Sintering helps in
recrystallizing the nanostructure and causes a shift from an excited metastable (activated) state into a low-energy crystalline state.
Considering the two factors of process cost control and
recrystallizing quality effect, combined with our experience in the traditional heat treatment of [Si.sub.0.2][Ge.sub.0.8]/Si system and the simulation results in Figure 4, we propose using 873 K as the preheating temperature of the [Si.sub.0.2][Ge.sub.0.8]/Si system before laser recrystallization.
It was surprising because the particles were not just melting and
recrystallizing but going back and forth between the two states.
With an increase in strain to 0.35, the recrystallization process is promoted, and complete recrystallization is recognizable when the deformation temperature is 950[degrees]C and the time interval is around 10 s, which can be seen in Figure 2(b) and it is consistent with microstructural evolution in Figure 3.Itcan be explained that an increase in strain leads to an increase in dislocation density and defects in the material, which contributes to the store energy accumulation that plays a role as the
recrystallizing driving force.
The polymerization-inhibited juice samples had been prepared by extracting polyphenolics by adsorption onto polyvinylpolypyrrolidone;
recrystallizing the polyphenolics; by oxidation to quinones by potassium dichromate; and adding 2% TETA and quinones to the juice.
This new line of TPUs (figure 1) is based on a soft, fast
recrystallizing ether soft segment which offers good properties and very good processing characteristics.
"Press Release" begins by comparing the laboratory crystallization of a "new synthetic substance" to a sexual initiation, and ends by imagining first the compound's dissolving, then its
recrystallizing in a new form, the "lovers' knot" of two Alpine climbers clasping hands.
Metamorphism took place in several cycles,
recrystallizing the limestone into marble during the early Triassic.
5 shows a broad weaker endothermic signal between 300[degrees]C and 325[degrees]C, due mostly to the melting of the lower melting fraction of initially present crystals, but also to a contribution from the small amount of
recrystallizing species, which continuously melt and recrystallize in this region.
If put in frozen foods, fish antifreeze proteins could help prevent ice from
recrystallizing, as it does, for example, in ice cream left in the freezer too long.
Closed-loop material handling will show granulation of bottle flash,
recrystallizing, drying, and proportioning of regrind back in with virgin PET.
The essence of the compaction process is to melt a fraction of the surface of each fiber under a comparatively low contact pressure, to apply a substantially higher pressure for a short time to achieve excellent consolidation of the structure, so that on cooling the
recrystallizing polymer acts to bind the fibers together like the resin matrix in a fiber/resin composite.
