Fracture toughness of zirconia Nanoparticle-filled dental composites

K. S. Chan, D. P. Nicolella, B. R. Furman, S. T. Wellinghoff, Henry R Rawls, S. E. Pratsinis

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The fracture toughness of dental composites containing zirconia nanoparticles dispersed in a bisphenol A glycol dimethacrylate-based monomer blend (GTE) was studied for several yttria contents. Three-point bend test bars with and without a notch were tested at ambient temperature to determine elastic modulus, flexure strength, and fracture toughness. The ZrO2 nanoparticles increased the fracture toughness of the nanocomposites compared to previous results for the matrix and Schott glass-filled nanocomposites. X-ray diffraction analyses revealed mostly tetragonal ZrO2 in the nanocomposites before and after testing, in agreement with a theoretical analysis. The enhancement in fracture toughness in ZrO2-filled nanocomposites was caused mainly by the higher values of particle toughness and interface toughness in GTE/ZrO2 compared to those of GTE/Schott glass nanocomposites.

Original languageEnglish (US)
Pages (from-to)6117-6124
Number of pages8
JournalJournal of Materials Science
Volume44
Issue number22
DOIs
StatePublished - Nov 2009

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Dental composites
Zirconia
Fracture toughness
Nanocomposites
Nanoparticles
Toughness
Glass
Glycols
Yttrium oxide
Monomers
Elastic moduli
zirconium oxide
X ray diffraction
Testing

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Chan, K. S., Nicolella, D. P., Furman, B. R., Wellinghoff, S. T., Rawls, H. R., & Pratsinis, S. E. (2009). Fracture toughness of zirconia Nanoparticle-filled dental composites. Journal of Materials Science, 44(22), 6117-6124. https://doi.org/10.1007/s10853-009-3846-4

Fracture toughness of zirconia Nanoparticle-filled dental composites. / Chan, K. S.; Nicolella, D. P.; Furman, B. R.; Wellinghoff, S. T.; Rawls, Henry R; Pratsinis, S. E.

In: Journal of Materials Science, Vol. 44, No. 22, 11.2009, p. 6117-6124.

Research output: Contribution to journalArticle

Chan, KS, Nicolella, DP, Furman, BR, Wellinghoff, ST, Rawls, HR & Pratsinis, SE 2009, 'Fracture toughness of zirconia Nanoparticle-filled dental composites', Journal of Materials Science, vol. 44, no. 22, pp. 6117-6124. https://doi.org/10.1007/s10853-009-3846-4
Chan, K. S. ; Nicolella, D. P. ; Furman, B. R. ; Wellinghoff, S. T. ; Rawls, Henry R ; Pratsinis, S. E. / Fracture toughness of zirconia Nanoparticle-filled dental composites. In: Journal of Materials Science. 2009 ; Vol. 44, No. 22. pp. 6117-6124.
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