Paper Title:
Excess Free Volume of High Angle Grain Boundaries in Aluminium
  Abstract

A new method is introduced to determine the absolute value of the boundary excess free volume. Along with the boundary energy the excess free volume belongs to the major thermodynamic properties of grain boundaries. The method utilizes the dependence of the contact angle at triple junctions of grain boundaries in Al-tricrystals on hydrostatic pressure. We investigated <111> tilt boundaries in the pressure range up to 14 kbar. In particular, for a 40° <111> tilt boundary with 2° twist component the boundary free volume was found to be equal to 5.03×10-11 m3/m2.

  Info
Periodical
Materials Science Forum (Volumes 519-521)
Edited by
W.J. Poole, M.A. Wells and D.J. Lloyd
Pages
1557-1562
DOI
10.4028/www.scientific.net/MSF.519-521.1557
Citation
V.A. Ivanov, D. A. Molodov, L. S. Shvindlerman, G. Gottstein, D. Kolesnikov, W. Łojkowski, "Excess Free Volume of High Angle Grain Boundaries in Aluminium", Materials Science Forum, Vols. 519-521, pp. 1557-1562, 2006
Online since
July 2006
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Price
$32.00
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