Crystallites


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Crystallites

 

small crystals lacking a clearly defined (faceted) form. Crystallites are found as crystalline granules in various polycrystalline formations, including metal ingots, rocks, and minerals.

References in periodicals archive ?
Plucking was found to occur when the crystallites were separated from each other.
Interfacial free-volume voids between neighboring nanoparticles composed of arsenic sulfide crystallites embedded in PVP environment are defined as most favorable positron trapping sites, they being rather loosely packed in respect to variety of crystallographic polymorphs used for milling.
X-ray diffraction shows that the synthesized ZnO nanoparticles have hexagonal crystal structure with an average crystallite size of 29 nm.
The physical characteristics such as crystallite size and unit cell parameters are presented in Table 1.
Table 1: The crystallite sizes were calculated using Scherrer's relationship, d = K[lambda]/[beta] cos[theta] (where A be the wavelength of [lambda] rays = 1.
This suggests a continuous decrease of the crystallite size because based on mechanisms discussed in [8] and a final value (for 70 h) of about 13nm.
The crystallite size calculated using the Scherrer's formula was generally different to particle size or grain size, because individual particles or grains can contain several crystallites or domains with different orientations (Uvarov & Popov 2013).
Impressive improvement in the transparency of polypropylene can be achieved by limiting the dimensions of the crystalline regions to below the wavelength of light, using small quantities of nucleating agents, which create more crystallites but smaller ones.
As TC(hkl) increases, the preferential growth of the crystallites in the direction perpendicular to the hkl plane is greater (Table 3).
Shell dissolution occurred at the exposed shell surface at boundaries between individual crystallites (Fig.