(I-Alumina CeramicIkhiqizwe nguWintrustek)

I-Aluminaigama elivame kakhulu le-aluminium oxide (Al2O3). Kuyi-ceramic yobuchwepheshe ehlala isikhathi eside enenhlanganisela evelele yezimpawu zemishini nezikagesi. Ifaneleka ezinhlobonhlobo zezicelo zezimboni.

Izinzuzo ezibalulekile:

• Ukuqina okuphezulu kakhulu

• Izakhiwo ezinhle kakhulu ze-insulation

• Izinga lokushisa eliphezulu nokumelana nokugqwala

• Amandla amahle emishini

Inqubo Yokukhiqiza: Kusuka kuPowder kuya kuCeramic Eqinile

Ukukhiqiza ikhwalithi ephezuluumkhiqizo we-alumina ceramickuhilela izinguquko eziyinkimbinkimbi ngokomzimba namakhemikhali:

• Ukulungiswa Kwempushana: Impushana ye-alumina ixubene nezithasiselo (njengezinsiza zokuthambisa).

• Inqubo Yokwakha: Ukucindezela okomile, ukucindezela kwe-isostatic, ukubumba umjovo, noma ukubunjwa kwetheyiphu kuyakhethwa kuye ngesimo esidingekayo.

• I-Sintering:Izinto ezisetshenziswayo zishiswa esithandweni sokushisa esiphezulu ku-1600 ° C kuya ku-1800 ° C, okwenza izinhlayiya ze-powder zihlangane zibe isakhiwo se-crystalline esiminyene.

• Ukuqeda:Ngenxa yobulukhuni bayo obuphezulu kakhulu, ukuqeda ngemva kokucwilisa ngokuvamile kudinga ukusetshenziswa kwamathuluzi edayimane noma amasondo okugaya.

Lesi sihloko sigxile ezinqubweni zokwakheka ezimbalwa ezijwayelekile:

1. Dry Pressing

Lena indlela evame ukusetshenziswa kakhulu ekukhiqizweni kwezimboni, elungele ukukhiqizwa ngobuningi bobumo obulula (njengamashidi, izindandatho, namawasha).

Isimiso:Impushana equkethe isibopho ifakwa esikhunjeni sensimbi futhi ingaphansi kwengcindezi engaqondile noma emibili kusetshenziswa umshini wokunyathelisa.

Izinzuzo: Ukusebenza okulula, ukusebenza kahle okuphezulu, ubukhulu obunembile bomzimba obuluhlaza, kanye nokuncipha kwe-sintering okulawulwa kalula.

Imikhawulo:Kunzima ukwenza izingxenye ezimise okuyinkimbinkimbi; ngenxa yamandla aphikisanayo, ukuminyana kwezingxenye ezinkulu kungase kungalingani.

2. I-Isostatic Pressing

Ezingxenyeni ezisebenza kahle kakhulu ezidinga ukuminyana okuphezulu nokufana, ukucindezela kwe-isostatic kuyindlela ekhethwayo.

Isimiso: I-powder ivalwe ngesikhunta esinwebekayo (imvamisa isikhwama senjoloba) futhi ifakwe emkhunjini we-high-pressure, isebenzisa uketshezi njengendlela yokudlulisa ingcindezi.

Izinzuzo ezibalulekile: Ingcindezi isetshenziswa ngendlela efanayo kumpushana kuzo zonke izinkomba, okuholela ekutheni kube nokuminyana okungaguquki kakhulu kuwo wonke umzimba oluhlaza kanye nokuguquguquka okuncane ngemuva kokucwilisa.

Izicelo:Isetshenziswa kakhulu ekwenzeni amashubhu amakhulu e-ceramic, ama-sphere, noma ama-bearings e-ceramic anembile.

3. I-Tape Casting

Uma ubona ama-substrates e-ceramic azacile kakhulu (njengamabhodi wesekethe kumakhalekhukhwini), cishe akhiqizwa ngokusakazwa kwe-tape.

Isimiso:Impushana ixutshwa ne-solvent, i-disperant, kanye ne-binder ukuze kwakheke "i-slurry," bese isakazwa ebhandeni lokuthutha kusetshenziswa i-blade kadokotela ukwenza ifilimu elincanyana. Ifilimu bese yomiswa futhi ihlutshiwe.

Izinzuzo: Iyakwazi ukwenza amashidi e-ceramic azacile kakhulu anogqinsi phakathi kuka-10 μm no-1 mm.

Izicelo:Ama-substrates esekethe yefilimu ewugqinsi, i-multilayer ceramic capacitor (MLCC).

4. Ukubunjwa komjovo

Le nqubo, ebolekwe embonini yepulasitiki, isetshenziselwa ukwenza izingxenye ezinejometri eyinkimbinkimbi kakhulu.

Isimiso:Impushana ye-alumina ixutshwa nenani elikhulu le-organic binder (kufika ngaphezu kuka-40%), ishisiswe, futhi ijovwe esikhunjeni esinembayo, bese ipholiswa futhi iqiniswe.

Izinselelo:Inqubo "yokukhipha" (ukususa izinto eziphilayo) ngaphambi kokucwiliswa yinde kakhulu futhi ibucayi; ukuphatha okungalungile kungaholela kalula ekuqhekekeni.

Izicelo:Izingxenye zokunemba ze-Ceramic, izingxenye zedivayisi yezokwelapha.

5. I-Additive Manufacturing (Ukuphrinta kwe-3D)

Lobu ubuchwepheshe obusezingeni eliphezulu eminyakeni yamuva nje obuphula ngokuphelele imikhawulo ebekwe yisikhunta ekubunjweni.

Izindlela eziyinhloko zihlanganisa: I-Stereolithography (SLA) noma unamathisele i-extrusion.

Izinzuzo: Azikho isikhunta esidingekayo, okuyenza ifaneleke ukwenza ama-prototypes noma ukukhiqiza izinto zobumba ezinezakhiwo zangaphakathi eziyinkimbinkimbi kakhulu (njengamathambo e-biomimetic nama-microfluidic chips).