Mg-O-Si Chemical Bond Formation in Light Burned Magnesia and Fumed Silica Mixture During Mechanical Activation

  • Liugang ChenEmail author
  • G. Ye
  • A. Malfliet
  • J. Dijkmans
  • B. Sels
  • B. Blanpain
  • M. Guo
Review Papers


Mg-O-Si chemical bond formation in a light burned magnesia (MgO) and fumed silica (SiO2) mixture during mechanical activation was investigated by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), magic angle spinning nuclear magnetic resonance (MAS-NMR), and X-ray photoelectron spectroscopy (XPS). Crystallinity and intrinsic structure changes of the starting mixture during high-energy milling were examined by XRD. The formation of new Mg-O-Si chemical bonds of the ground mixture was illustrated by the incorporation of Mg2+ in Si-O-Si linkages, the appearance of new resonance in the 29Si NMR spectrum and the decrease of the Si 2p binding energy. The formation of Mg-O-Si chemical bonds created during grinding partly contributed to the lowered temperature of complete forsterite formation from 1400 to 1100°C.


mechanical activation chemical bond light burned magnesia fumed silica forsterite 


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© Springer Fachmedien Wiesbaden 2015

Authors and Affiliations

  • Liugang Chen
    • 1
    • 2
    Email author
  • G. Ye
    • 1
  • A. Malfliet
    • 2
  • J. Dijkmans
    • 3
  • B. Sels
    • 3
  • B. Blanpain
    • 2
  • M. Guo
    • 2
  1. 1.School of Materials Science and EngineeringZhengzhou UniversityZhengzhouChina
  2. 2.Department of Metallurgy and Materials Engineering (MTM)KU LeuvenLeuvenBelgium
  3. 3.Centre for Surface Chemistry and CatalysisKU LeuvenLeuvenBelgium

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