The interfacial characterization of oxidized SiC(p)/2014 A1 composites

Zhongliang Shi, J. M. Yang, J. C. Lee, Di Zhang, H. I. Lee, Renjie Wu

Research output: Contribution to journalArticle

91 Citations (Scopus)

Abstract

The passive oxidation behavior of SiC particles at elevated temperatures has been studied. The evolution of interfacial reaction products in 2014 aluminum alloy composite reinforced with oxidized-SiC particles after extended thermal exposure at elevated temperatures were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction. Although it could prevent the interfacial reaction between SiC particles and aluminum alloy, the preoxidation of SiC particles resulted in the formation of other interfacial reaction products. The results showed that at elevated temperatures nano-MgO formed initially on the surface of the oxidized SiC particles and then turned into nano-MgAl2O4 crystal due to the reaction between the SiO2 and aluminum alloy containing Mg. TEM observations indicated that the oxidized layer on SiC particles was uniform and had a good bonding with SiC and aluminum alloy.

Original languageEnglish
Pages (from-to)46-53
Number of pages8
JournalMaterials Science and Engineering A
Volume303
Issue number1-2
DOIs
Publication statusPublished - 2001 May 15
Externally publishedYes

Keywords

  • Aluminum matrix composite
  • Interface
  • Oxidation of SiC particles
  • SiC particles

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'The interfacial characterization of oxidized SiC<sub>(p)</sub>/2014 A1 composites'. Together they form a unique fingerprint.

  • Cite this