Solid solutions
Dislocations pinning by substitutional impurities in an atomic-scale model for the Al(Mg) solid solutions
... i=1 w i /n where the sum is performed on all the n obstacle configurations. As we study the interaction between dislocations and obstacles located in the vicinity of the slip plane, we choose to compare W with the ...
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Synthesis of γ-(Al1-xFex)2O3 solid solutions from oxinate precursors and formation of carbon nanotubes from the solid solutions using methane or ethylene as carbon source
... 3 solid solutions, producing iron nanoparticles, occurs at a tem- perature that is too low for the catalytic decomposition of methane to take place at the surface of the so-obtained ...little) solid ...
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Presence of Metallic Fe Nanoclusters in r-(Al,Fe)2O3 Solid Solutions
... )2O3 solid solutions prepared by the calcination in air of the corresponding γ-(Al 1- x Fe x )2O3 powders were studied by several techniques including X-ray diffraction, field-emission-gun scanning electron ...
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Variable properties of solid solutions of cerium-samarium tungstates Ce(2-x)Smx (WO4)3 (x≤0.3)
... Presently, we have focused our attention on new solid solutions based on a matrix Ce 2 (WO 4 ) 3 in which Sm 3+ ions substitute for Ce 3+ ions. The Ce 2 (WO 4 ) 3 phase was synthesized first by T. Greesling ...
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Thermal Expansion of (Ba1-xLax))Ti1-x/4 O 3 Solid Solutions
... rials. Moreover, the primary order parameter in barium titanate and its derivatives is the polarization due to ion displacements, and phase transitions can be detected by measuring the thermal expansion because ...
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Synthesis of carbon nanotube-Fe-Al2O3 nanocomposite powders by selective reduction of different Al1.8Fe0.2O3 solid solutions
... the nature of both the catalyst and the treatment atmos- The appropriate amounts of (NH4)2(C2O4)Ω2H2O, phere. 13,39,40 Using a zeolite-supported Co catalyst, Ivanov Al(NO 3 ) 3Ω 9H 2 O, and Fe(NO 3 ) 3Ω 9H 2 O were mixed ...
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Iron-stabilized nanocrystalline ZrO2 solid solutions: Synthesis by combustion and thermal stability
... Thus, it appears that the preparation method has a strong influence on the degree of incorporation of iron ions, either di- or tri-valent and either as substitutional or interstitial ions, into the monoclinic, the ...
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Synthesis, microstructural characterization, mechanical and transport properties of Ti2Al(CxNy) solid solutions and their relative end-members
... By nanoindentation test, it has been shown that intrinsic hardness and elastic modulus of substoichiometric Ti 2 Al(C x N y ) solid solutions are respectively in the 8-11 GPa and in the 220- 280 GPa range. ...
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Effect of Nd substitution on the magnetic order in CexNd1−xB6 solid solutions
... 0.8) solid solutions to determine the type of magnetic order occurring in these compounds as a result of the interplay between magnetic dipole exchange and antiferroquadrupolar ...
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Synthesis of carbon nanotube–Fe-Al2O3 nanocomposite powders by selective reduction of different Al1.8Fe0.2O3 solid solutions
... the nature of both the catalyst and the treatment atmos- The appropriate amounts of (NH4)2(C2O4)Ω2H2O, phere. 13,39,40 Using a zeolite-supported Co catalyst, Ivanov Al(NO 3 ) 3Ω 9H 2 O, and Fe(NO 3 ) 3Ω 9H 2 O were mixed ...
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Seven-coordinated iron(II) spin-crossover molecules: some learning from iron substitution in [FexMn1−x(L222N3O2)(CN)2]·H2O solid solutions
... O solid solutions where L 222 N 3 O 2 is a macrocyclic ligand = 2,13-dimethyl-6,9-dioxa-3,12,18-triazabicyclo [ ...the solid solutions study was to investigate the effect of metal dilution on ...
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Magnetic order and multipole interactions in CexPr1−xB6 solid solutions
... occurring in Ce x Pr 1−x B 6 solid solutions as a function of the rare-earth composition. This is important from the point of view of multipole interactions because O xy - type quadrupolar couplings are ...
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On the Mechanism of Diffusion in Solid Solutions of Substitution
... On the Mechanism of Diffusion in Solid Solutions of Substitution Lebedev, T. A. https://publications-cnrc.canada.ca/fra/droits L’accès à ce site Web et l’utilisation de son contenu sont assujettis aux ...
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The key role of the composition and structural features in fluoride ion conductivity in tysonite Ce1-xSrxF3-x solid solutions.
... Pure tysonite-type Ce 1−x Sr x F 3−x solid solutions for 0 ≤ x < 0.15 were prepared by a solid-state route at 900 °C. The cell parameters follow Vegard's laws for 0 ≤ x ≤ 0.10 and the solubility ...
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Energy transfer in polyacene solid solutions: a guide to the literature to the end of 1956
... L’accès à ce site Web et l’utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D’UTILISER CE SITE WEB. NRC Publicat[r] ...
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Creep behavior of binary solid solutions of nickel with molybdenum and tungsten
... diffusion controlled mechanism, such as disloaction climb, dislocation.. glide in the presence of viscous drag obstacles or non-conservative motion of jogged screw dislocati[r] ...
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Energy transfer in polyacene solid solutions - II a bibliography for 1957-1960
... L’accès à ce site Web et l’utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D’UTILISER CE SITE WEB. Report (Nati[r] ...
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Solid Solution/Exsolution
... natural solutions, a large number of chemical elements are usually present which may participate to the formation of secondary minerals, either as major constituents or as trace elements in solid ...
8
Olympiades 2017 - solutions
... En effet, si ( est un multiple de 3, deux rangées de pavés taille 3 conviennent, si ( est supérieur de 2 à multiple de 3, on complète deux rangées de carrés de taille 3 par trois car[r] ...
3
Limit-point buckling analyses using solid, shell and solid–shell elements
... In order to overcome the aforementioned limitations, solid–shell elements have recently emerged as an interesting alternative. Indeed, these elements combine a shell-like response with three-dimensional element ...
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