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), pp. 445-454. ISSN 0022-2720,
[Article]
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. |
| Title: | Using EBSD and TEM-Kikuchi patterns to study local crystallography at the domain boundaries of lead zirconate titanate |
| Language: | English |
| 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. |
| Journal or Publication Title: | Journal of Microscopy |
| Volume of the journal: | 230 |
| Issue Number: | 3 |
| Uncontrolled Keywords: | domain wall; electron backscatter diffraction; ferroelectric; kikuchi pattern; lead zirconate titanate; misorientation |
| 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 |
| URL / URN: | http://dx.doi.org/10.1111/j.1365-2818.2008.02004.x |
| Additional Information: | SFB 595 A2 |
| Identification Number: | doi:10.1111/j.1365-2818.2008.02004.x |
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