Buscar
Mostrando ítems 111-120 de 163
Artículo
Structural ordering and magnetic properties of arc-melted FeGa alloys
(Elsevier, 2007)
X-ray diffraction, Mössbauer spectrometry and magnetic properties have been performed on FeGa arc-melted binary alloys in order to study the compositional dependence of the structural ordering and magnetic properties of ...
Artículo
The Crystal and Molecular Structure of 1-p-Chlorophenyl-4-(tt-a-erythrofuranosyl)-4-imidazoline-2-thione
(International Union of Crystallography, 1974)
The title compound, CISOsN2C~sH~3, the definitive formula of which has been established by X-ray structural analysis, is orthorhombic, space group P2~2121 with a= 7.806 (5), b= 29.417 (13) and c= 5-921 (5) A, Z--4. The ...
Artículo
Structure of l'-(p-Bromophenyl)-3'-ethyl- 1',3t,4',5 t -tetrahydro- 1,2-¢~• deoxy-D-glyeero-Dgu/ a-heptofuranoso[ 1,2-d]imidazole-2'-thione,* C16H21BrN2OsS
(International Union of Crystallography, 1984)
M r = 433.3, monoclinic, P21, a = 6.924 (3), b=8.661 (1), c=15.039(3)A, #=96.92(3) ° , v= 895.3 (4) A a, Z= 2, D, = 1.598 (5), Dx= 1.607 Mg m -a, Mo Ka, 2 = 0.7107/k, # = 2.42 mm -1, F(000) = 444, T = 300 K, R = 0.039 ...
Artículo
Structural Relaxation in Fe(Co)SiAlGaPCB Amorphous Alloys
(Elsevier, 2014)
The structural relaxation of multicomponent Fe(Co)SiAlGaPCB amorphous alloys was investigated calorimetrically for annealed samples over a wide temperature range below the glass transition temperature. Upon heating, the ...
Artículo
Lattice Dynamical Calculation of First-Order Thermal Diffuse Scattering in Phenothiazine
(International Union of Crystallography, 1985)
A computer program has been developed to calculate first-order thermal diffuse scattering (TDS) intensity from eigenvectors and eigenvalues of the dynamical matrix obtained within the harmonic approximation with an ...
Artículo
Nanocrystallization Kinetics Understood as Multiple Microprocesses Following the Classical Theory of Crystallization
(Elsevier, 2016)
In this work, we propose a model for using the classical Johnson-Mehl-Avrami-Kolmogorov (JMAK) crystallization theory to analyze nanocrystallization processes as a set of multiple microprocesses. This model is based on the ...
Artículo
Enhanced magnetocaloric response in Cr/Mo containing Nanoperm-type amorphous alloys
(AIP Publishing, 2007-02-01)
The magnetocaloric effect of Fe76Cr8−xMoxCu1B15 (x =0,4) alloys is studied. Although the combined addition of Cr and Mo is more efficient in tuning the Curie temperature of the alloy, the Mo-free alloy presents a higher ...
Artículo
Dipole–dipole interaction in superparamagnetic nanocrystalline Fe63.5Cr10Si13.5B9Cu1Nb3
(AIP Publishing, 2001)
Cr-substituted Finemet-type nanocrystalline alloy (Fe63.5Cr10Si13.5B9Cu1Nb3) has been studied by differential scanning calorimetry, x-ray diffraction, Mo¨ssbauer spectroscopy, and magnetic measurements. The Curie temperature ...
Artículo
Kinetic Analysis of the Transformation from 14M Martensite to L21 Austenite in Ni-Fe-Ga Melt Spun Ribbons
(Multidisciplinary Digital Publishing Institute (MDPI), 2021)
In this study, the non-isothermal kinetics of the martensitic transition from 14M modulated martensite to austenite phase in Ni55Fe19Ga26 ribbons obtained by melt-spinning has been analyzed. The proximity of the martensitic ...
Artículo
Mechanical Amorphization and Recrystallization of Mn-Co(Fe)-Ge(Si) Compositions
(MDPI, 2019-05)
Mechanical alloying using a planetary ball mill allowed us to obtain two homogeneous systems formed by units with nanometer size and MnCo0.8Fe0.2Ge1−xSix stoichiometry (x = 0 and 0.5). The phase evolution of the systems ...