Article ID Journal Published Year Pages File Type
1499869 Scripta Materialia 2011 4 Pages PDF
Abstract

We established a theoretical model to investigate intragranular particle microstress strengthening of Al2O3/SiC nanocomposites. Using this model, we calculated the average compressive microstresses on the Al2O3 grain boundaries caused the existence of the intragranular SiC particles. The average compressive microstresses increase almost linearly with SiC content, and reach 147 MPa for the nanocomposite with 10 vol.% SiC. The model gives a reasonable explanation for the remarkable strength increase.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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