Faceted Surface Grain Morphology of Rapidly Solidified Alumina: Characterization and Potential Applications

The study reports on the formation of regular multi‐faceted surface grains during laser surface modification of alumina ceramics. The formation of such faceted morphology of the grains can be strongly correlated with the formation of crystallographic texture. Such evolution of crystallographically‐t...

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Bibliographic Details
Published in:Advanced engineering materials 2009-12, Vol.11 (12), p.1030-1033
Main Authors: Harimkar, Sandip P., Kenik, Edward A., Shim, Sanghoon, Dahotre, Narendra B.
Format: Article
Language:English
Subjects:
AFM
alumina
ATOMIC FORCE MICROSCOPY
CERAMICS
COMMUNICATIONS
Cross-disciplinary physics: materials science
rheology
electron backscatter diffraction
Exact sciences and technology
laser-processing
LASERS
MATERIALS SCIENCE
MICROSCOPY
MICROSTRUCTURE
microstructures
MORPHOLOGY
ORIENTATION
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Physics
rapid solidification
Solidification
texture
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Summary:The study reports on the formation of regular multi‐faceted surface grains during laser surface modification of alumina ceramics. The formation of such faceted morphology of the grains can be strongly correlated with the formation of crystallographic texture. Such evolution of crystallographically‐textured, multi‐faceted grains opens up new avenues for laser surface modification, where regular three dimensional surface features are formed through solidification processing. The study reports on the formation of regular multi‐faceted surface grains during laser surface modification of alumina ceramics. The formation of such faceted morphology of the grains can be strongly correlated with the formation of crystallographic texture. Such evolution of crystallographically textured, multi‐faceted grains opens up new avenues for laser surface modification, where regular three‐dimensional surface features are formed through solidification processing.
ISSN:1438-1656
1527-2648
DOI:10.1002/adem.200900197