Journal of Materials Science

, Volume 43, Issue 11, pp 3954–3959 | Cite as

Interface controlled active fracture modes in glass-ceramics

  • Panagiotis Kavouras
  • Thomas KehagiasEmail author
  • Philomela Komninou
  • Konstantinos Chrissafis
  • Constantine Charitidis
  • Theodoros Karakostas
Intergranular and Interphase Boundaries in Materials


The active fracture modes in glass-ceramics, produced by controlled crystallization from three starting vitreous products containing PbO and SiO2, were studied and compared. The goal was to examine the active fracture modes in PbO-rich glass-ceramic materials, where the main glass former was PbO, and compare these results with those reported in the literature, where the main glass former was SiO2. The influence of composition, shape and mean size of the ceramic phase on the active fracture modes of the glass-ceramics was also examined. It was observed that the microhardness and fracture toughness of the starting vitreous products decrease with increasing PbO content. Increase in the relative amount of SiO2 resulted in a decrease of the percentage of the ceramic phase. Glass-ceramics with higher PbO content showed typical behaviour of high toughness material, i.e. intergranular fracture mode, with lower microhardness value. Glass-ceramics with lower PbO content showed typical behaviour of high-strength material, i.e. transgranular fracture mode, with higher microhardness value.


Fracture Toughness Fracture Mode Batch Composition Crack Propagation Mode Vickers Diamond Indenter 



This work was co-funded by the European Social Fund and National resources, through the “PYTHAGORAS II” program.


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Panagiotis Kavouras
    • 1
  • Thomas Kehagias
    • 1
    Email author
  • Philomela Komninou
    • 1
  • Konstantinos Chrissafis
    • 1
  • Constantine Charitidis
    • 2
  • Theodoros Karakostas
    • 1
  1. 1.Department of PhysicsAristotle University of ThessalonikiThessalonikiGreece
  2. 2.School of Chemical EngineeringNational Technical University of AthensAthensGreece

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