DIFFUSION OF BISMUTH AND GOLD IN NANOCRYSTALLINE COPPER

被引：51

作者：

HOFLER, HJ ^{[1
]}

AVERBACK, RS ^{[1
]}

HAHN, H ^{[1
]}

GLEITER, H ^{[1
]}

机构：

[1] UNIV SAARLAND,FACHBEREICH WERKSTOFFWISSENSCH & FERTIGUNGSTECH,W-6600 SAARBRUCKEN,GERMANY

来源：

JOURNAL OF APPLIED PHYSICS | 1993年 / 74卷 / 06期

关键词：

D O I：

10.1063/1.354477

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements of Bi and Au diffusion in nanocrystalline (n-) Cu and of Bi in copper thin films have been performed. The results show that (a) the diffusivity in n-Cu can be enhanced by more than ten orders of magnitude with respect to that in single-crystalline Cu. (b) Grain boundaries in n-Cu have a higher free energy and volume than conventional grain boundaries. (c) Relaxation can take place in n-Cu. (d) Diffusion measurements in n-materials represent a convenient means to determine thermodynamic properties such as grain boundary energies, solubilities, heats of segregation, and solution.

引用

页码：3832 / 3839

页数：8

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