The most important characteristics of amorphous solids are that they: (1) do not have long-range, regular atomic order, (2) form irregular shapes, (3) soften over a range of temperatures depending on their composition and thermal history, (4) fracture in irregular, unpredictable patterns (e....
When amorphous solids crystallize, the first phases to emerge are often not the thermodynamic ground states, but are instead metastable crystals1,2,3,4,5. The formation of metastable phases during such crystallization processes is ubiquitous in nature, a well-known example being the crystallization ...
making the process sensitive to micro-mixing effects on scale up. Amorphous solids also have significantly lowerthermodynamic stabilitythan related crystalline material and may subsequently crystallize during formulation and storage. Because of the non-uniformity of the amorphous solid it can more easily ...
Amorphous solids have peculiar properties distinct from crystals. One of the most fundamental mysteries is the emergence of solidity in such nonequilibrium, disordered state without the protection by long-range translational order. A jammed system at zer
Selected facets of magnetization behavior in site disordered rare earth-transition metal compounds are presented. Examples are given for the relation of weak exchange links to intrinsic hardness, for the similarity of magnetization behavior between amorphous and site disordered crystalline materials and for...
are normally combinations of metallic elements. They have large numbers of nonlocalized electrons; that is, these electrons are not bound to particular atoms. Many properties of metals are directly attributable to these electrons. Metals are extremely good conductors of electricity and heat and are ...
the synthesis of amorphous Fe–Zr–B MNPs was achieved using the chemical reduction method. We also believe that it is very important to obtain information about amorphous MNPs and we consider the activation energy in amorphous MNPs as one of the key parameters in this context. Because, in mat...
(ii) whether the hypervalent local coordination is observed in a diversity of amorphous (chalcogenide) materials; (iii) what is the general rule, if any, governing the manifestation of hypervalent units in amorphous solids; and more importantly, (iv) how are they related to microscopic or ...
The term “amorphous” is generally used for non-crystalline solids that are obtained as thin films, flakes, nanoparticles by bottom-up approach (condensation of vapors on a cold substrate), or as powders by grinding the material in a ball mill. On the other hand, glasses are defined as ...
Existence of polymorphism is known to be a unique phenomenon in solid materials, wherein existence of different physical forms including shape, size, and arrangement of molecules in the physical state or polymorphs of same compound are known in the nature. A single compound, or a salt complex,...