Cov kws tshawb fawb Nyij Pooj tau siv cov cuab yeej pob zeb diamond polycrystalline los txiav Al2O3 ceramics thiab Si3N4 ceramics. Nws tau pom tias cov cuab yeej pob zeb diamond polycrystalline coarse-grained muaj tsawg dua hnav thaum lub sijhawm txiav thiab cov txiaj ntsig ua tiav zoo. Thaum txiav ZrO2 ceramics nrog cov cuab yeej pob zeb diamond, nws tau mus txog Qhov cuam tshuam zoo ib yam li thaum txiav hlau. Lawv tau tshawb nrhiav cov kev txwv ntawm kev txiav yas ceramic. Qhov tob txiav tseem ceeb ntawm Al2O3 ceramics yog apmax = 2um, SiC ceramics apmax = 1um, Si3N4 ceramics apmax = 4um (ap> apmax, cov ntaub ntawv ceramic yuav tsim kev ua tsis tiav; thaum ap
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-17-2018