A study of microstructural imaging of Y2O3-doped Al2O3 with bimodal grain size distribution

Authors
Fenk, B Opielka, H Kuhnemann, S Gulgun, MA Bischoff, E
Citation
B. Fenk et al., A study of microstructural imaging of Y2O3-doped Al2O3 with bimodal grain size distribution, PRAKT METAL, 36(8), 1999, pp. 433-445
Citations number
11
Categorie Soggetti
Metallurgy
Journal title
PRAKTISCHE METALLOGRAPHIE-PRACTICAL METALLOGRAPHY
ISSN journal
0032678X → ACNP
Volume
36
Issue
8
Year of publication
1999
Pages
433 - 445
Database
ISI
SICI code
0032-678X(199908)36:8<433:ASOMIO>2.0.ZU;2-H
Abstract
The morphology and grain growth of Y2O3-doped Al2O3-ceramics are investigat ed using atomic force microscopy, high resolution scanning electron microsc opy, confocal laser microscopy and orientation imaging microscopy. With Y2O 3-contents in excess of 500 ppm, bimodal grain size distribution and strong grain growth were observed. The methods of contrasting available using the various imaging techniques are explained and their possibilities and limit s of use discussed.