A scaling law study of the initial stage of microwave sintering of iron spheres

D. Demirskyi; D. Agrawal; A. Ragulya

doi:10.1016/j.scriptamat.2011.11.017

A scaling law study of the initial stage of microwave sintering of iron spheres

D. Demirskyi
, D. Agrawal
, A. Ragulya

Materials Research Institute (MRI)

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

25 Scopus citations

Abstract

The application of a classical sphere-to-sphere approach showed the possibility of identifying the main diffusion mechanisms operating during the initial stage of microwave sintering of iron powder. A neck growth exponent of n = 7 was found during conventional sintering of iron, which suggests that surface diffusion is the main sintering mechanism. This sintering mechanism was confirmed by examining the scaling law suggested by Herring. A fourfold increase in the pre-exponential factor (from 7 × 10 ^-8 to 2 × 10 ^-4) in favor of microwave sintering was observed.

Original language	English (US)
Pages (from-to)	323-326
Number of pages	4
Journal	Scripta Materialia
Volume	66
Issue number	6
DOIs	https://doi.org/10.1016/j.scriptamat.2011.11.017
State	Published - Mar 2012

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2011.11.017

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title = "A scaling law study of the initial stage of microwave sintering of iron spheres",

abstract = "The application of a classical sphere-to-sphere approach showed the possibility of identifying the main diffusion mechanisms operating during the initial stage of microwave sintering of iron powder. A neck growth exponent of n = 7 was found during conventional sintering of iron, which suggests that surface diffusion is the main sintering mechanism. This sintering mechanism was confirmed by examining the scaling law suggested by Herring. A fourfold increase in the pre-exponential factor (from 7 × 10 -8 to 2 × 10 -4) in favor of microwave sintering was observed.",

author = "D. Demirskyi and D. Agrawal and A. Ragulya",

note = "Funding Information: This work was financially supported by STCU \# 4259 , which is gratefully acknowledged. The authors express their thanks to Prof. M.S. Kovalchenko (IPMS) for valuable suggestions and discussion. Copyright: Copyright 2012 Elsevier B.V., All rights reserved.",

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AU - Demirskyi, D.

AU - Agrawal, D.

AU - Ragulya, A.

N1 - Funding Information: This work was financially supported by STCU # 4259 , which is gratefully acknowledged. The authors express their thanks to Prof. M.S. Kovalchenko (IPMS) for valuable suggestions and discussion. Copyright: Copyright 2012 Elsevier B.V., All rights reserved.

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N2 - The application of a classical sphere-to-sphere approach showed the possibility of identifying the main diffusion mechanisms operating during the initial stage of microwave sintering of iron powder. A neck growth exponent of n = 7 was found during conventional sintering of iron, which suggests that surface diffusion is the main sintering mechanism. This sintering mechanism was confirmed by examining the scaling law suggested by Herring. A fourfold increase in the pre-exponential factor (from 7 × 10 -8 to 2 × 10 -4) in favor of microwave sintering was observed.

AB - The application of a classical sphere-to-sphere approach showed the possibility of identifying the main diffusion mechanisms operating during the initial stage of microwave sintering of iron powder. A neck growth exponent of n = 7 was found during conventional sintering of iron, which suggests that surface diffusion is the main sintering mechanism. This sintering mechanism was confirmed by examining the scaling law suggested by Herring. A fourfold increase in the pre-exponential factor (from 7 × 10 -8 to 2 × 10 -4) in favor of microwave sintering was observed.

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A scaling law study of the initial stage of microwave sintering of iron spheres

Abstract

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