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Mostrando ítems 321-330 de 633
Artículo
On the broadening of the magnetic entropy change due to Curie temperature distribution
(AIP Publishing, 2014-03-03)
We have studied the correlation between the broadening of the isothermal magnetic entropy change and the Curie temperature (TC) distribution in nanostructured Pr2Fe17 and Nd2Fe17 alloys produced by high-energy ball-milling ...
Artículo
Mechanical and electrical properties of low SWNT content 3YTZP composites
(Elsevier, 2015)
Fully dense 3mol% Y2O3-ZrO2 (3YTZP) composites with low single wall carbon nanotube content (0.5, 1 and 1.5vol% SWNT) were prepared by colloidal processing and spark plasma sintering (SPS). SWNT were distributed at ceramic ...
Artículo
Alteración de las propiedades mecánicas por formación de precipitado en ZrO2 parcialmente estabilizado con Y2O3
(1993)
Se ha estudiado el comportamiento mecánico a altas temperaturas del Zr02 monocristalino parcialmente estabilizado con 4. 7 mol% de Y 203, mediante ensayos de velocidad de deformación constante, a 1.4xl0·5 s· 1, en aire a ...
Artículo
Two Milling Time Regimes in the Evolution of Magnetic Anisotropy of Mechanically Alloyed Soft Magnetic Powders
(Elsevier, 2011)
The milling time evolution of magnetic anisotropy of ball milled powders can be described considering two regimes. First, for short milling times, the main factor affecting the magnetic behavior of the alloy is the ...
Artículo
The influence of Co addition on the magnetocaloric effect of Nanoperm-type amorphous alloys
(AIP Publishing, 2006-09-22)
The effect of Co addition on the magnetocaloric effect of amorphous alloys with Nanoperm-type composition has been studied for temperatures above room temperature. Co addition produces an increase in the maximum magnetic ...
Artículo
Evolution of number of citations per article in Materials Science: possible causes and effect on the impact factor of journals
(Springer, 2023-11)
An overall rise in the citation parameters used in the metrics of scientifc publications (i.e. journal impact factor, JIF) has taken place since the last decade of the previous century, coinciding with the electronic ...
Artículo
R-curve Evaluation of 3YTZP/Graphene Composites by Indirect Compliance Method
(Elsevier, 2023)
This work addresses the crack growth resistance of 3 mol% Yttria-doped Tetragonal Zirconia Polycrystalline (3YTZP) spark-plasma sintered (SPS) composites containing two types of graphene-based nanomaterials (GBN): exfoliated ...
Artículo
(1E,3E)-4-(tetra-O-acetyl-D-arabino-tetritol-1-yl)-1-(4-tolyl)-1,2-diaza-1, 3-butadiene
(International Union of Crystallography, 2006)
n the title compound, C 21 H 26 N 2 O 8 , the configurations of the three chiral centres are known from the synthesis, corre- sponding to a d - arabino configuration. Both double bonds show the E configuration ...
Artículo
Sample size bias in the empirical assessment of the acute risks associated with daylight saving time transitions
(Taylor & Francis, 2023)
The assessment of the acute impact of daylight saving time (DST) transitions is a question of great interest for an understanding of the benefits and inconveniences of a practice that is now under public scrutiny in Europe ...
Artículo
Surveying a Sample of the Spanish Ophthalmologic Community about Vaccination against Herpes Zoster
(Multidisciplinary Digital Publishing Institute (MDPI), 2023)
There are currently two authorized vaccines against herpes zoster (HZ) that have been shown to be safe and effective in its prevention: Zostavax, a zoster vaccine live (ZVL), and Shingrix, a recombinant zoster Vaccine ...