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  • 27.50.+e  (3)
  • Polymer and Materials Science  (2)
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  • 1
    ISSN: 1434-601X
    Keywords: 21.60.Cs ; 23.20.Lv ; 25.70.Jj ; 27.50.+e
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The reaction58Ni(36Ar,α qρ)88Mo has been studied at 145 MeV beam energy. A detector array consisting of the OSIRIS spectrometer, four charged-particleΔE detectors and seven NE213 neutron detectors has been used to meaure the gamma radiation inγγ- and particle-γγ-coincidence mode. The level scheme of88Mo has been extended up to 11.6 MeV excitation energy and probable spin 23ħ; some 70 transitions and 40 levels have been identified. Spin assignments have been proposed on the basis of measured DCO ratios. Hartree Fock cranking calculations of the Total Routhians and shell model calculations of the high spin states are presented which imply near-sphericity of the yrast line up to the highest spins found. A classification of the high spin states according to their leading seniority is proposed.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-601X
    Keywords: 21.60.Cs ; 23.20.Lv ; 27.50.+e
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Particle-γ andγ-coincidences of the reaction58Ni(36Ar, 4pn)89Mo have been used to gain more information about high spin states in89Mo and to establish the yrast sequence up to 7.6 MeV excitation energy and probable spin 37/2 ħ. Spins and parities were assigned on the basis of DCO-ratios measured with the OSIRIS spectrometer and a large volume Ge detector placed at 162° to the beam. Furthermore, aγ-ray angular distribution experiment was carried out using the reaction58Ni(35Cl, 3pn)89Mo. As in the neighboring isotopes88Mo and90Mo, the positive-parity high-spin states can be grouped into shell model multiplets characterized by increasing seniorities of proton particles and neutron holes in the 1g9/2 shell. The negative-parity states can be explained with one nucleon moving in thep 1/2 orbit. The energies and wave functions of these states have been deduced by means of the shell model code RITSSCHIL. The 2584 keV (21/2+) is an isomeric state the mean life of which has been estimated from delayedγγ-coincidences.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1434-601X
    Keywords: 21.60.Cs ; 27.50.+e
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Excited states in the nucleus89Tc have been identified for the first time by measuring evaporated particle-γγ-coincidences via the fusion reaction58Ni +36Ar at 149 MeV. Nine γ-ray transitions built upon the (9/2+) ground state have been found, reaching up to a probable spin of (33/2+) at 5.3MeV excitation energy. The levels are interpreted with the shell model.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 21 (1970), S. 457-462 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Basic processes with the corrosion of metals in organic solvents (11)Research has been carried out into the corrosion mechanism of Zn, Fe and Ni in anhydrous primary alcohols of different chain lengths. The results can be explained from an analogy to aqueous solutions although the chain length of the plays an important part. With the corrosion of iron in the multi-components system heptane-ethanol-HCl(H2SO4)-O2, a phase segregation can be observed which leads to processes similar to atmospheric corrosion. The destruction of the metal is due to a strongly acid solution phase deposited on the surface, governed by an electrolytic mechanism. The practice Of corrosion testing and corrosion Protection can be based on the Principles and methods conventionally used for corrosion in aqueous media.
    Notes: Der Mechanismus der Korrosion won Zn, Fe und Ni in HCl-haltigen wasserfreien, primären Alkoholen verschiedener Kettenlänge wird untersucht. Die Resultate können aus der Analogie zu wäßrigen Lösungen erklärt werden, wobei jedoch die Kettenlänge des Alkohols eine wichtige Rolle spielt. Bei der Eisenkorrosion im Mehrkomponentensystem Heptan-Äthanol-HCl(H2SO4)-O2 läß;t sich eine Phasentrennung beobachten, die zu ähnlichen Prozessen wie bei der atmosphärischen Korrosion führt. Die Zerstörung des Metalls erfolgt aus einer auf der Oberfläche stark Sauren Lösungsphase nach einem elektrolytischen Mechanismus. Die Praxis der Korrosionsprüfung und des Korrosionsschutzes kann sich auf die aus dem Gebiet der Korrosion in wäß;rigen Medien erprobten Prinzipien und Methoden stützen.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Chemie Ingenieur Technik - CIT 63 (1991), S. 253-255 
    ISSN: 0009-286X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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