Affordable Access

Publisher Website

Use of Vickers indentation method for evaluation of fracture toughness of phase-separated glasses

Journal of Non-Crystalline Solids
Publication Date
DOI: 10.1016/0022-3093(80)90450-0
  • Physics


Abstract An attempt was made to use indentation approach to determine the fracture toughness of phase-separated glasses having particulate microstructure. The samples selected for study were lead borate glasses whose composition lies in the immiscible region of the PbOB 2O 3 system. Indentation fracture experiments were performed on the polished surface of the specimens using a Vickers microhardness tester. The extent of surface traces of well-developed half-penny-like cracks growing from the corners of Vickers indents were measured. Fracture toughness values were then evaluated based upon the established indentation fracture mechanics. These values were compared with fracture toughness data obtained for the same glasses by the conventional three-point bending technique. It was found that Vickers indentation testing can be an efficient method for fracture toughness evaluation of opaque two-phase glasses.

There are no comments yet on this publication. Be the first to share your thoughts.


Seen <100 times

More articles like this

Evaluation by Vickers indentation of fracture toug...

on Journal of Materials Science M... July 1999

Estimation of fracture toughness of nitride compou...

on Surface and Coatings Technolog... Jan 01, 2006

Fracture toughness evaluation of 3Cr-1Mo steel fro...

on Procedia Engineering Jan 01, 2011

An expression to determine the Vickers indentation...

on Surface and Coatings Technolog... Jan 25, 2013
More articles like this..