Transactions of the INDIAN CERAMIC SOCIETY Vol. 59 2000
Densification of AI203-Cr 20 3 Compacts
at High Temperatures
Jagdish Prasad, G. N. Agrawal and K. C. Chatterjee
Pages : 29-32
DOI : 10.1080/0371750X.2000.10799903
Abstract
Sintering behaviour of various AI20 3-Cr20 3 compacts made out
of calcined alumina fines and chromic oxide, upto a temperature
of 17oo•c and 4 h soaking time was investigated. The amount of
chromic oxide was found to have an appreciable impact on
densification, rate constants, activation energy, diametrical
tensile strengths and microstructures. A maximum density of
3.452 g.cm·3 and a maximum shrinkage of 15.67% were attained
with the compacts having 2 wt% Cr20 3 when sintered at 17oo•c
for 4 h. It has been found that with the increase in Cr 20 3 content,
the porosity of the compact increases.
