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Applicant:
Indian Institute of Technology (IIT) Patna 
Author:
Kumar K, Dutta H, Pradhan SK, Chowdhury A.  
Corresponding Authors:
Chowdhury A 
DOI #:
https://doi.org/10.1016/j.scriptamat.2018.12.001 
Title:
Stabilization of ZrO2 matrix: Revisiting the ‘archaic’ issue with a peculiar example,  
Journal:
Scripta Materialia  
Year:
2019 
Volume:
162 
Page:
408-411 
Keywords:
Stabilization of ZrO2 matrix 
Abstract:
Theories/mechanisms involving stabilization pathways for zirconia systems involve conflicting arguments. The present work explains why the oxygen vacancy factor should not be treated as the ‘universal’ mechanism always; the role of the dopant metal cation also needs a renewed attention. Our studies on Zn2+-doped ZrO2 system finds that an easy (and fast) transformation to monoclinic phase is noted due to the instabilities of O O bond lengths (2.67 Å and 2.59 Å) in the horizontal and vertical planes of the ZrO6 octahedra, thereby, triggering a prompt conversion of an otherwise stable (cubic/tetragonal) ZrO2 to monoclinic within a narrow temperature window (500–750 °C). 
Entered by:
Venkata Dantham on 2020-08-04 
 
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