITOFU

I-injection molding isetyenziselwa ukuvelisa izinto ze-ceramic kunye neejometri ezinzima. Le nkqubo ingasetyenziselwa ukuvelisa izinto ze-ceramic ngobuninzi. Isitofu sokubumba yinkqubo eguquguqukayo. Isetyenziselwa zombini ii-ceramics ze-oxide kunye ne-non-oxide ceramics. Ukongeza, ichaneke kakhulu. Imveliso yokugqibela yokubumba inaliti ikumgangatho ophezulu.

UKULAHLWA KWE-SLIP

I-Slip casting yindlela yokuvelisa i-ceramic yomgubo edla ngokusetyenziswa kwizinto zomdongwe. Ngokuqhelekileyo, isetyenziselwa ukwenza iimilo ekunzima ukuzenza usebenzisa ivili. I-Slip casting yinkqubo ende enokuthi ithathe ukuya kwiiyure ezingama-24. Ngakolunye uhlangothi, imveliso egqityiweyo ichanekile kwaye inokwethenjelwa. EYurophu, i-slip cast yaqala nge-1750s, kwaye e-China, ibuyele emva nangakumbi. Ukunqunyanyiswa komgubo weceramic kwenza ukuba ihlangane njengesiliphu. Ukungunda okunemingxuma emva koko kuzaliswa ngesiliphu. Njengoko isikhunta sisoma, senze umaleko oqinileyo ukusuka kwi-slips.

UKUPHOSWA KWEGEL

Ukwenziwa kweGel yinkqubo yokwenziwa komgubo weceramic eyaqala eCanada ngeminyaka yoo-1960. Isetyenziselwa ukwenza iimilo ze-ceramic ezintsonkothileyo ezomeleleyo nezikumgangatho obalaseleyo. Kule nkqubo, i-monomer, i-cross-linker, kunye ne-radical initiator yamahhala idibaniswa ne-ceramic powder. Ukudibanisa ke kongezwa ekumisweni kwamanzi. Ukwandisa ukuqina komxube, i-binder esele ikhona i-polymerized. Ukudibanisa ke kuguqulelwe kwijel. Umxube we-gel ugalelwe kwi-mold kwaye uvumeleke ukuba uqiniswe apho. Emva kokuqinisa, i-substance iyasuswa kwi-mold kwaye yomiswe. Imveliso egqityiweyo ngumzimba oluhlaza othi emva koko utshiswe.

EXTRUSTION

I-Extrusion yinkqubo yokwenza umgubo weceramic onokuthi usetyenziswe ukubumba imathiriyeli ibe yimilo enqwenelekayo. Ukutsala umgubo weceramic kwidayisi enecandelo elithile elinqamlezayo. Ukuveliswa kwee-ceramics kunye ne-cross-sections eyinkimbinkimbi kunokwenzeka ngolu buchule. Ngaphaya koko, ayisebenzisi mandla aneleyo kwizinto zokuziqhekeza. Iimveliso zokugqibela zale nkqubo zomelele kwaye zinepolishi encomekayo. Ngomnyaka we-1797, inkqubo yokuqala ye-extrusion yenziwa. Umntu ogama linguJoseph Bramah uyenzile. I-extrusion inokuba shushu, ipholile, okanye ishushu. Kwiqondo lokushisa elingaphezulu kweqondo lokushisa lokuvuselela izinto, i-extrusion eshushu iyenzeka. I-extrusion efudumeleyo yenzeke ngaphezu kweqondo lobushushu begumbi kwaye ngaphantsi kweqondo lobushushu le-recrystallization, ngelixa i-extrusion ebandayo yenzeke kwiqondo lokushisa.