Iiseramikhi ze-alumina zisetyenziswa kakhulu kwiindawo ezininzi ngenxa yeenzuzo zazo ezifana nokuqina okuphezulu kunye nokuqina kweekhemikhali. Nangona kunjalo, ukubuthathaka kwazo kunciphisa uluhlu lwazo lokusetyenziswa. Iiseramikhi ze-alumina eziqinileyo zavela kwaye zasombulula ngempumelelo le ngxaki.
Iiseramikhi ze-alumina eziqinileyoinokuqina ngeendlela ezahlukeneyo. Eziqhelekileyo ziquka ukuqina kwe-zirconia, okuphucula kakhulu ukuqina ngokongeza i-ZrO₂ kwi-alumina kunye nokusebenzisa utshintsho lwesigaba kunye nezinye iindlela; ukuqina kwe-whisker kunye ne-fiber, ukongeza i-SiC, i-Si₃N₄ whiskers okanye i-C, i-SiC fibers ukwandisa imijelo yokusasazeka kwee-crack kunye nokusebenzisa amandla okuqhekeka; ukuqina kwe-particle kukongeza amasuntswana e-modulus aphezulu anjenge-SiC kunye ne-TiC ukuze kuphambukiswe kwaye kuqhekeke ii-cracks.
Amandla okugoba kunye namandla okuchukumisa kweeseramikhi ze-alumina eziqinileyo aphuculwe kakhulu. Umzekelo, amandla okugoba kweeseramikhi ze-alumina eziqinileyo ze-zirconia anokufikelela kwi-480MPa, kwaye amandla okuchukumisa yi-7MPam1/2.
Ngokwendlela esetyenziswa ngayo, kwicandelo lezonyango, isetyenziselwa ukwenza izifakelo zamazinyo kunye namalungu okwenziwa ngenxa yokuba ihambelana kakuhle ne-biocompatibility kunye nobunzima obuphezulu, nto leyo enokunciphisa iingxaki; kwicandelo le-semiconductor, njengesiseko sokupakisha isixhobo, isetyenziswa kwi-IGBTs zezithuthi zombane, njl. ngenxa yokusasaza kwayo ubushushu okugqwesileyo, ubushushu kunye namandla oomatshini; kwizixhobo zokusika, inokuhlala izinzile kumaqondo obushushu aphezulu kwaye ikwazi ukusebenza ngentsimbi ephosiweyo kunye nee-alloys. Ii-ceramics ze-alumina eziqinileyo ziyakhanya kwiindawo ezininzi ngenxa yokusebenza kwazo okugqwesileyo. Ii-ceramics zeChemshun zibonelela ngee-ceramics ze-alumina eziqinileyo ezinokumelana nokukrala kwesidlo sangokuhlwa kunye nokumelana nempembelelo kwinkqubo yokuphatha izinto ezininzi.
Ixesha leposi: Feb-28-2025