Laser-assisted atom probe analysis of zirconia/spinel nanocomposite ceramics

Contrary to the conventional belief that insulators cannot be field evaporated, we have demonstrated that atom probe analysis of bulk insulating ceramics, yttoria-stabilized tetragonal zirconia with spinel dispersoids, is possible by using an ultraviolet femtosecond pulse laser. Needle-like specimen...

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Bibliographic Details
Published in:Scripta materialia 2009-10, Vol.61 (7), p.693-696
Main Authors: Chen, Y.M., Ohkubo, T., Kodzuka, M., Morita, K., Hono, K.
Format: Article
Language:English
Subjects:
Atom probe tomography
Ceramics
Laser-assisted atom probe
Zirconia
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Summary:Contrary to the conventional belief that insulators cannot be field evaporated, we have demonstrated that atom probe analysis of bulk insulating ceramics, yttoria-stabilized tetragonal zirconia with spinel dispersoids, is possible by using an ultraviolet femtosecond pulse laser. Needle-like specimens were prepared from spark plasma sintered bulk ceramics by the focused ion beam technique. Three-dimensional elemental distributions from both the zirconia and spinel have clearly demonstrated that laser-assisted field evaporation yields quantitative atom probe tomography.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2009.05.043