Hexagonal rods

Cry staUization at temperatures of about 40°C results in heavy nucleation and a fine product. At temperatures above 75°C, only cry stal growth occurs, giving rise to large, weU-cry staUized aggregates composed of hexagonal rods and prisms (Fig. 2a). 

Another open question concerns the phase CS3O . An early X-ray investigation [46] revealed an anti-TiI3 structure, i.e., a hexagonal rod packing of [Cs6/20] chains formed from trans face sharing [Cs O] octahedra. Such [M3X] chains were also... 

Crystal habit modification. Several crystal habits have been reported in the open and patent literature for zeolite omega. Elongated hexagonal rods (15,16) or fibres (17) have been reported when the zeolite resulted from the recrystallization of another zeolite, Y (15) or S (17), or of clays (16). Moreover the natural counterpart of zeolite omega, mazzite, appears as bundles of needle-shaped particles (18). All these solids have been grown at low supersaturation levels, hence under conditions in which our results show that the growth in the direction <001> prevails on the growth normal to the c-axis (Fig.8). 

The Ceraver filter element consisted of a hexagonal rod about 40 cm wide by about 81.5 cm long containing 19 lumens. Lumen diameter was about 6 mm resulting in a total membrane area of 0.29-m2 (3.14 ft2). Membrane pore diameter was either 0.2 or 0.8 (im. 

S. K. Cheng and N. E. Todreas, Hydrodynamic Models and Correlations for Bare and Wire-Wrapped Hexagonal Rod Bundles—Bundle Friction Factors, Subchannel Friction Factors and Mixing Parameters, Nuclear Engineering and Design, (92) 227-251,1986. 

S. Square vs. Hexagonal Rod Spacing in Pile. Since there is no preference in lattice geometry from the standpoint of physics, the square lattice spacing of rods will be adopted for its easier adaption to construction of the tank shields, piping, valve arrangements, etc. 

Kratschmer and Huffman called the soot Fullerite , but they were always aware that to have a new allotrope of carbon it was necessary to isolate the actual crystal form. By subliming the soot and extracting the sublimate with benzene, Fostiropoulos obtained orange-brown crystals, which could be in the form of hexagonal rods, platelets, or starshaped flakes. Lowell Lamb, working for Huffman at Tucson, confirmed the UV spectra. They published their results [76], but the definitive X-ray diffraction of a single crystal had still not been achieved, or alternatively, a single line NMR spectrum would have been sufficient to show that Ceo did, indeed, have a soccer ball structure. 

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