Abstract
Silicon carbide (SiC) and titanium diboride (TiB2) namely as super high-temperature structure materials offer the excellent property of good mechanical properties with high melting point, high thermal stability and good chemical stability towards both acids and bases. However, the use of monolithic SiC and TiB2 is limited by poor sinter ability and low fracture toughness. Some research works showed that the composites of SiC-TiB2 had better mechanical properties than monolithic ceramic. In this study, Silicon carbide – titanium diboride (SiC-TiB2) composite had been prepared by hot-pressure sintering with Al2O3-Y2O3 as sintering additives under relatively lower temperature. The sintering behaviors, mechanical properties and electrical conductivity with different TiB2 content were researched. The results showed that the density of sintered could achieve 97% theoretical in 1900°C, new phase (YAG) had been formed during sintering. With the increasing of TiB2 content, the bending strength and fructure toghness of composites increaed, while the Electrical resistivity dreased.
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Yuhong, C., Wenzhou, S., Laner, W., Liang, J. (2013). Preparing SiC-TiB2 Composite via Liquid Phase Sintering. In: Marquis, F. (eds) Proceedings of the 8th Pacific Rim International Congress on Advanced Materials and Processing. Springer, Cham. https://doi.org/10.1007/978-3-319-48764-9_55
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DOI: https://doi.org/10.1007/978-3-319-48764-9_55
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48586-7
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