Soft colloids make strong glasses

被引：0

作者：

Johan Mattsson

Hans M. Wyss

Alberto Fernandez-Nieves

Kunimasa Miyazaki

Zhibing Hu

David R. Reichman

David A. Weitz

机构：

[1] Harvard University,Department of Physics and Harvard School of Engineering and Applied Sciences

[2] Cambridge,Department of Chemistry

[3] Massachusetts 02138,Department of Physics

[4] USA,undefined

[5] Columbia University,undefined

[6] New York,undefined

[7] New York 10027,undefined

[8] USA,undefined

[9] University of North Texas,undefined

[10] Denton,undefined

[11] Texas 76203,undefined

[12] USA,undefined

[13] Present addresses: Department of Applied Physics,undefined

[14] Chalmers University of Technology,undefined

[15] SE-412 96 Göteborg,undefined

[16] Sweden (J.M.); TU Eindhoven,undefined

[17] Institute for Complex Molecular Systems and Department of Mechanical Engineering,undefined

[18] PO Box 513,undefined

[19] 5600 MB Eindhoven,undefined

[20] The Netherlands (H.M.W.); School of Physics,undefined

[21] Georgia Institute of Technology,undefined

[22] Atlanta,undefined

[23] Georgia 30332,undefined

[24] USA (A.F.-N.); Institute of Physics,undefined

[25] University of Tsukuba,undefined

[26] Tsukuba 305-8571,undefined

[27] Japan (K.M.).,undefined

来源：

Nature | 2009年 / 462卷

关键词：

D O I：

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中图分类号：

学科分类号：

摘要：

Glasses can be classified as either fragile or strong, according to whether they show a marked dependence of their relaxation time with temperature when approaching the glass transition. It has been difficult so far to study this behaviour in molecular liquids and to understand where it stems from. Now Mattsson et al. show that colloids incorporating deformable particles can also exhibit this rich behaviour: previously they had been thought to produce only fragile glasses. The fragility of these colloids is dependent on the elasticity of the particles, with softer particles leading to stronger behaviour. Since colloids are easy to study by imaging and other techniques, this model system could help unravel the origin of fragility in glasses.

引用

页码：83 / 86

页数：3

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