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 ntxhib-grained polycrystalline pob zeb diamond tau hnav tsawg dua thaum lub sijhawm txiav thiab kev ua haujlwm tau zoo. Thaum txiav ZrO2 ceramics nrog cov cuab yeej pob zeb diamond, nws mus txog Cov nyhuv zoo ib yam li thaum txiav hlau. Lawv tshawb xyuas qhov txwv ntawm cov yas yas txiav. Qhov tseem ceeb ntawm kev txiav qhov tob ntawm Al2O3 ceramics yog apmax = 2um, SiC ceramics apmax = 1um, Si3N4 ceramics apmax = 4um (ap> apmax, ceramics yuav ua rau nkig tsis ua haujlwm; thaum ap.
Post lub sij hawm: Dec-17-2018