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Evidences of the participation of excited states in the positronium formation mechanism in Sm1- xEux(dpm)3 and Gd1- xEux(dpm)3 solid solutions
(2019-12-27)
Positron annihilation lifetime (PALS) and optical spectroscopies measurements were performed in Sm3+, Eu3+ and Gd3+ dipivaloylmethanate complexes, Ln(dpm)3 (dpm = 2,2,6,6-tetramethyl-3,5-pentanedionate), and also on their ...
Anelastic Relaxation Measurements in Nb-46wt%Ti Alloys with Interstitial Solutes in Solid Solution
(Trans Tech Publications Ltd, 2012-01-01)
Anelastic relaxation measurements were performed in a Nb-46wt%Ti alloy, in the temperature range of 300 to 700 K, using a torsion pendulum operating at an oscillating frequency near 2.0 Hz. The samples were measured in ...
Enhancing The Description Of Ssle Data For Binary And Ternary Fatty Mixtures
(Elsevier Science BVAmsterdam, 2016)
Physical characterization of K-doped 0.9PMN-0.1PT synthesized by an association of the columbite route and the polymeric precursor method
(2005-12-01)
The solid solution 0.9PbMg 1/3Nb 2/3O 3-0.1PbTiO 3 is one of the most widely investigated relaxor ceramic, because of its high dielectric constant and low sintering temperatures. PMN-PT powders containing single perovskite ...
Mechanical damping of the snoek peak in tantalum - Oxygen system
(2008-03-27)
Interstitial solutes in body-centered cubic metals, such as oxygen in tantalum, produce ideally Snoek effects when they are in solutions enough diluted. However, for higher concentration of these solutes, more complex ...
Size-dependent phase transitions in nanostructured zirconia-scandia solid solutions.
(Laboratório Nacional de Luz Síncrotron.Campinas, 2013-02-26)
Size effects on phase stability and phase transitions in technologically relevant materials have received growing attention. Several works reported that metastable phases can be retained at room temperature in nanomaterials, ...
Diffusion of Interstitial Solutes in Nb-46wt% Ti Alloys Measured by Mechanical Spectroscopy
(Trans Tech Publications Ltd, 2012-01-01)
The mechanical properties of metals with a body-centered cubic (bcc) structure, such as Nb, Ta, V, and their alloys, are modified with the introduction of interstitial impurities, such as O, N, C, or H. These metals can ...
Oxygen Diffusion in an Nb-Ta Alloy Measured by Mechanical Spectroscopy
(Trans Tech Publications Ltd, 2011-01-01)
When metals that present bcc crystalline structure receive the addition of interstitial atoms as oxygen, nitrogen, hydrogen and carbon, they undergo significant changes in their physical properties because they are able ...
Nitrogen diffusion in the Nb-2.0wt%Ti measured by mechanical spectroscopy
(Trans Tech Publications Ltd, 2008-01-01)
Metals that present bcc crystalline structure, when receiving addition of interstitial atoms as oxygen, nitrogen, hydrogen and carbon, undergo significant changes in their physical properties, being able to dissolve great ...