Inter-fiber volume

C-C/Cu-Clad-Mo Joints The microstructure of the composite/braze interface (Fig. I) reveals braze infiltration of the inter-fiber regions to several hundred micrometer distance in 5 min. This is consistent with the sessile-drop wettability test results [10] on Cu-Ti/porous C in which the sessile drop volume continuously decreased due to the reactive infiltration of open porosity in graphite, and sessile drops of high Ti content (e.g., Cu-28Ti) rapidly and completely disappeared into the graphite substrate. The reaction of carbon with Ti in the braze forms the wettable compound titanium carbide which facilitates self-infiltration and sound bonding. 

Multiple studies of the viscosity of fiber suspensions have reported the significance of fiber properties. Guo et al. (2005) showed that the rheological properties of fiber suspensions increased with increasing fiber volume fraction and fiber aspect ratio. These effects also increased with decreasing shear rate. Numerical simulations by Switzer Klingenberg (2003) reported the strong influence that particle shape and inter-fiber friction have on the viscosity of fiber suspensions. The clustering of these suspensions also has a marked impact... 

In these equations, both and X are functions of the concentration of water absorbed by the fibers. Most textile fibers have very small diameters and very large surface/volume ratios. The assumption in the second equation of instantaneous thermal equilibrium between the fibers and the gas in the inter-fiber space does not therefore lead to appreciable error. The two equations in the model are not linear and contain three unknown, i.e., Cj-, T, and. A third equation should be established appropriately in order to solve the model. Researchers derived a third equation to obtain an analytical solution by assuming thatC is linearly dependent on T and C , and that fibers reach equilibrium with adjacent air instantaneously. Considering the two-stage sorption process of wool. Scientists proposed an... 

Aoryiic fibers have a market share of about 20% in the tremendous woddwide production of synthetic fibers, which presently amounts to some 7x10 metric tons par year The acrylic fibers are made from pdymers con >osed of at least 85% by weight of acrylonitrile, modified by one or more other monomers. Elespite the large volume production of acrylic fibers, much of the polymer chemistry and fiber phyrics involved, and particularly of the inter-relations between both, is still far from being fully understood. 

In this study, 3-D evaluation of data obtained from sub-pm-CT measurements was performed for characterizing industrially produced MDF the main focus of this investigation was to achieve a high resolution. For such evaluation, morphological operations were used in order to determine the proportion and the distribution of the sum of inter- and intra-particle pores on the one side and of fiber cell wall material on the other side in the panel. Additionally, it is of great interest to see if and how different sub-volume sizes influence the resulting pore and cell wall material size distribution and which sub-volume size is representative for the whole board. Finally, the correlations between pore size and cell wall material size proportion and the local density at a certain position in the cross-section were investigated. 

---