Strengthening alumina ceramic matrix nanocomposites using spark plasma sintering

Jow Lay Huang, Pramoda K. Nayak

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)

Abstract

The strengthening of Al 2 O 3 -Cr 2 O 3 /Cr 3 C 2 nanocomposites has been investigated using nano-indentation technique. These composites are fabricated by metal-organic chemical vapor deposition using Cr(CO) 6 as a precursor and Al 2 O 3 as the matrix followed by spark plasma sintering. 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, Al 2 O 3 -Cr 2 O 3 /Cr 3 C 2 nanocomposites have high hardness, fracture toughness, and facture strength due to strengthening by second phase Cr 3 C 2 particles and the solid solution of Al 2 O 3 -Cr 2 O 3 .

Original languageEnglish
Title of host publicationAdvances in Ceramic Matrix Composites
Subtitle of host publicationSecond Edition
PublisherElsevier Inc.
Pages231-247
Number of pages17
ISBN (Electronic)9780081021675
ISBN (Print)9780081021668
DOIs
Publication statusPublished - 2018 Jan 20

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Materials Science(all)

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    Huang, J. L., & Nayak, P. K. (2018). Strengthening alumina ceramic matrix nanocomposites using spark plasma sintering. In Advances in Ceramic Matrix Composites: Second Edition (pp. 231-247). Elsevier Inc.. https://doi.org/10.1016/B978-0-08-102166-8.00010-4