Transactions of the INDIAN CERAMIC SOCIETY Vol. 42 1983
Sintering of Zirconia with Various Stabilizers
P. Y. DALVI, A. K. KULKARNI AND S.V.K. RAO
Pages : 35-38
DOI : 10.1080/0371750X.1983.10822616
Abstract
Usefulness of pure zirconia as a refractory material becomes limited
due to phase transformation which results in volume changes. These
phase transfromations can be suppressed by various stabilizers.
It is observed that additions up to 5 wt% of various decomposable
and non-decomposable stabilizers like CaC08 MgC01, Y 20a and
CaF2 result in formation of cubic zirconia phase from 15 to 90%
between 1000° and 1200°C. However, the formation of cubic phase
more than 35%, seems to be affecting the sinterabllity. Properties
like densification, microstructure, cubic phase formed have been
studied with these stabilizers.
Data obtained reveals that nature of stabilizers and amount of
cubic phase ·formed are factors influencing the densification and
microstructure of resultant partially stabilized zirconia.
