Jump Frequency of Cd Tracer Atoms in β-Mn

Abstract:

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The jump frequency of Cd tracer atoms in pure and Al-doped b-Mn was determined from measurements of quadrupole relaxation using the method of perturbed angular correlation of gamma rays. The jump frequency of Cd in b-Mn containing about 4.5 at.% Al had an activation enthalpy of 0.67(3) eV. In pure b-Mn at 950 K, the jump frequency was a factor about 8 larger than the value of 9.2 MHz in the alloy. Information was also obtained about the sluggish kinetics of the a-Mn to b-Mn polymorphic transformation.

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Periodical:

Defect and Diffusion Forum (Volumes 237-240)

Edited by:

M. Danielewski, R. Filipek, R. Kozubski, W. Kucza, P. Zieba, Z. Zurek

Pages:

396-401

DOI:

10.4028/www.scientific.net/DDF.237-240.396

Citation:

M. O. Zacate and G. S. Collins, "Jump Frequency of Cd Tracer Atoms in β-Mn", Defect and Diffusion Forum, Vols. 237-240, pp. 396-401, 2005

Online since:

April 2005

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$35.00

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