The fabrication processing of CaO stabilized ZrO2 refractory was investigated by studying the effects of processing parameters such as forming pressure and sintering temperature on the properties of the obained samples,It was found that the bulk density of CaO-ZrO2 refractory could attain 4.78g/cm^3,equivalent to about 85% of theoretical density,when sintering process was carried out at 1780℃ two hours.The flexural strength at room and elevated temperatures(1200℃) was measured,and could reach 53 MPa and 39 MPa respetively,exhibiting a good strength retention to high temerature.The,SEM microguraphs on the fracture surface suggested that the materials fractured along the grain boundaries as wel as through the grais.For comparsion,the relevant data of one Vesuvius CaO-ZrO2 product(Vesuvius Corporation,U.S.A) were also presented.
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