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Materials 2011, 4(9), 1564-1598; doi:10.3390/ma4091564

On Structure and Properties of Amorphous Materials

Research School of Engineering, College of Engineering and Information Technology, Australian National University, Ellery Crescent, Acton ACT 2601, Australia
Received: 15 July 2011 / Revised: 20 August 2011 / Accepted: 6 September 2011 / Published: 15 September 2011
(This article belongs to the Special Issue Amorphous Alloys)
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Abstract

Mechanical, optical, magnetic and electronic properties of amorphous materials hold great promise towards current and emergent technologies. We distinguish at least four categories of amorphous (glassy) materials: (i) metallic; (ii) thin films; (iii) organic and inorganic thermoplastics; and (iv) amorphous permanent networks. Some fundamental questions about the atomic arrangements remain unresolved. This paper focuses on the models of atomic arrangements in amorphous materials. The earliest ideas of Bernal on the structure of liquids were followed by experiments and computer models for the packing of spheres. Modern approach is to carry out computer simulations with prediction that can be tested by experiments. A geometrical concept of an ideal amorphous solid is presented as a novel contribution to the understanding of atomic arrangements in amorphous solids.
Keywords: classification of amorphous solids; atomic clusters; crystallisation; vitrification; glass transition; density fluctuations; ideal amorphous solid model classification of amorphous solids; atomic clusters; crystallisation; vitrification; glass transition; density fluctuations; ideal amorphous solid model
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Stachurski, Z.H. On Structure and Properties of Amorphous Materials. Materials 2011, 4, 1564-1598.

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