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Rate Controlled Sintering for Ceramics and Selected Powder Metals

  • Chapter
Science of Sintering

Abstract

After almost a quarter-century of research and development at NCSU, the process optimization method for densification of ceramics now known as Rate Controlled Sintering (RCS) has more-or-less ‘come of age’. For a wide range of ceramic materials, it has been found to provide an efficient and effective means for determining near-optimum (though typically non-linear) temperature-time pathways for densification. In doing so, it appears to beneficially influence and regulate the ‘path of morphological change,’ thereby facilitating refinement and control of final sintered micro­structures. More recently, it has also been found useful for the sintering of a special class of high-porosity metal compacts (e.g., those that have been formed by injection molding).

In this paper, the background and evolution of RCS concepts and experi­mental procedures are reviewed, and some recent examples of its applications for both ceramics and powdered metals are introduced to illustrate its versatility. Consideration is then given to certain unifying factors that are thought to enable RCS methods to operate effectively across such a diverse range of materials and conditions. Finally, possible extensions of RCS methodologies into other classes of materials, higher temperature regimes and/or hybrid process routes are evaluated and discussed.

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Author information

Authors and Affiliations

  1. Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC, 27695-7907, USA

    Hayne Palmour III

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  1. Hayne Palmour III
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Editors and Affiliations

  1. Serbian Academy of Sciences and Arts, Belgrade, Yugoslavia

    Dragan P. Uskoković

  2. North Carolina State University, Raleigh, North Carolina, USA

    Hayne Palmour III

  3. Alfred University, Alfred, New York, USA

    Richard M. Spriggs

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Palmour, H. (1989). Rate Controlled Sintering for Ceramics and Selected Powder Metals. In: Uskoković, D.P., Palmour, H., Spriggs, R.M. (eds) Science of Sintering. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-0933-6_29

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  • DOI: https://doi.org/10.1007/978-1-4899-0933-6_29

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4899-0935-0

  • Online ISBN: 978-1-4899-0933-6

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