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Laser Nanocrystallization of Metals
2014The results of experimental and theoretical studies of surface micro- and nanostructuring of metals and other materials irradiated directly by short and ultra-short laser pulses are reviewed. Special attention is paid to direct laser action involving melting of the material (with or without ablation), followed by ultrafast surface solidification, which
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Nanocrystallization of anatase in amorphous TiO2
Thermochimica Acta, 2004Abstract The kinetics of nanocrystallization in amorphous TiO 2 has been studied in non-isothermal conditions by DSC. It was found that this process could be well described by standard Johnson–Mehl–Avrami–Kolmogorov (JMA) model with kinetic exponent m ≅1.
Daniel Švadlák +5 more
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Nanocrystallization of Fe80B20 By ball milling
Nanostructured Materials, 1995By means of X-ray diffraction (XRD), transmission electron microscopy (TEM), as well as differential scanning calorimetry (DSC) measurements, the sequence of structural evolution by ball milling of polycrystalline and amorphous Fe80B20 alloys was studied. Ball milling of polycrystalline Fe80B20 alloy results in a continuous refinement of the grain size
G.J. Fan, X.P. Song, M.X. Quan, Z.Q. Hu
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Fabrication of TiO2 nanocrystallized glass
Applied Physics Letters, 2007Nanocrystallization of rutile and anatase was observed in a CaO–B2O3–Bi2O3–Al2O3–TiO2 crystallized glass. The color of the present crystallized glass was changed by the heat-treatment temperature, and x-ray diffraction (XRD) patterns of the crystallized glass show that the apparent color change is correlated with the formation of titania ...
Hirokazu Masai +3 more
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Nanocrystallization of amorphous Fe40Ni38B18Mo4 alloy
2008Nanocrystallization of amorphous magnetic materials, in general, leads to improvement in soft magnetic properties. It shows best soft magnetic properties when amorphous matrix consists of nano-particles (
D. Srivastava +2 more
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Surface nanocrystallization modification of anhydrite
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2012Abstract This paper reported a successful preparation of CaCO3/anhydrite composites of anhydrite coated with nanosized CaCO3 by chemical precipitation route using the Ca(OH)2–H2O–CO2 reaction system. The samples were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and BET ...
Wu Zhao, Huaming Yang, Chengli Huo
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Nanocrystallization mechanism of amorphous Fe78B13Si9
Applied Physics Letters, 2009The nanocrystallization mechanism of an amorphous alloy is discussed based on the kinetics of open nanospaces in Fe78B13Si9. There already exists a high concentration of Fe-enriched fluctuated sites with open nanospaces in the amorphous matrix. The structural and compositional fluctuation helps transient short-range Fe diffusion in the metastable ...
K. Sato +4 more
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FINEMET-type nanocrystallization kinetics
Thermochimica Acta, 2002Abstract The primary nanostructure formation kinetics in a set of Fe–Cu–Nb–Si–B ribbons has been studied by the use of differential scanning calorimetry in both continuous-heating and isothermal measuring regimes. The nanostructure formation consists of two independent kinetic modes, namely the Johnson–Mehl–Avrami nucleation-and-growth mode and the ...
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Nanocrystallization and magnetic anisotropy in
Journal of Magnetism and Magnetic Materials, 2005J.A. García +5 more
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Nanocrystallization and Magnetic Properties
Materials Science Forum, 1995Antonio Hernando, Tadeusz Kulik
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