Iibhola zeseramikhi zithathwe kwiipowder zeseramikhi eziphambili ezifana ne-alumina (Al₂O₃), i-zirconia (ZrO₂), i-silicon nitride (Si₃N₄), kunye ne-silicon carbide (SiC). Ezi zinto ziluhlaza, ezifunyenwe njengee-ultra-fine particles, zidlula kwiinkqubo ze-powder metallurgy: zidityaniswe nee-binders, zenziwa zibe zii-preforms ezingqukuva ngokucinezela nge-isostatic okanye ngokubumba nge-injection. Ii-preforms emva koko ziyasinwa kwi-1,400–2,200°C ukwenza izakhiwo ezixineneyo nezifanayo. Emva kokusinwa, ukugaywa ngokuchanekileyo kunye nokupolisha ziyaphucula ukuya kwinqanaba le-micron.
Iibhola zeseramikhi zibonelela ngezicelo ezahlukeneyo ngenxa yobunzima bazo obuphezulu kunye nokumelana nokugqwala. Kwiibheringi, zinciphisa ukungqubana koomatshini abakhawulezayo njengezithuthi zombane kunye needrili zamazinyo, nto leyo ephucula ukusebenza kakuhle. Kwiivalvu kunye neepompo, izinto ezifana ne-silicon nitride zimelana neekhemikhali ezinobungozi kwimizi-mveliso yeoyile kunye namayeza, ziqinisekisa ukuhlala ixesha elide. Kwimveliso ye-semiconductor, iibhola zeseramikhi ezingasebenzisi mafutha zicoca izinto ezinobuthathaka ngaphandle kokungcola. Zikwasebenza njenge-abrasive media ekupolisheni ngokuchanekileyo kwiindawo zeenqwelo-moya okanye ubucwebe, zibonelela ngokugqitywa okugudileyo.
Ixesha leposi: Meyi-29-2025
