TU Darmstadt / ULB / TUbiblio

Using EBSD and TEM-Kikuchi patterns to study local crystallography at the domain boundaries of lead zirconate titanate

Farooq, M. U. ; Villaurrutia, R. ; MacLaren, I. ; Kungl, Hans ; Hoffmann, Michael J. ; Fundenberger, J.-J. ; Bouzy, E. (2008)
Using EBSD and TEM-Kikuchi patterns to study local crystallography at the domain boundaries of lead zirconate titanate.
In: Journal of Microscopy, 230 (3)
doi: 10.1111/j.1365-2818.2008.02004.x
Article, Bibliographie

Abstract

Reliable EBSD mapping of 90 degrees domains in a tetragonal ferroelectric perovskite has been achieved for the first time, together with reliable automated orientation determination from TEM-Kikuchi patterns. This has been used to determine misorientation angles at 90 degrees domain boundaries and thus local c/a ratios. The sources of orientation noise/error and their effects on the misorientation angle data have been thoroughly analyzed and it is found that this gives a cosine distribution of misorientation angles about the mean with a characteristic width related to the width of the orientation noise distribution. In most cases, a good agreement is found between local c/a ratios and global measurements by X-ray diffraction, but some clear discrepancies have also been found suggesting that real local variations are present, perhaps as a consequence of compositional inhomogeneities.

Item Type: Article
Erschienen: 2008
Creators: Farooq, M. U. ; Villaurrutia, R. ; MacLaren, I. ; Kungl, Hans ; Hoffmann, Michael J. ; Fundenberger, J.-J. ; Bouzy, E.
Type of entry: Bibliographie
Title: Using EBSD and TEM-Kikuchi patterns to study local crystallography at the domain boundaries of lead zirconate titanate
Language: English
Date: June 2008
Journal or Publication Title: Journal of Microscopy
Volume of the journal: 230
Issue Number: 3
DOI: 10.1111/j.1365-2818.2008.02004.x
Abstract:

Reliable EBSD mapping of 90 degrees domains in a tetragonal ferroelectric perovskite has been achieved for the first time, together with reliable automated orientation determination from TEM-Kikuchi patterns. This has been used to determine misorientation angles at 90 degrees domain boundaries and thus local c/a ratios. The sources of orientation noise/error and their effects on the misorientation angle data have been thoroughly analyzed and it is found that this gives a cosine distribution of misorientation angles about the mean with a characteristic width related to the width of the orientation noise distribution. In most cases, a good agreement is found between local c/a ratios and global measurements by X-ray diffraction, but some clear discrepancies have also been found suggesting that real local variations are present, perhaps as a consequence of compositional inhomogeneities.

Uncontrolled Keywords: domain wall; electron backscatter diffraction; ferroelectric; kikuchi pattern; lead zirconate titanate; misorientation
Additional Information:

SFB 595 A2

Divisions: DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis > Subproject A2: Manufacturing and characterization of PZT-ceramics with defined defect chemistry
Date Deposited: 27 Jul 2011 11:05
Last Modified: 03 Jan 2019 11:30
PPN:
Export:
Suche nach Titel in: TUfind oder in Google
Send an inquiry Send an inquiry

Options (only for editors)
Show editorial Details Show editorial Details