Journal of Applied Science and Engineering

Published by Tamkang University Press


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Marin Petrovic This email address is being protected from spambots. You need JavaScript enabled to view it.1 and Elmedin Mesic1

1University of Sarajevo, Mechanical Engineering Faculty, Vilsonovo setaliste 9, 71000 Sarajevo, Bosnia and Herzegovina


Received: October 20, 2019
Accepted: March 3, 2020
Publication Date: June 1, 2020

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This article has been retracted at the request of the Editor-in-chief.

After a thorough investigation, the Editor has decided to retract this manuscript due to double submission.



Polycrystalline advanced ceramics are synthetic products produced by sintering together selected ceramics grains in a metal matrix serving as a binder. In order to be able to propose their optimisation, achieving high performance cutting and leading to reduced operating costs and improved working environment, relevant fracture mechanisms involved in their failure need to be determined. In this work, experimental results of plane strain fracture toughness obtained earlier on single-edge-V-notched-beam specimens were supported with microscopy analysis. These findings establish a clear connection between the fracture toughness results and the fracture mechanisms visible on and beneath the fracture surfaces, revealing adiabatic conditions that occur at the crack tip during fracture.

Keywords: Brittle fracture, Fracture mechanics, Impact fracture, Scanning electron microscopy, Toughness testing



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