Journal of Materials Science

, Volume 42, Issue 16, pp 6798–6802 | Cite as

Mechanical properties and microstructure of Al2O3/mullite composite

  • F. C. Zhang
  • H. H. LuoEmail author
  • S. G. Roberts


An Al2O3/5 vol.% mullite composite was synthesized by using reaction sintering of Al2O3/0.78 wt.% SiC at 1,600 °C for 2 h in air. The phase analysis of the Al2O3/mullite composite was carried out using X-ray diffraction (XRD). There were two kinds of mullite in alumina/mullite composite, namely, 3Al2O3·2SiO2 and Al5.65Si0.35O9.175. The microstructure of the Al2O3/mullite composite was investigated using scanning electron microscope (SEM) and transmission electron microscope (TEM). The mechanical properties such as Young’s modulus, Poisson’s ratio, hardness, toughness and strength of the Al2O3/mullite composite were investigated. The influence of mullite on the composite is discussed.


Fracture Toughness Flexural Strength Reaction Sinter Al2O3 Powder Quantitative Phase Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The authors wish to thank Dr. Richard Todd for his helpful discussions, and his invaluable expertise in this field was greatly appreciated. The work is supported by Personnel Department of Hebei Province.


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.State Key Laboratory of Metastable Materials Science and TechnologyYanshan UniversityQinhuangdaoP.R. China
  2. 2.Department of MaterialsUniversity of OxfordOxfordUK

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