초록 |
Composition effects on mechanical properties of alumina ceramics for plasma reactor was studied, and then the thermal shock behaviour of sintered alumina with 5, 10wt.% of petalite was also studied. The thermal shock testing was carried out by means of quenching into water from high temperatures (ΔT in the range 0-400℃). In result, advanced mechanical properties of alumina ceramics obtained when alumina base ceramic matrix composite containing 2wt.% of CaO, 4wt.% of MgO, 2wt.% of SiO2 and sintering temperature at 1350℃. The thermal shock resistance of alumina base ceramic matrix composite containing petalite showed higher values than monolithic alumina. |