| Evaluation of Mechanical Properties of Sintered
Zirconia Toughened Alumina Ceramics |
s. CHATTERJEE, D. BASU, R. DAS AND s. K. GUHA
Pages : 68-72
DOI : 10.1080/0371750X.1989.10822949 |
| Abstract |
| The effect of incorporating yttria stabilized zirconia on fracture
toughness and other related mechanical properties of high alumina
ceramics was studied. The experiments were so designed as to allow
study of the effect of sintering at various temperatures with different
periods of soaking on some of the properties. It was shown that the
transverse rupture strength and fracture toughness were largely dependent
on the percentage and crystalline phases of Zr02 present and
also on the sintering temperature.
The properties studied included porosity, density, fired shrinkage,
microhardness, transverse rupture strength and fracture toughness.
SEM was deployed for characterization of the resulting microstructure.
An attempt was made towards characterization of the resulting
phases due to supposedly two different mechanisms. |
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