Density of crystal

FIG. 18-60 Fop Illation density of crystals resulting from Bujacian behavior. 

A steady-state population density of crystals in the region II is... 

The number density of crystals (v) increased linearly with an increase of t for all samples, which indicates a steady nucleation process. Figure 29 shows the plot of log/ against AT-2 for different 1.1 obeyed the well-known equation, I = Io exp(- C/AT2) where Iq and C are constants. These straight lines were parallel to each other. This indicates that the slope of the straight line C is almost constant irrespective of l. We obtained the average of C ((C)),... 

Low and Richards used a density gradient column to study the density of crystals of "mixed gramicidin fractions"56. 

We suggest that both the lamellar and the microfibrillar morphologies are formed by a nucleation and growth process. A low nucleation density of crystal solvates results in a lamellar morphology, whereas a high nucleation density of the crystalline PBT results in formation of microfibrils. 

The density of crystals can be determined by preparing a mixture of liquids (in which the crystals are insoluble ) such that the crystals neither float nor sink the crystals then have the same density as the liquid. The density of the liquid can be determined in the traditional way using a density bottle. 

The most convenient method of measuring the density of crystals is to suspend them in a liquid mixture, the composition of which is adjusted by adding one of the constituents until the crystals neither float nor... 

Variations in Crystal Deposits. An outstanding characteristic of insecticide blooms is the extreme variation in the crystal stand, in the density of crystals, in their size and shape, and the percent of total area covered (Figure 2) much of this variation is unexplained. The bark of conifer trees is complex in its microscopic structure (11), and after erosion by weathering becomes an even more complex surface on which crystallization of insecticides is almost totally unpredictable (32). 

The purpose of this experiment is to measure the density of crystals of germanium. Since the density p is defined by... 

All the highly crystalline Type I sputtered films are more or less porous, with densities of the order of 3,8 gm cm , compared with a typical value of 4.92 gm cm quoted for fully dense single crystals. Fleischauer et al pointed out that the ease with which the crystals can bend to a basal plane orientation will depend on the crystal size and the density of packing. They also suggested that an increased degree of pre-etching of the substrate would increase the number of reactive sites available for crystal formation, and therefore the density of crystal packing, as well as the... 

The UPD peak structure on polycrystalline substrates is not as well pronounced in cyclic voltammograms. Obviously, this structure is determined not only by the contributions of different crystallographically oriented substrate domains, but also by the higher density of crystal imperfections at the substrate surface. This is demonstrated in Fig. 3.5 for the system Ag(polycrystalline)/Pb. ... 

Microcrystalline fabric (Figure 7.6C), not to be confused with the randomly orientated crystals of carbonate mud-micrite textures, has been discriminated from columnar fabric on the basis of the irregular stacking of crystallites and the high density of crystal defects. It has been observed in annually laminated alpine stalagmites, where it forms milky, opaque and porous layers. The misorientation of some crystallites with respect to their substrate yields composite crystals with serrated to interfingered... 

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