High temperature instability of hollow nanoparticles

被引：12

作者：

Fischer, F. D. ^{[1
]}

Svoboda, J. ^{[2
]}

机构：

[1] Inst Mech, A-8700 Leoben, Austria

[2] Acad Sci Czech Republic, Inst Phys Mat, Brno 61662, Czech Republic

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2008年 / 10卷 / 02期

关键词：

hollow nanosphere; shrinking; bulk diffusion; dissipation; surface energy; nanoshells; modeling and simulation;

D O I：

10.1007/s11051-007-9242-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The concept of the Gibbs energy balance is used to derive the evolution equation of both surfaces of a hollow nanosphere. The process is driven by reducing the surface energy and the elastic energy stored in the bulk. A semianalytical solution is provided for the time period during which a hollow nanosphere shrinks to a compact nanospherical particle. Comparison with recently reported results is performed.

引用

收藏

页码：255 / 261

页数：7

相关论文

共 7 条

[1] Kinetic analysis of the instability of hollow nanoparticles [J].

Gusak, AM ;

Zaporozhets, TV ;

Tu, KN ;

Gösele, U .

PHILOSOPHICAL MAGAZINE, 2005, 85 (36) :4445-4464

[2] Preparation and characterization of Y2O3 hollow spheres [J].

Han, Chunrui ;

Wu, Xiuyong ;

Lin, Yusheng ;

Gu, Guohua ;

Fu, Xun ;

Hi, Zhengshui .

JOURNAL OF MATERIALS SCIENCE, 2006, 41 (12) :3679-3682

[3] Onsager's coefficients and diffusion laws - a Monte Carlo study [J].

Hartmann, MA ;

Weinkamer, R ;

Fratzl, P ;

Svoboda, J ;

Fischer, FD .

PHILOSOPHICAL MAGAZINE, 2005, 85 (12) :1243-1260

[4] Diffusion and creep in multi-component alloys with non-ideal sources and sinks for vacancies [J].

Svoboda, J. ;

Fischer, F. D. ;

Fratzl, P. .

ACTA MATERIALIA, 2006, 54 (11) :3043-3053

[5] Application of the thermodynamic extremal principle to modeling of thermodynamic processes in material sciences [J].

Svoboda, J ;

Turek, I ;

Fischer, FD .

PHILOSOPHICAL MAGAZINE, 2005, 85 (31) :3699-3707

[6] Relaxation of the elastic strain energy of misfitting inclusions due to diffusion of vacancies [J].

Svoboda, J ;

Gamsjäger, E ;

Fischer, FD .

PHILOSOPHICAL MAGAZINE LETTERS, 2005, 85 (09) :473-479

[7] Formation of hollow nanocrystals through the nanoscale Kirkendall Effect [J].

Yin, YD ;

Rioux, RM ;

Erdonmez, CK ;

Hughes, S ;

Somorjai, GA ;

Alivisatos, AP .

SCIENCE, 2004, 304 (5671) :711-714