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Micro pop-in issues in nanoindentation behaviour of 10 ZTA ceramics

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Micro pop-in issues in nanoindentation behaviour of 10 ZTA ceramics
 
Creator Maiti, Payel
Eqbal, Ammar
Bhattacharya, Manjima
Das, Pradip Sekhar
Ghosh, Jiten
Mukhopadhyay, Anoop Kumar
 
Subject Engineering Materials
 
Description Here we report for the very first time, the detailed mechanisms of the formation of `micro pop-in' events observed during nanoindentation at 10-1000 mN load in a 10 ZTA (i.e., 10 vol% zirconia toughened alumina) ceramic. Explicit analysis of the experimental results backed up by comprehensive Field Emission Scanning Electron Microscopy (FESEM) based evidences suggests that the maximum shear stress (tau(max)) generated underneath the nanoindenter, the formations of shear bands and localized microcrackings play significant role in the initiation of nanoscale plastic events in the present ZTA ceramic.
 
Publisher Elsevier
 
Date 2019-05
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://cgcri.csircentral.net/4618/1/maiti2019.pdf
Maiti, Payel and Eqbal, Ammar and Bhattacharya, Manjima and Das, Pradip Sekhar and Ghosh, Jiten and Mukhopadhyay, Anoop Kumar (2019) Micro pop-in issues in nanoindentation behaviour of 10 ZTA ceramics. Ceramics International, 45 (7, A). pp. 8204-8215. ISSN 0272-8842
 
Relation http://cgcri.csircentral.net/4618/