MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Characterization and Determination of Elastic Property of High-Density Nanocrystalline Gold Prepared by Gas-Deposition Method
Hisanori TanimotoSeiji SakaiEiji KitaHiroshi Mizubayashi
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2003 Volume 44 Issue 1 Pages 94-103

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Abstract

Nanocrystalline (n-) Au specimens with the density of 19400±200 kg/m3 were prepared by the gas deposition method. Since rearrangement of n-Au particles on the specimen surfaces takes place just after landing, the grain boundary energy of (0.3±0.15) J/m2 is comparable with 0.45 J/m2 reported for the bulk polycrystalline (p-) Au, and the concentration of vacancy type defects is about 15×10−4 in the as deposited state decreasing with the grain growth. The Young modulus observed at 10 K is almost the same to that estimated under the condition that stresses applied to the constituent crystallites are equal among all the crystallites while strains are variable.

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© 2003 The Japan Institute of Metals and Materials
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