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FIZIKA A 10 (2001) 4 , 177-190
 
STRUCTURE OF BALL MILLED ZrO2 AND ZrO2 -10 mol %
Y2O3 POWDERS REVEALED BY HRTEM IMAGE PROCESSING
ANŠELKA M. TONEJC, IGOR DJERDJ and ANTUN TONEJC
Department of Physics, Faculty of Science, Bijenička 32, POB 331,
10002 Zagreb, Croatia
E-mail: andelka@phy.hr
Dedicated to Professor Kseno Ilakovac on the occasion of his 70th
birthday
Received 18 October 2001; Accepted 7 January 2002
Online 6 April 2002
High-resolution transmission electron microscope (HRTEM) image processing analysis is
used to analyse and to compare the process of ball milling in pure ZrO2 powders
and in ZrO2-10 mol % Y2O3 powders. Applying HRTEM image
processing to the grain boundary region and other defects, we are able to observe, at the
atomic level, a possible sequence of alloying and transition that occur at the grain
boundary, in the overlapping layers and on the stacking faults.
PACS numbers: 61.43.Gt, 68.37.Lp
UDC 537.533.35
Keywords: ZrO2 powder, ZrO2-10 mol % Y2O3 powder,
ball milling, high-resolution transmission electron microscopy, image processing, grain
boundaries, overlapping layers, stacking faults
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