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26Al Tracer Diffusion in Nominally Undoped Single Crystalline α-Al2O3

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Abstract:

Simultaneous 18O and 26Al tracer diffusion experiments were performed in nominally undoped single crystalline α-Al2O3. The results clearly show that the bulk diffusivity of aluminium is much higher than the bulk diffusivity of oxygen in nominally undoped alumina. Comparing the 26Al tracer diffusivities of Ti doped (300-400 wt. ppm Ti) and nominally undoped single crystalline α-Al2O3 one finds that the aluminium bulk diffusivity is insensitive to the Ti doping.

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Periodical:

Defect and Diffusion Forum (Volumes 323-325)

Pages:

75-79

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.323-325.75

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Online since:

April 2012

Authors:

P. Fielitz, Günter Borchardt, S. Ganschow, R. Bertram

Keywords:

26Al, Aluminium Diffusion, Nominally Undoped Alumina, SIMS

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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References

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