Brown, The crystal structure
of [alpha]-[Ca.sub.3][([PO.sub.4]).sub.2], Acta Crystallogr.
Okamoto of Ibaraki University in Japan and his colleagues now have gleaned new details about the size, composition, and crystal structure
of dust within the Beta Pictoris disk, suggest the location of a possible planet as well as of a trio of asteriod or comet belts.
Some of the more important ways in which texture influences materials behavior and properties include: the link between crystal structure
and crystal morphology and the use of crystal morphology to create texture; the effect of texture on tensor properties of bulk and thin film ceramics and metals, e.g., piezoelectric constants, elastic coefficients; and the effect of texture on the intensities of diffraction peaks.
For example, Olsen and Roth (69) determined the crystal structure
of [BaNd.sub.2][Ti.sub.3][O.sub.10] by electron diffraction and high-resolution electron microscopy to be monoclinic instead of the reported orthorhombic symmetry.
These new results underline the central role of hybrid modes for the stabilization of the crystal structure
, in agreement with theoretical calculations.
Notably, the resulting diffraction from the X-ray experiment revealed the crystal structure
and density of the samples.
The formation of some quaternary with compositions Cu-II-III-[Se.sub.3] (x = 1/2), Cu-[II.sub.2]-III-[Se.sub.4] (x =2/3) and [Cu.sub.2]-II-III-[Se.sub.5] (x = 1/3) have been reported [8-11], and the first crystal structure
characterization of one I-II-III-[VI.sub.3] semiconductor member, indicated a degradation of symmetry from the chalcopyrite structure 14 2d to a related tetragonal structure P 4 2c .
Keywords: Synthesis, 1,3,4-thiadiazole, Pyridine, Fungicidal activities, Crystal structure
After annealing above 145[degrees]C, the patterns with two strong diffraction peaks of the (100) and (010) planes indicate that the crystal structure
is the typical [alpha]-form (triclinic structure).
Zirconia is also known to gradually weaken over time as the crystal structure
changes from a tetragonal phase to a monoclinic one when exposed to hydrothermal condition.
In this paper, we prepared anatase crystal structure
Ti[O.sub.2] photocatalyst films with different morphologies using CVD and determined the effects of film morphology on photocatalytic activity.
GRX-70 alters the crystal structure
of the tin deposit from large columnar typical of electrolytic tin into a smaller grain equiaxed structure similar to the structure of "non whisker producing" tin/lead.