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Mostrando ítems 1-10 de 163
Artículo
X-ray Structure and Thermal Motion of Barium N-Dithioearboxylatoglyeinate Trihydrate
(International Union of Crystallography, 1986)
Ba2+.C3H3NO2S2-.3H2 O, Mr=340.6 , triclinic, P1, a = 7.906 (1), b = 7.905 (1), c = 8.000 (1) A, ct= 96.34 (1), fl= 100.08 (1), 7= 93.54 (1)% V= 487.6 (1)A 3, Z- 2, Din= 2.31 (1), D x = 2.320 Mg m -3, 2(Mo Kct) = 0.7107/k, ...
Artículo
A New Method for Determining the Curie Temperature From Magnetocaloric Measurements
(Institute of Electrical and Electronics Engineers, 2016)
A new method is proposed for determining the Curie temperature from magnetocaloric measurements. It is based on the field dependence of the magnetic entropy change close to the Curie temperature. The main advantages over ...
Artículo
Lattice Dynamics and Thermal Crystallographic Parameters in Phenothiazine
(International Union of Crystallography, 1984)
A computer program has been developed to study the lattice dynamics of molecular crystals in the harmonic approximation with the external Born-yon KS.rm~n formalism and an atom-atom potential function. Dispersion curves ...
Artículo
Magnetocaloric effect: From materials research to refrigeration devices
(Elsevier, 2018)
The magnetocaloric effect and its most straightforward application, magnetic refrigeration, are topics of current interest due to the potential improvement of energy efficiency of cooling and temperature control systems, ...
Artículo
Structure and Molecular-Packing Analysis of a Heptofuranosoimidazolidine-2-Thione
(International Union ofCrystallography, 1987)
1-(4-Bromophenyl)-3-ethyl-(3,5,6,7-tetra-0- acetyl-1,2-dideoxy-n-glycero-P-n-talo-heptofuranoso )- * IUPAC name: 1-{6-acetoxy-3-bromophenyl-2-thioxo-2,3,3a,- 5,6,6a-tetrahydro-1H-furo[2,3-d]imidazol-5-yl ...
Artículo
Analysis of nanocrystallization kinetics and crystal size distribution under limited growth approach
(Elsevier, 2012)
Two different simulation approaches have been used to describe nanocrystallization processes: a limited growth approach, which is an extension from instantaneous growth approximation, and an average soft impingement ...
Artículo
X-Ray Structure and Molecular-Packing Analysis of Artemetin
(International Union of Crystallography, 1987)
5-Hydroxy-3,3' ,4',6,7-pentamethoxyflavone (flavone is 2-phenyl-4H-1-benzopyran-4-one ), C20H20- 08, M,= 388·4, monoclinic, P2/n, a= 7·518 (4), b=13·625(3), C=17·766(5)Á, P=98·52(3) 0 , V = 1803 (l)Á\ Z=4, Dx= ...
Artículo
Combined kinetic and Bean–Rodbell approach for describing field-induced transitions in LaFe11.6Si1.4 alloys
(Institute of Physics Publishing, 2021)
We propose a combination of the Kolmogorov–Johnson–Mehl–Avrami nucleation and growth theory and the Bean–Rodbell model to describe the field-induced transition in LaFe11.6Si1.4 alloys. The approach is applied to a set of ...
Artículo
Ball Milling of Fe83Zr6B10Cu1 Amorphous Alloy Containing Quenched in Crystals
(Elsevier, 2007)
A Fe83B10Zr6Cu1 melt-spun amorphous alloy has been ball milled in the presence of partially crystalline ribbon pieces, in order to speed up its mechanical nanocrystallization process. Microstructure and magnetic properties ...
Artículo
Extension of the Classical Theory of Crystallization to Non-isothermal Regimes: Application to Nanocrystallization Processes
(Elsevier, 2012)
The non-isothermal kinetics of primary crystallization processes is studied from numerically generated curves and their predictions have been tested in several nanocrystallization processes. Single processes and transformations ...