Skip to main content
SpringerLink
Log in

Microanalytical investigation of sintered SiC

Part 1 Bulk material and inclusions

  • Papers
  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

The microstructures and compositions of Al- and B-doped pressureless sintered SiC-materials from four different sources were investigated by the combined usage of several microanalytical techniques. Besides the fundamental ceramography and chemical analysis the methods of Auger electron spectroscopy (AES), wavelength dispersive analysis of X-rays (WDX), microautoradiography and scanning transmission electron microscopy (STEM) were used. In transgranular fractured surface regions the stoichiometric Si/C relation was found by AES. The grain boundaries, however, are enriched with C and O, and also partly with B and Al. Additives and impurities are distributed in an inhomogeneous manner; the heterogeneous inclusions are very differently sized from less than 0.1μm (STEM) to 10 to 20μm (WDX on polished specimens) and 200μm (AES on fracture surfaces). These results reveal the need for improving the production process.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. S. Prochazka, “Ceramics for high performance applications”, edited by J. J. Burkeet al. (Brook Hill, Chestnut Hill, 1974) p. 239.

  2. H. Hausner, “Energy and Ceramics”, edited by P. Vincenzini (Elsevier, Amsterdam, New York, Oxford, 1980) p. 582.

    Google Scholar 

  3. K. A. Schwetz andA. Lipp,Sci. Ceram. 10 (1980) 149.

    Google Scholar 

  4. S. Prochazka, “Mass Transport Phenomena in Ceramics”, edited by A. R. Cooper and A. H. Heuer, Material Science Research, Vol. 9 (Plenum Press, New York 1975) p. 421.

    Google Scholar 

  5. F. F. Lange andT. K. Gupta,J. Amer. Ceram. Soc. 59 (1976) 537.

    Google Scholar 

  6. W. Böcker andH. Hausner,Powder Met. Int. 10 (1978) 87.

    Google Scholar 

  7. G. Grathwohl, Th. Reetz andF. Thümmler,Sci. Ceram. 11 (1981).

  8. R. Hamminger, Diploma thesis, University of Karlsruhe (1980).

  9. Y. Tajima andW. D. Kingery, in “Basic research in crystalline and noncrystalline ceramic systems”. Department of Materials Science and Engineering Ceramics Division, Massachusetts Institute of Technology, Cambridge, Mass. Annual Report, 1 August 1980 to 31 October 1981, p. 31.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institut für Werkstoffkunde II, Universität Karlsruhe, Kernforschungszentrum Karlsruhe, Karlsruhe 1, West Germany

    R. Hamminger, G. Grathwohl & F. Thümmler

  2. Institut für Material- und Festkörperforschung, Postfach 3640, D-7500, Karlsruhe 1, West Germany

    R. Hamminger, G. Grathwohl & F. Thümmler

Authors
  1. R. Hamminger
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. G. Grathwohl
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. F. Thümmler
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hamminger, R., Grathwohl, G. & Thümmler, F. Microanalytical investigation of sintered SiC. J Mater Sci 18, 353–364 (1983). https://doi.org/10.1007/BF00560623

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00560623

Keywords

Search

Navigation