Title

Have Leveraged And Traditional Etfs Impacted The Volatility Of Real Estate Stock Prices?

Abstract

Metallic uranium alloy fuels cladded in stainless steel are being examined for fast reactors that operate at high temperature. In this work, solid-to-solid diffusion couples were assembled between pure U and Fe, and annealed at 853 K, 888 K and 923 K where U exists as orthorhombic α, and at 953 K and 973 K where U exists as tetragonal β. The microstructures and concentration profiles developed during annealing were examined by scanning electron microscopy and electron probe microanalysis, respectively. U 6Fe and UFe 2 intermetallics developed in all diffusion couples, and U 6Fe was observed to grow faster than UFe 2. The interdiffusion fluxes of U and Fe were calculated to determine the integrated interdiffusion coefficients in U 6Fe and UFe 2. The extrinsic (K I) and intrinsic growth constants (K II) of U 6Fe and UFe 2 were also calculated according to Wagner's formalism. The difference between K I and K II of UFe 2 indicate that its growth was impeded by the fast-growing U 6Fe phase. However, the thin UFe 2 played only a small role on the growth of U 6Fe as its K I and K II values were determined to be similar. The allotropic transformation of uranium (orthorhombic α to tetragonal β phase) was observed to influence the growth of U 6Fe directly, because the growth rate of U 6Fe changed based on variation of activation energy. The change in chemical potential and crystal structure of U due to the allotropic transformation affected the interdiffusion between U and U 6Fe. Faster growth of U 6Fe is also examined with respect to various factors including crystal structure, phase diagram, and diffusion. © 2012 Elsevier B.V. All rights reserved.

Publication Date

5-1-2012

Publication Title

Applied Financial Economics

Volume

22

Issue

1-3

Number of Pages

709-722

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1080/09603107.2011.624080

Socpus ID

84863418057 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84863418057

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