Mechanical properties of alumina-glass dental composites

Q. Zhu, G. De With, L. J.M.G. Dortmans, F. Feenstra

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)


A near net-shape process was developed for fabricating all ceramic dental restorations. Preforms from uniaxially pressing, Robocasting (RB) and 3-dimensional printing (3DP) processes were employed to implement the process. All these preforms can be well infiltrated by a model glass. Investigations on sintering effects showed that the shrinkage and the green density of preforms increase while the relative density of infiltrated composites decreases with increasing presintering temperature. Composites from pressed preforms exhibit an average fracture strength of ∼340 MPa regardless the presintering temperature, while a strength of 287 MPa was recorded for composites from RB preforms. Subcritical crack growth (SCO) behavior of the composite was characterized by the dynamic fatigue test, and the SCO exponent n was determined to be 20.

Original languageEnglish
Title of host publicationProceedings the 7th conference and exhibition of the European Ceramic Society, Brugge, Belgium, September 9 - 13, 2001, seventh ECerS / EURO Ceramics VII.
Place of PublicationUetikon-Zürich
PublisherTrans Tech Publications
Number of pages4
Publication statusPublished - 1 Dec 2001
Event7th Conference and Exhibition of the European Ceramic Society (ECerS 2001), September 9-13, 2001, Brugge, Belgium - Brugge, Belgium
Duration: 9 Sep 200113 Sep 2001

Publication series

NameKey Engineering Materials
ISSN (Print)1013-9826


Conference7th Conference and Exhibition of the European Ceramic Society (ECerS 2001), September 9-13, 2001, Brugge, Belgium
Abbreviated titleECerS 2001


  • AlO-glass composite
  • Infiltration
  • Mechanical properties
  • Subcritical crack growth


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