Effect of annealing on the excess free volume and strength of amorphous alloys

Effect of Thermobaric Treatment on the Nanoporosity and Properties of Amorphous Alloys

“…It follows from [ vated temperatures) are close to the activation energy of viscous flow in amorphous alloys. The growth in the activation energy with the temperature is associated with enhancement of the cooperative mode of the process and decrease of the free volume and of the internal stresses [8]. When analyzing the driving forces of curing in the alloys we should also take into account the forces of the Laplace pressure due to the curvature of the pores.…”

Elementary Excitations of Electrons in Surficial Region of the Amorphous and Annealed Fe$_{73.6}$Cu$_{1}$Nb$_{2.4}$Si$_{15.8}$B$_{7.2}$

“…Над-лишковий вільний об'єм уявляють як дефект внутрішньої структу-ри, видалення якого не призводить до зміни характеристик аморф-ного стану. В протилежність цьому, структурно-обумовлена скла-дова є невід'ємною характеристикою аморфного стану, яка повніс-тю анігілює тільки при повній кристалізації стопу [49]. Оскільки наявність вільного об'єму в аморфному стопі буде викликати внут-рішні напруги, логічно припустити, що це може призводити до збі-льшення енергії плазмонів.…”

Engineering of polymers with a free volume in abrasive tool composites

“…The accumulated experience indicates that there is a good reason to use the polymer characteristics related to the notion of a free volume. Contrary to the term "free volume" of inorganic glasses, which is used to denote microscale pores [11], in polymers this notion denotes the looseness of molecular packing [12], i.e., a distance between chains, which exists even at zero degrees K. This characteristic is more often used to describe diffused processes of migration of gases in polymeric gas separating membranes [13]. The free volume is related to a glass transition of polymers (temperature and time of polymeric chains relaxation) by the following equation…”