Kodi ubwino ndi kuipa kwa silicon carbide ndi chiyani poyerekeza ndi silicon nitride, aluminium oxide ndi zirconia?

Choyipa chachikulu chasilicon carbidendiye kuti ndizovuta sinter!
Silicon nitride ndiyokwera mtengo kwambiri!

The gawo kusintha ndi toughening zotsatira za zirconia ndi wosakhazikika ndipo nthawi zina ogwira. Vutoli likatha, osati zirconia zokha, gawo lonse la ceramic likhoza kukhala lopambana! .

Alumina ndiyofala kwambiri komanso yotsika mtengo, ndipo imakhala yabwino kukana kutentha.
Zirconia ili ndi kukana kovala bwino kuposa alumina komanso kutentha kwapamwamba, koma kukana kwake kwamphamvu kwamafuta ndikoyipa kuposa alumina.
Silicon nitride ili ndi zinthu zabwino zonse monga kukana kuvala komanso kukana kugwedezeka kwamafuta, koma kutentha kwake kumatsika kuposa ziwirizi. Zokwera mtengo kwambiri.
Alumina ceramics ndi zida zakale kwambiri za ceramic zomwe zimagwiritsidwa ntchito. Mtengo wotsika mtengo, magwiridwe antchito okhazikika komanso zinthu zosiyanasiyana. Msika ndiye aluminiyamu yayikulu komanso yayikulu, chifukwa chiyani? Fananizani awiri omalizawo ndipo mumvetsetsa.

Amafaniziridwa makamaka ndi ntchito ndi mtengo. Ndiye zimakhala zotsika mtengo kuchokera ku msika.
Pankhani ya mtengo, aluminiyamu ndiyotsika mtengo kwambiri, ndipo njira yokonzekera zopangira ufa ndiyokhwima kwambiri. Awiri otsirizawa ali ndi zovuta zoonekeratu pankhaniyi, yomwe ilinso imodzi mwazovuta zomwe zimalepheretsa kukula kwa awiriwo.
Pankhani ya magwiridwe antchito, zida zamakina monga mphamvu ndi kulimba kwa silicon nitride ndi zirconia ndizabwino kwambiri kuposa za alumina. Zikuwoneka kuti ntchito yamtengo wapatali ndiyoyenera, koma kwenikweni pali mavuto ambiri.
Kuchokera ku zirconia, imakhala yolimba kwambiri chifukwa cha kukhalapo kwa okhazikika, koma kulimba kwake kumakhala kovuta nthawi. Mwachitsanzo, chipangizo cha zirconia chikasiyidwa mumlengalenga kwa nthawi yayitali, chidzataya kukhazikika ndipo ntchitoyo idzagwetsa kwambiri kapena kusweka! !! !! Komanso, palibe gawo la metastable pa kutentha kwakukulu, kotero palibe kulimba kwakukulu. Choncho, kugwiritsa ntchito kutentha kwakukulu ndi kutentha kwa chipinda kumatha kulepheretsa kukula kwa zirconia. Ziyenera kunenedwa kuti ndi yaying'ono kwambiri pamisika itatu.
Ponena za silicon nitride, wakhalanso ceramic wotchuka m'zaka makumi awiri zapitazi, koma ndondomeko yake yokonzekera mankhwala ndi yovuta kwambiri kuposa alumina, yomwe ili yabwino kwambiri kuposa zirconia, koma sichili bwino ngati alumina.