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 comp
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
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 ...
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...
The solid state of the matter is one in which the constituent particles, such as atoms, molecules, or ions, are tightly packed in the lattice and unable to move. They can only vibrate in the direction of their axes. Solids have distinct features due to the unique packing of constituent pa...
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 ...
HPMCAS L and M grades are mostly commonly found in research studies because they are soluble at relatively lower pH conditions compared to HPMCAS H. HPMCAS is more challenging to process than PVPVA by HME due to its higher viscosity and greater reactivity during thermal processing which may ...
(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 ...
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,...