QUASI-MELTING OF SMALL PARTICLES

被引：38

作者：

MARKS, LD ^{[1
]}

AJAYAN, PM ^{[1
]}

DUNDURS, J ^{[1
]}

机构：

[1] NORTHWESTERN UNIV,INST TECHNOL,DEPT CIVIL ENGN,EVANSTON,IL 60201

来源：

ULTRAMICROSCOPY | 1986年 / 20卷 / 1-2期

关键词：

STRUCTURAL ANALYSIS - Mathematical Models;

D O I：

10.1016/0304-3991(86)90172-5

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

We investigate the energetics of structural fluctuations in small particles, a phenomenon recently observed by high resolution electron microscopy. Using a continuum model with anisotropic surface energies and isotropic inhomogeneous elasticity, we estimate the activation energy for these transformations. The results indicate that the primary cause of the structural fluctuations is the reduction of the surface energy anisotropy as the temperature is raised, either the thermal or electronic temperature.

引用

页码：77 / 82

页数：6

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