A critique of master sintering curve analysis

Frueh T., Ozer I. O., Poterala S. F., Lee H., Kupp E. R., Compson C., ...More

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, vol.38, no.4, pp.1030-1037, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 4
  • Publication Date: 2018
  • Doi Number: 10.1016/j.jeurceramsoc.2017.12.025
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1030-1037
  • Keywords: Master sintering curve (MSC), Sintering, Alumina, CERAMICS, DECOMPOSITION, MODEL
  • Anadolu University Affiliated: No


In this work, we explore factors affecting the accuracy of the master sintering curve (MSC) approach for analyzing the complete sintering profile of ceramic powders. We show that the instantaneous anisotropic shrinkage must be accounted for to develop an accurate MSC. The MSC diverges at >90% density because of basic assumptions that oversimplify the analysis of the densification process. We also show that powder chemistry and forming techniques can affect the fitting parameter Q.Q should not be interpreted as the sintering activation energy, or used to interpret mechanistic differences since it is comprised of several mechanisms that influence densification throughout the sintering cycle. Despite these limitations, the MSC is a useful and practical tool for predicting thermal load (i.e. time and temperature) effects on the densification of a ceramic part fabricated from a singular powder that is fabricated by a singular forming process.