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Lead diffusion in α-Zr

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Abstract.

Pb diffusion in α-Zr matrix between 823 and 1123 K was measured using heavy ion Rutherford backscattering spectrometry (HIRBS) technique. A deviation from the Arrhenius law was observed, with two different regions. At low temperatures the activation energy Q is close to the expected value for a substitutional diffuser but the pre-exponential factor D0 is higher than expected. Close to the phase transition temperature the opposite occurs, with a low Q value. This behavior is similar to the one observed for Hf and self-diffusion in α-Zr.

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Authors and Affiliations

  1. Departamento de Materiales, Comisión Nacional de Energía Atómica, Av. del Libertador 8250, 1429 Buenos Aires, Argentina (Fax: 54-11/4754-7362, E-mail: rodperez@cnea.gov.ar; dyment@cnea.gov.ar), , , , , , AR

    R.A. Pérez & F. Dyment

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  1. R.A. Pérez
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  2. F. Dyment
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Received: 29 September 1998 / Accepted: 29 January 1999 / Published online: 28 April 1999

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Pérez, R., Dyment, F. Lead diffusion in α-Zr . Appl Phys A 68, 667–671 (1999). https://doi.org/10.1007/s003390050958

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  • DOI: https://doi.org/10.1007/s003390050958

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