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Explosive Crystallization of Amorphous Substances with Fixed Crystallitesa stable crystalline state. In the overwhelming majority of cases, this relaxation is accompanied by release of heat and a change of specific volume, i.e., it is a first-order phase transition. However, it occurs far from conditions of phase equilibrium and includes mechanisms of crystal generation

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Decomposition of a Solid Solution on the Surface of Lithium Niobate Crystals: Structure, Morphology,hralski method. The composition of the most perfect of these, most frequently used in technology, is not stoichiometric relative to the molar concentrations of lithium and niobium. A lithium deficit in the amount of ~1.4 mole % occurs in them [2]. The chemical formula of the crystals is more accurat

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Structural Analogs of α-Quartz — Aluminum and Gallium OrthophosphatesTherefore, they exhibit piezoelectric properties. Crystals of a single structural type with different chemical composition can have physical parameters differentiating them somewhat from each other. Comparative study of such characteristics is hampered by the lack of single crystals suitable for phy

APEX

Growth Rate Problems of KDP Type Single Crystalsre especially widely used in cases where the size of the transverse cross section of the light beam is measured in units and tens of centimeters since the crystals grown from solution are the best available with respect to maximal dimension with retention of the required optical quality. This holds

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Impurity Diffusion in a Crystal Growing Near the Stepped Interfacial Surface equilibrium coefficient ... The impurity surface concentration can be expected to have a value intermediate between the concentrations in the two adjacent phases. Therefore, the inequilibrium .. >> .. should be fulfilled for impurities with small ... If the interfacial surface is stepped (vicinal),

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Cellular Substructures in Single Crystalline Solid Solutions of Inorganic Fluorides Having the Fluore typical dissipative structures [1–4]. Theoretical and practical aspects of cellular structure generation have been extensively investigated (for example, [5–25]). Cellular crystals are often unsuitable for such practical uses as optics because of their inhomogeneity.