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

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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

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General Physics and Astronomy

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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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T1 - Ultra-fast diffusion of copper in praseodymium

AU - Dariel, M. P.

PY - 1971/12/1

Y1 - 1971/12/1

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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VL - 42

SP - 2251

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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