Abacwaningi baseJapane basebenzisa amathuluzi edayimane e-polycrystalline ukusika izitsha zobumba ze-Al2O3 kanye ne-Si3N4 ceramics. Kutholwe ukuthi amathuluzi edayimane e-polycrystalline ama-coarse-grained ayenokugqoka okuncane ngesikhathi sokusika futhi umphumela wokucubungula wawumuhle. Lapho usika izitsha zobumba ze-ZrO2 ngamathuluzi edayimane, ifinyelele Umphumela ufana nalapho usika insimbi. Bahlola imikhawulo yokusika kwepulasitiki ye-ceramic. Ukujula okubalulekile kokusika kwezitsha zobumba ze-Al2O3 yi-apmax=2um, i-SiC ceramics apmax=1um, i-Si3N4 ceramics apmax=4um (ap>apmax, izinto zobumba zizokhiqiza ukwehluleka okuqinile; lapho ap
Isikhathi sokuthumela: Dec-17-2018