2004•Ordnance Material Science and EngineeringRequires access
Pressureless and hot-pressing sintering of Ce-TZP/Al_2O_3 composite ceramics
Yang Gan
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Abstract
The microstructures and mechanical properties of Ce - TZP/Al_2O_3 ceramics prepared by pressureless and hot -
pressing sintering were investigated. It was shown that, the hot - pressed samples with a relative density of 98.6% reached
full densification at sintering temperature of 1400℃, holding time of 1h and pressure of 20MPa, this result was attributed to
the external pressure promoting and accelerating the process of densification, whereas the pressureless - sintered samples with
a relative density of 97.5% were fully densified at 1500℃, additionally, the mechanical properties of the hot - pressed
samples with fine grains were better than that of pressureless samples.