Preparation of the System of MgO-CaO-SiO2-Al2O3-Y2O3 Wear-Resistant Alumina Ceramics
2014 ◽
Vol 941-944
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pp. 542-546
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Keyword(s):
X Ray
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In order to improve the wear resistance and reduce the sintering temperature of alumina ceramics, Y2O3powder added in the system of MgO-CaO-SiO2-Al2O3alumina ceramics were prepared by the technique of pressureless sintering. The properties of the ceramic samples were investigated by the measurements of bulk density, wear rate, X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results show that the wear rate of alumina ceramic contenting Y2O3 of the 0.8wt% is 0.041‰. Adding the yttrium oxide to the raw materials and then calcine them to ceramics, which can reduces the sintering temperature, promote the densification and improve wear-resistant property of alumina ceramics.
2011 ◽
Vol 399-401
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pp. 855-859
2014 ◽
Vol 1061-1062
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pp. 83-86
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Vol 335-336
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2012 ◽
Vol 512-515
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pp. 500-504
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