Substitution of elements allows the adjustment of the film characteristics to the device function.
The numerous galleries produced by the xylophagous insects weakened the wood, making the substitution of elements or the introduction of plugs necessary.
Recently, the substitution of elements such as La, Nd, Mn, in AB5-type alloys and the total replacement of the La-based alloys by others intermetallic systems (Mg-based and Ti-based) have been alternatives proposed for cost reduction [18, 19, 20].
In this paper, the chemical substitution effects of elements on photoluminescence properties of YAG Ce phosphors were studied by orthogonal experimental design.
Substitution of trace elements, such as Sr, Mg and Zn ions into the structure of calcium phosphates is the subject of widespread investigation.
Site substitution of ternary elements in ordered compounds influences the electronic structure and hence the properties of compounds at the continuous level.
If we assume that inorganic parts are elements of an organism, this way of understanding an organism is radically different from the idea that an organism is a dynamic complex able to survive the continuous substitution of its elements (A.33d).
The chemical synthesis permits a purposeful optimization of the polymers with respect to workability, ceramic yield and composition by the substitution of different elements in the basic structure as well as the organic side groups.
Bismuth molybdate is known to be active for the oxidation of propene to acrolein and its activity can be altered by substitution of other elements (e.g. Fe, V, W) into the scheelite phase of α-Bi2Mo3O12 α-Bi2Mo3O12
As the standard Gibbs-free energy change of these reactions is largely negative (-618 kJ mole-1) [3], it is believed that the formation of m*/mo is responsible for the extrinsic doping of ZnO Al, which is contrary to the conventional doping mechanism based on the substitution of foreign elements.
These comprise (a) substitution of T elements (Si, Al and P) in the framework of silicates, zeolites, AlPOs and SAPOs, (b) encapsulation of metal complexes in intrazeolite space (ship-in-a-bottle catalysts) and (c) grafting or tethering of metal complexes to the internal surface of the molecular sieves.
