Effect of TiC addition on the mechanical behaviour of Al2O3–SiC whiskers composites obtained by SPS

Large Al2O3–SiCw and Al2O3–SiCw–TiC composites disks (150mm diameter) were prepared in this work by using the spark plasma sintering technique. The main physical and mechanical properties of these composites were measured in different disk zones in order to test out the homogeneity of the sintering...

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Bibliographic Details
Published inJournal of the European Ceramic Society Vol. 36; no. 8; pp. 2149 - 2152
Main Authors Gutiérrez-González, C.F., Suarez, M., Pozhidaev, S., Rivera, S., Peretyagin, P., Solís, W., Díaz, L.A., Fernandez, A., Torrecillas, R.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.07.2016
Subjects
Composites
Cutting tools
Mechanical properties
SPS
Mechanical properties
Cutting tools
Composites
SPS
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Summary:Large Al2O3–SiCw and Al2O3–SiCw–TiC composites disks (150mm diameter) were prepared in this work by using the spark plasma sintering technique. The main physical and mechanical properties of these composites were measured in different disk zones in order to test out the homogeneity of the sintering process. It has been found that the incorporation of TiC as reinforcing phase to the Al2O3–SiCw composite, improved densification, mechanical strength and hardness. This result was analyzed in terms of SEM microstructure observations showing that the presence of TiC inhibited the alumina grain growth.
ISSN:0955-2219
1873-619X
DOI:10.1016/j.jeurceramsoc.2016.01.050