Journal of Materials Science

, Volume 41, Issue 21, pp 7088–7095 | Cite as

Processing, crystallization and characterization of polymer derived nano-crystalline Si–B–C–N ceramics

  • Ravi KumarEmail author
  • Y. Cai
  • P. Gerstel
  • G. Rixecker
  • F. Aldinger


Si–B–C–N ceramics were synthesized from boron modified poly(vinyl)silazanes with the chemical formula (B[C2H4–Si(CH3)NH]3)n. The originally amorphous materials are crystallized at temperatures in the order of 1,800–1,900 °C, which results microstructures with grain sizes significantly below 100 nm. Several parameters of the heat treatment, including temperature, holding time and atmosphere, affect the resulting nanostructures. This and the chemical and phase composition were studied via X-ray diffraction (XRD), transmission electron microscopy (TEM), electron spectroscopic imaging (ESI) and spectrochemical analysis in order to gain an understanding of the mechanisms, which control the crystallization behavior. Ceramic samples were also produced using different particle sizes of the precursor polymer in order to quantify the effect of the varying specific surface on the crystallization behavior.


Thermolysis Crystallization Behavior Polymer Particle SMe2 Silicon Carbonitrides 



The authors would like to acknowledge the technical support obtained for carrying out EFTEM and XRD from Ms. Ulrike Eigenthaler and Ms. Martina Thomas, respectively. The authors would also like to thank Dr. Anita Müller for fruitful scientific discussion.


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Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • Ravi Kumar
    • 1
    Email author
  • Y. Cai
    • 1
    • 2
  • P. Gerstel
    • 1
  • G. Rixecker
    • 1
  • F. Aldinger
    • 1
  1. 1.Max-Planck Institut für Metallforschung and Institut für Nichtmetallische Anorganische MaterialienUniversität Stuttgart, Pulvermetallurgisches LaboratoriumStuttgartGermany
  2. 2.Department of Materials Science and EngineeringGeorgia Institute of TechnologyAtlantaUSA

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