Effect of morphology on the mobility of nanosized liquid pb inclusions in solid Al

被引：2

作者：

Prokofjev, S. I. ^{[1
,2
]}

Zhilin, V. M. ^{[1
]}

Johnson, E. ^{[2
,3
]}

Dahmen, U. ^{[4
]}

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Russia

[2] Univ Copenhagen, NBI, Nano Sci Ctr, DK-2100 Copenhagen, Denmark

[3] Riso Natl Lab, Dept Mat Res, DK-4000 Roskilde, Denmark

[4] Lawrence Berkeley Natl Lab, Natl Ctr Elect Microscopy, Berkeley, CA 94720 USA

来源：

DS 2006: DIFFUSION AND STRESSES | 2007年 / 264卷

基金：

俄罗斯基础研究基金会;

关键词：

transmission electron microscopy; liquid lead inclusions; aluminum matrix; thermal motion; dislocations; diffusion coefficient; microscopic mechanism; roughening transformation;

D O I：

10.4028/www.scientific.net/DDF.264.55

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Diffusion of nanosized liquid Pb inclusions attached to dislocations in thin aluminum foils was investigated in a wide temperature range using in-situ transmission electron microscopy. Trajectories of motion of the inclusions along the dislocations were used to determine their diffusion coefficients. The temperature and size dependences of diffusion coefficients of the inclusions were obtained. They indicate that (i) studied inclusions hold {111} facets on their surface in the studied temperature range; (ii) the mobility of the inclusions is controlled by step nucleation at the {111) facets.

引用

页码：55 / +

页数：2

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