Interface diffusion and amorphous intergranular layers in nanocrystalline Fe90Zr7B3

Simone Herth; Martin Eggersmann; Paul-Dieter Eversheim; Roland Würschum

doi:10.1063/1.1697614

Interface diffusion and amorphous intergranular layers in nanocrystalline Fe90Zr7B3

Simone Herth, Martin Eggersmann, Paul-Dieter Eversheim, Roland Würschum

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

Abstract

Iron tracer diffusion was studied in soft-magnetic nanocrystalline Fe90Zr7B3 without any influence of porosity, relaxation, or grain growth. The interfacial diffusion characteristics differ substantially from grain boundaries in metals due to the presence of an intergranular amorphous phase. The reduced diffusivity in thin amorphous layers compared to in the initial amorphous phase indicates the effect of confinement. The indication of a second, fast interfacial diffusion path is found and quantitatively analyzed within the framework of a two interface-type model.

Original language	English
Pages (from-to)	5075-5080
Journal	Journal of Applied Physics
Volume	95
DOIs	https://doi.org/10.1063/1.1697614
Publication status	Published - 2004

Fields of Expertise

Advanced Materials Science

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10.1063/1.1697614

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Energy Materials & Nanomaterials
Brossmann, U., Steyskal, E., Würschum, R. & Klinser, G.
1/01/00 → …
Project: Research area
Nanocrystalline Materials: Synthesis and Properties
Brossmann, U. & Würschum, R.
1/01/00 → 31/12/21
Project: Research project

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title = "Interface diffusion and amorphous intergranular layers in nanocrystalline Fe90Zr7B3",

abstract = "Iron tracer diffusion was studied in soft-magnetic nanocrystalline Fe90Zr7B3 without any influence of porosity, relaxation, or grain growth. The interfacial diffusion characteristics differ substantially from grain boundaries in metals due to the presence of an intergranular amorphous phase. The reduced diffusivity in thin amorphous layers compared to in the initial amorphous phase indicates the effect of confinement. The indication of a second, fast interfacial diffusion path is found and quantitatively analyzed within the framework of a two interface-type model.",

author = "Simone Herth and Martin Eggersmann and Paul-Dieter Eversheim and Roland W{\"u}rschum",

year = "2004",

doi = "10.1063/1.1697614",

language = "English",

volume = "95",

pages = "5075--5080",

journal = "Journal of Applied Physics",

issn = "1089-7550",

publisher = "American Institute of Physics Publising LLC",

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T1 - Interface diffusion and amorphous intergranular layers in nanocrystalline Fe90Zr7B3

AU - Herth, Simone

AU - Eggersmann, Martin

AU - Eversheim, Paul-Dieter

AU - Würschum, Roland

PY - 2004

Y1 - 2004

N2 - Iron tracer diffusion was studied in soft-magnetic nanocrystalline Fe90Zr7B3 without any influence of porosity, relaxation, or grain growth. The interfacial diffusion characteristics differ substantially from grain boundaries in metals due to the presence of an intergranular amorphous phase. The reduced diffusivity in thin amorphous layers compared to in the initial amorphous phase indicates the effect of confinement. The indication of a second, fast interfacial diffusion path is found and quantitatively analyzed within the framework of a two interface-type model.

AB - Iron tracer diffusion was studied in soft-magnetic nanocrystalline Fe90Zr7B3 without any influence of porosity, relaxation, or grain growth. The interfacial diffusion characteristics differ substantially from grain boundaries in metals due to the presence of an intergranular amorphous phase. The reduced diffusivity in thin amorphous layers compared to in the initial amorphous phase indicates the effect of confinement. The indication of a second, fast interfacial diffusion path is found and quantitatively analyzed within the framework of a two interface-type model.

U2 - 10.1063/1.1697614

DO - 10.1063/1.1697614

M3 - Article

SN - 1089-7550

VL - 95

SP - 5075

EP - 5080

JO - Journal of Applied Physics

JF - Journal of Applied Physics

ER -

Interface diffusion and amorphous intergranular layers in nanocrystalline Fe90Zr7B3

Abstract

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Energy Materials & Nanomaterials

Nanocrystalline Materials: Synthesis and Properties

Cite this