Strengthening alumina ceramic matrix nanocomposites using spark plasma sintering

J. L. Huang, P. K. Nayak

Research output: Chapter in Book/Report/Conference proceedingChapter

13 Citations (Scopus)


The strengthening of Al2O3-Cr2O3/Cr3C2 nanocomposites has been investigated using nano-indentation technique. These composites are fabricated by metal organic chemical vapor deposition (MOCVD) using Cr(CO)6 as a precursor and Al2O3 as the matrix followed by spark plasma sintering (SPS). The nanocomposites have a higher elastic modulus and are able to endure higher plastic deformation than monolithic alumina. The microstructures of the dislocation, transgranular and stepwise fracture surfaces are observed. Moreover, Al2O3-Cr2O3/Cr3C2 nanocomposites have high hardness, fracture toughness and facture strength due to strengthening by second phase Cr3C2 particles and the solid solution of Al2O3-Cr2O3.

Original languageEnglish
Title of host publicationAdvances in Ceramic Matrix Composites
PublisherElsevier Ltd
Number of pages17
ISBN (Print)9780857091208
Publication statusPublished - 2014 Feb

All Science Journal Classification (ASJC) codes

  • Materials Science(all)


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