Kuyerekeza kwa katundu wa zoumba za silicon carbide ndi zoumba za alumina

Sic ceramics sikuti imangokhala ndi makhalidwe abwino kwambiri a makina kutentha kwa chipinda, monga mphamvu yopindika kwambiri, kukana kwa okosijeni bwino, kukana dzimbiri bwino, kukana kuvala kwambiri komanso kukana kotsika, komanso ili ndi makhalidwe abwino kwambiri a makina kutentha kwambiri (mphamvu, kukana kukwawa, ndi zina zotero) pakati pa zipangizo zodziwika bwino za ceramic. Sintering yotenthetsera, sintering yosakanikiza, zinthu zotenthetsera zotenthetsera, khalidwe lalikulu la silicon carbide ndi mphamvu yotentha kwambiri, zinthu wamba za ceramic pa 1200 ~ 1400 digiri Celsius mphamvu idzachepetsedwa kwambiri, ndipo silicon carbide pa 1400 digiri Celsius mphamvu yopindika imasungidwabe pamlingo wapamwamba wa 500 ~ 600MPa, kotero kutentha kogwira ntchito kumatha kufika madigiri 1600 Celsius; Kapangidwe ka mbale ya Silicon carbide ndi kolimba komanso kofooka, coefficient yowonjezera ndi yaying'ono, kukana kozizira komanso kotentha, kosavuta kusintha. Silicon carbide ndi yocheperako, kotero zigawo za ceramic zopangidwa ndi silicon carbide ndizopepuka kwambiri.

Alumina ceramic ndi mtundu wa alumina (Al2O3) monga thupi lalikulu la zinthu za ceramic, zomwe zimagwiritsidwa ntchito m'mabwalo okhuthala a filimu. Ma ceramic a Alumina ali ndi mphamvu yabwino yoyendetsera zinthu, mphamvu yamakina komanso kukana kutentha kwambiri. Tiyenera kudziwa kuti kutsuka kwa ultrasonic ndikofunikira. Kukana kwake kutopa ndi kuwirikiza nthawi 266 kuposa chitsulo cha manganese ndi kuwirikiza nthawi 171.5 kuposa chitsulo cha chromium. Alumina ceramic ndi mtundu wa zinthu zapamwamba kwambiri zotetezera kutentha, zomwe nthawi zambiri zimagwiritsidwa ntchito popanga pepala lotetezera kutentha la ceramic, mphete yotetezera kutentha ndi zina. Ma ceramic a Alumina amatha kupirira kutentha kwambiri mpaka 1750℃ (zochuluka za alumina zoposa 99%).