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  • 1
    Electronic Resource
    Electronic Resource
    Chaotic oscillation of a bubble in a weakly viscous dielectric fluid under electric fields (2001)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 13 (2001), S. 2820-2830 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The dynamics of a bubble in a weakly viscous dielectric fluid under electric fields is studied. The dynamical equations for the volume and shape mode oscillations are derived using the domain perturbation method with first-order accuracy in deformation. For the volume mode oscillation, we obtain the modified Rayleigh–Plesset equation which includes a forcing term due to the effect of electric field. For the shape mode oscillations, the Prosperetti–Seminara equation [Phys. Fluids 21, 1465 (1978)] is also extended. The dynamical equations are analyzed with two types of electric fields: the uniform field and the axisymmetric straining field. Equilibrium analysis is performed to find the equilibrium points in the phase planes and their stabilities in static electric fields. Then, the effects of time-periodic electric fields on the bubble dynamics are considered at two levels of viscosity effect [the inviscid limit and the case of Re=O(10)]. The nonlinear dynamics theory is used for analysis of the complicated volume and shape mode oscillations. © 2001 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1400135
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  • 2
    Electronic Resource
    Electronic Resource
    The Final Member of an Isologous Series of Arenetricarbonyl Complexes: [W(η6-C6H6)(CO)3] (1998)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 54 (1998), S. 581-583 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270197009955
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  • 3
    Electronic Resource
    Electronic Resource
    Morphology of corrosion products formed on cobalt and nickel in argon-oxygen-chlorine mixtures at 1000 K (1982)
    Springer
    Oxidation of metals 17 (1982), S. 371-389 
    Details
    ISSN: 1573-4889
    Keywords: Mixed oxidation ; chlorine ; morphology ; cobalt ; nickel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The morphology of corrosion products formed on cobalt and nickel in argonoxygen-chlorine mixtures at 1000 K have been examined using optical microscopy, scanning electron microscopy, and X-ray diffraction. The corrosion products formed under conditions where the oxides are thermodynamically stable consist of porous oxides containing little or no chlorine. This morphology is consistent with a corrosion mechanism involving vapor phase transport of volatile metal chlorides.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00742118
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  • 4
    Electronic Resource
    Electronic Resource
    Oxidation behavior of Mn and Mo alloyed Fe-16Ni-(5-8)Cr-3.2Si-1.0Al (1990)
    Springer
    Oxidation of metals 33 (1990), S. 157-176 
    Details
    ISSN: 1573-4889
    Keywords: Fe-Ni-G-Al-S ; alloys ; Mo and Mn additions ; oxidation ; chromic scales
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Oxidation tests were conducted on a master alloy, Fe-16Ni-(5–8)Cr-3Si-lA1, to which (0–4) wt/o pct Mn and/or Mo were added. Tests were conducted at temperatures ranging from 1073–1273 K for times up to 1000 hr. Additions of Mn resulted in formation of a dual oxide structure and decreased oxidation protection. Addition of Mo significantly improved oxidation protection by formation of an intermetallic Fe(Mo)Si precipitate that eventually formed a protective SiO2 oxide sublayer. Increasing the Cr concentration in an alloy containing both Mn and Mo resulted in a slight increase in weight gain. To first order, the apparent oxidation activation energy for all the alloys was nearly constant, 121 kJ/mol, suggesting that the same mechanism controlled the oxidation for all compositions. The oxidation protection was related to the alloy components and concentration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00665674
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    Paper (German National Licenses)
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