Fe-Si
Ab Initio Molecular Dynamics Investigation of Molten Fe–Si–O in Earth's Core
... namely, Si and O ...both Si and O into the core during core‐mantle differentiation provides a mechanism to account for the core's density ...molten Fe–Si–O ternary are therefore essential to ...
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Effect of Cooling Rate and Neodymium Addition on Beta Intermetallic Phase of Al–Fe–Si Ternary System
... Fe,MnhSi2 phase instead of beta phase [ 5 ]. Also, rare earth elements are known to modify the eutectic silicon [ 6-8 ]. Furthermore, other studies show their influence on the morphology of beta phase as seen in ...
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Experimental study of the impact of punching operations on the high cycle fatigue strength of Fe-Si thin sheets
... 2. Material description and specimens preparation 2.1. Material In the present work, the fatigue behavior of a non-oriented fully-processed sheet of Fe–Si electrical steel is investigated. It is delivered ...
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High Cycle Fatigue Strength of Punched Thin Fe-Si Steel Sheets
... Introduction The development of high speed electric motors is submitted to stringent conditions: high efficiency levels over a wide speed range, weight reduction to optimize the motor volume, excellent reliability, and ...
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Effect of Cooling Rate and Neodymium Addition on Beta Intermetallic Phase of Al–Fe–Si Ternary System
... [ 6 ] who used La and Y and Rao et al. [ 8 ] with samarium. Nevertheless, the use of neodymium as beta phase modifier bas not been reported. Therefore, the objective of this present work is to characterize the effect of ...
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Soil organo-mineral associations formed by co-precipitation of Fe, Si and Al in presence of organic ligands
... 347 Table 1: Proportions of Fe-O-C and Fe-O-Fe bounds estimated by linear combination fitting. Proportions under the 348 three reference standards designated “Fe-O-Fe” show ...
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Assessment of the al corner of the ternary Al-Fe-Si system
... Open Archive TOULOUSE Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web[r] ...
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An ecosystem model of the global ocean including Fe, Si, P colimitations
... [ 9 ] The HAMOCC5 model is derived from the HAMOCC3.1 model described by Six and Maier-Reimer [1996]. The main difference is the limitation of the autotro- phic activity not only by phosphate but also by iron and ...
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Assessment of the al corner of the ternary Al-Fe-Si system
... HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci- entific research documents, whether they are pub- lished or not.. The documents may come from te[r] ...
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The fate of Si and Fe while nuclear glass alters with steel and clay
... mainly Fe, Si, O, Al, and ...The Si/Zr ratio decreases by a factor of 2 in the GALs (4 –5) compared to the PG ( ∼10), mainly attributed to the Si content of the PG being twice that of the ...
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Influence of atmosphere on high‐temperature oxidation of Fe‐Cr‐Si model alloy
... the oxidation process has already been examined on chromia-forming alloys. It generally acts as a protective element. Even though too much silicon is considered as detrimental for the steel mechanical properties, its ...
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Si loin, si proches... Enquête sur les usagers distants de la Bpi
... Il convient toutefois de relativiser ces chiffres, que la proportion non négligeable de nouveaux venus sur le site Internet contribue à tirer vers le bas. Rappelons en effet que 29% des répondants déclaraient se ...
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Abrupt GaP/Si hetero-interface using bistepped Si buffer
... Evaluating the cleanliness of a chemical preparation is not straightforward. Fortunately, the CVD technique is dra- matically sensitive to substrate surface contamination. Even low contaminant density results in a rough ...
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Expanding the repertoire of molecular linkages to silicon: Si–S, Si–Se, and Si–Te Bonds
... through Si−O, Si−S, Si−Se, Si−Te, and Si− N bonds as well as SiX (X = halide) coverage were examined; for heavier atoms (Te versus Se versus S versus O), additional electronic states ...
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Physique pour SI
... © Ministère de l'Éducation nationale et de la Jeunesse > www.education.gouv.fr Comme tous les enseignements, ce complément aux sciences de l’ingénieur contribue au développement des compétences orales à travers ...
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Al/Fe isomorphic substitution versus Fe[subscript2]O[subscript 3] clusters formation in Fe-doped aluminosilicate nanotubes (imogolite)
... both Fe amount and synthesis procedure (Fig. 2 a, d, f, h). Fe is homoge- neously distributed, as shown by the EDS maps ...Some Fe-containing clusters at the outer surface of NTs were observed, ...
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Down-shifting Si-based layer for Si solar applications
... of Si solar cells and act simultaneously as a down-shifting layer and antire flective ...Despite Si-SC technology being currently the most used, it suffers from a low efficiency ranging from 12% to 20% ...
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EFFET DU TEMPS DE BROYAGE SUR LA FORMATION DE NANOSTRUCTURES Fe Cr Si
... d’exemple : Fe80Si10Cr10, Fe75Si10Cr15 et Fe85Si9.5 -x Al5.5Cr x ( x =0, 2, 4, 6 wt%) [3-4]Ont été élaboré par la méthode méchanosynthèse .Des lingots de Fe 87.5 -xSi 13.5Cr x (x =0, 4, 8, 12 at%) ont été ...
5
Si j'étais une géographie...
... Même des données froides comme des tableaux statistiques sont très sensibles à des changements d’échelle (régionale, communale, infracommunale). La géographie n’est pas la même, les phénomènes ne sont pas saisis de la ...
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Que diraient les animaux si...
... Mais si on réfléchit plus avant, dit Thelma Rowell, et que l’on compare les questions qu’on leur a posées, que voit-on ? Qu’on a posé aux singes des questions intelligentes, en se fondant sur le fait que, comme ...
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