Diffusion of zinc in praseodymium

M. P. Dariel

doi:10.1080/14786437008225844

Diffusion of zinc in praseodymium

M. P. Dariel

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

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Abstract

The thin-layer lathe-sectioning technique has been used to measure the solute diffusivities of zinc in b.c.c. and double-h.c.p. praseodymium. The diffusivities in the b.c.c. phase can be expressed by D = 6·3 × 10^–1 exp (–27 000/RT) cm²/sec, and in the double-h.c.p. phase by D=1·8 × 10^–1 exp (–24 800/RT) cm²/sec. The diffusion behaviour of zinc is similar to that of previously studied noble metal solutes. These solutes are believed to diffuse by means of the combined substitutional–interstitial diffusion mechanism. It is therefore suggested that zinc is partly dissolved as interstitials in the praseodymium matrix.

Original language	English
Pages (from-to)	563-571
Number of pages	9
Journal	Philosophical Magazine
Volume	22
Issue number	177
DOIs	https://doi.org/10.1080/14786437008225844
State	Published - 1 Jan 1970
Externally published	Yes

ASJC Scopus subject areas

Engineering (all)
Physics and Astronomy (all)

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N2 - The thin-layer lathe-sectioning technique has been used to measure the solute diffusivities of zinc in b.c.c. and double-h.c.p. praseodymium. The diffusivities in the b.c.c. phase can be expressed by D = 6·3 × 10–1 exp (–27 000/RT) cm2/sec, and in the double-h.c.p. phase by D=1·8 × 10–1 exp (–24 800/RT) cm2/sec. The diffusion behaviour of zinc is similar to that of previously studied noble metal solutes. These solutes are believed to diffuse by means of the combined substitutional–interstitial diffusion mechanism. It is therefore suggested that zinc is partly dissolved as interstitials in the praseodymium matrix.

AB - The thin-layer lathe-sectioning technique has been used to measure the solute diffusivities of zinc in b.c.c. and double-h.c.p. praseodymium. The diffusivities in the b.c.c. phase can be expressed by D = 6·3 × 10–1 exp (–27 000/RT) cm2/sec, and in the double-h.c.p. phase by D=1·8 × 10–1 exp (–24 800/RT) cm2/sec. The diffusion behaviour of zinc is similar to that of previously studied noble metal solutes. These solutes are believed to diffuse by means of the combined substitutional–interstitial diffusion mechanism. It is therefore suggested that zinc is partly dissolved as interstitials in the praseodymium matrix.

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ER -

Diffusion of zinc in praseodymium

Abstract

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