Therefore, using the extend-forging as the first step in cogging process is more efficient to close the voids, considering the morphology of the real voids in the ingot.
While on a "bump-like" nanostructure the film enwraps the bumps and boosts the material/air fill factor in a suitable range for anti-reflection, a coating on a "sponge-like" structure closes the voids and grows predominantly on top of the structure.
The results indicate that the SMM could decrease the water absorption of mixtures and transfer the commutation void from closed void, as well as increase the retained marshall stability of mixtures.
Using the analysis results, a limit value of the closing behavior of voids was quantified, and it is now understood that the voids close at more than Q = 0.21.
In addition, elimination of tensile residual stresses, exertion of compressive residual stresses and closing of cracks, voids and cavities are expected, too.
In areas with a signal void on MR-ACDIXON, the outer contour follows the area on NAC-PET, representing the edge, and closes any signal void breaching the boundary.
The structural weakness is controlled by the development of a void space immediately downstream of a point of confluence, but this void space can be closed in subsequent processing.
Table 10 Open and closed void ratios of porous concretes.
In this study, the closing behavior of internal voids was examined by a deformation analysis involving the 2-D finite element method (FEM), which simulates voids in steel ingots in the compression process (upset process).
By the time the teams started playing ball — after a delay that lasted as long as a typical game — most of the crowd was gone, and justifiably so: Kids had bedtimes, Metro was closing and the information void offered no particular reason to remain.
It often helps to tilt the screed board back about 10 to 15 degrees as you pull it, and some finishers prefer to "saw" the board back and forth across the concrete to close up small voids in the surface.
