(Alumina CeramicE hlahisoa keWintrustek)
Aluminake lebitso le hlahang khafetsa bakeng sa aluminium oxide (Al2O3). Ke ceramic e tšoarellang ea tekheniki e nang le motsoako o ikhethang oa litšobotsi tsa mochini le tsa motlakase. E loketse mefuta e fapaneng ea likopo tsa indasteri.
Melemo ea mantlha:
Boima bo phahameng haholo
Lits'ebetso tse ntle tsa insulation
Mocheso o phahameng le ho hanyetsa kutu
Matla a matle a mochini
Mokhoa oa Tlhahiso: Ho tloha ho Phofo ho ea ho Ceramic e thata
Ho etsa thepa ea boleng bo holimosehlahisoa sa alumina ceramice kenyelletsa liphetoho tse rarahaneng 'meleng le lik'hemik'hale:
Tokiso ea phofo: Alumina phofo e kopantsoe le li-additives (tse kang lithuso tsa sintering).
Mokhoa oa ho theha: Ho tobetsa ka mokhoa o omileng, ho tobetsa ka isostatic, ho bopa ente, kapa ho etsa tepi ho khethoa ho latela sebopeho se hlokahalang.
Sintering:Thepa e chesoa ka sebōping sa mocheso o phahameng oa 1600 ° C ho 1800 ° C, e leng se etsang hore likaroloana tsa phofo li kopane ka har'a mohaho o teteaneng oa kristale.
Qetella:Ka lebaka la boima ba eona bo phahameng haholo, ho qeta ka mor'a ho sila hangata ho hloka tšebeliso ea lisebelisoa tsa daemane kapa mabili a sila.
Sengoliloeng sena se shebana le mekhoa e mengata ea mantlha ea ho theha:
1. Dry Pressing
Ena ke mokhoa o sebelisoang ka ho fetisisa tlhahiso ea indasteri, haholo-holo e loketseng tlhahiso ea bongata ba libopeho tse bonolo (joaloka maqephe, mehele le li-washer).
Molao-motheo:Phofo e nang le binder e kenngoa ka har'a hlobo ea tšepe 'me e be tlas'a khatello e sa lekanyetsoang kapa ea mahlakore a mabeli ka mochine oa khatiso.
Melemo: Ts'ebetso e bonolo, ts'ebetso e phahameng, litekanyo tse nepahetseng tsa 'mele o motala, le shrinkage ea sintering e laolehang habonolo.
Meeli:Ho thata ho etsa likarolo tsa sebopeho se rarahaneng; ka lebaka la matla a khohlano, ho teteana ha likarolo tse kholo ho ka 'na ha se ke ha lekana.
2. Isostatic Pressing
Bakeng sa likarolo tse phahameng tsa ts'ebetso tse hlokang ho tenyetseha ho phahameng le ho ts'oana, ho hatella isostatic ke mokhoa o ratoang.
Molao-motheo: Phofo e tiisitsoe ka sebopeho sa elastic (hangata mokotla oa rabara) ebe o kenngoa ka har'a sekepe se nang le khatello e phahameng, ho sebelisoa mokelikeli e le mochine o fetisang khatello.
Melemo ea mantlha: Khatello e sebelisoa ka mokhoa o ts'oanang ho phofo ho tloha ka mahlakoreng 'ohle, e leng se etsang hore ho be le letsoalo le tsitsitseng haholo ho pholletsa le' mele o motala le deformation e fokolang ka mor'a ho sintering.
Lisebelisoa:Hangata e sebelisoa ha ho etsoa li-tubes tse kholo tsa ceramic, li-sphere, kapa li-bearings tsa ceramic tse nepahetseng.
3. Tape Casting
Haeba u bona li-substrates tsa ceramic tse tšesaane haholo (tse kang liboto tsa potoloho ka lifono tsa cellular), li ka 'na tsa hlahisoa ke ho lahla theipi.
Molao-motheo:Powder e tsoakoa le solvent, dispersant, le binder ho etsa "slurry," e ntan'o aloa holim'a lebanta la conveyor ho sebelisoa lehare la ngaka ho etsa filimi e tšesaane. Ka mor'a moo, filimi e omisitsoe ebe e ebola.
Melemo: E khona ho etsa lishiti tsa ceramic tse tšesaane haholo tse nang le botenya bo pakeng tsa 10 μm le 1 mm.
Lisebelisoa:Li-circuits tsa potoloho ea lifilimi tse teteaneng, li-multilayer ceramic capacitors (MLCC).
4. Ente Molding
Mokhoa ona, o alimiloeng indastering ea polasetiki, o sebelisoa ho etsa likarolo tse nang le li-geometri tse rarahaneng haholo.
Molao-motheo:Alumina phofo e tsoakoa le palo e kholo ea organic binder (ho fihlela ho 40%), e futhumetse, 'me e kenngoa ka har'a hlobo e nepahetseng, ebe e pholile ebe e tiisa.
Mathata:Ts'ebetso ea "debinding" (ho tlosa lintho tse phelang) pele ho sintering e telele haholo ebile e bohlokoa; ho tšoara ka tsela e sa lokelang ho ka lebisa ho pepeneng habonolo.
Lisebelisoa:Likarolo tse nepahetseng tsa ceramic, lisebelisoa tsa lisebelisoa tsa bongaka.
5. Keketseho ea Tlhahiso (3D Printing)
Ena ke theknoloji ea morao-rao lilemong tsa morao tjena e senyang ka ho feletseng meeli e behiloeng ke hlobo ka sebōpeho.
Mekhoa ea mantlha e kenyelletsa: Stereolithography (SLA) kapa peista extrusion.
Melemo: Ha ho na hlobo e hlokahalang, e leng se etsang hore e tšoanelehe bakeng sa ho etsa li-prototypes kapa ho etsa lirafshoa tse nang le likarolo tse ka hare tse rarahaneng ka ho fetisisa (tse kang li-biomimetic skeletons le microfluidic chips).
