Ultra-fast diffusion of copper in praseodymium

M. P. Dariel

doi:10.1063/1.1660532

Ultra-fast diffusion of copper in praseodymium

M. P. Dariel

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

The serial sectioning method has been used to measure the solute diffusivities of copper in praseodymium. In the bcc phase the diffusivity of copper can be expressed by D=5.7×10^-2 exp(-17 800/RT) cm ²/sec, and in the double-hcp phase by D=8.4×10^-2 exp(-18 100/RT) cm²/sec. It is most likely that copper diffuses in praseodymium by means of the combined substitutional-interstitial mechanism, similar to the other noble-metal solutes. Comparison of the present results with the previously measured diffusivities of zinc indicates that the solute diffusivities increase with decreasing solute valence.

Original language	English
Pages (from-to)	2251-2254
Number of pages	4
Journal	Journal of Applied Physics
Volume	42
Issue number	6
DOIs	https://doi.org/10.1063/1.1660532
State	Published - 1 Dec 1971
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (all)

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title = "Ultra-fast diffusion of copper in praseodymium",

abstract = "The serial sectioning method has been used to measure the solute diffusivities of copper in praseodymium. In the bcc phase the diffusivity of copper can be expressed by D=5.7×10-2 exp(-17 800/RT) cm 2/sec, and in the double-hcp phase by D=8.4×10-2 exp(-18 100/RT) cm2/sec. It is most likely that copper diffuses in praseodymium by means of the combined substitutional-interstitial mechanism, similar to the other noble-metal solutes. Comparison of the present results with the previously measured diffusivities of zinc indicates that the solute diffusivities increase with decreasing solute valence.",

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AU - Dariel, M. P.

PY - 1971/12/1

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N2 - The serial sectioning method has been used to measure the solute diffusivities of copper in praseodymium. In the bcc phase the diffusivity of copper can be expressed by D=5.7×10-2 exp(-17 800/RT) cm 2/sec, and in the double-hcp phase by D=8.4×10-2 exp(-18 100/RT) cm2/sec. It is most likely that copper diffuses in praseodymium by means of the combined substitutional-interstitial mechanism, similar to the other noble-metal solutes. Comparison of the present results with the previously measured diffusivities of zinc indicates that the solute diffusivities increase with decreasing solute valence.

AB - The serial sectioning method has been used to measure the solute diffusivities of copper in praseodymium. In the bcc phase the diffusivity of copper can be expressed by D=5.7×10-2 exp(-17 800/RT) cm 2/sec, and in the double-hcp phase by D=8.4×10-2 exp(-18 100/RT) cm2/sec. It is most likely that copper diffuses in praseodymium by means of the combined substitutional-interstitial mechanism, similar to the other noble-metal solutes. Comparison of the present results with the previously measured diffusivities of zinc indicates that the solute diffusivities increase with decreasing solute valence.

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U2 - 10.1063/1.1660532

DO - 10.1063/1.1660532

M3 - Article

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EP - 2254

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 6

ER -

Ultra-fast diffusion of copper in praseodymium

Abstract

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