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  • 1
    Electronic Resource
    Electronic Resource
    Properties of Boron Fiber Reinforced Aluminum Matrix Composites Fabricated by Pulsed Current Hot Pressing (PCHP) (2007)
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 539-543 (Mar. 2007), p. 3139-3144 
    Details
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Boron-fiber-reinforced Al-matrix composite was fabricated by a pulsed current hotpressing (PCHP) process at a pressure of 32MPa for 600s. It was found that the boron fiber andthe Al-matrix were well bonded when the PCHP process was performed at a holding temperature of773K. No interfacial reaction layer was observed along the interface between the boron fiber andthe matrix when PCHP was done at 773K for 600s. Tensile deformation carried out at roomtemperature for the composite showed that the tensile yield stress increased with increasing volumefraction of the boron fiber in the composite. The composite with 17.2 vol.% of boron fiberpresented a tensile yield stress of 600MPa. This value was about 90% the yield stress estimated bya force equilibrium equation of a composite taking into account the direction of fiber axis
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.3139.pdf
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  • 2
    Electronic Resource
    Electronic Resource
    Radioactivation of structural material of the superconducting magnet for a fusion reactor (1983)
    Springer
    Journal of fusion energy 3 (1983), S. 241-251 
    Details
    ISSN: 1572-9591
    Keywords: radioactivation ; dose rate ; gamma rays ; fusion reactor ; FER ; structural materials ; superconducting magnet ; 316 SS ; steel alloy ; Co-60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Radioactivation of five types of candidate steel alloys for the structural materials of superconducting toroidal field coils (TFC) of a D-T fusion reactor has been comparatively studied. As a result, the use of a high Mn steel in place of 316 SS is shown to reduce the dose rate at the He vessel of the TFC to ∼ 1/3 the value with 316 SS at 1 day after shutdown, and to ∼ 1/1000 at 10 years after shutdown. These reductions are mostly caused by the 0.28 wt% Co assumed to be included in 316 SS but none in the high Mn steel. Newly defined dose rate sensitivities of constituent elements are shown to be useful in identifying the cause of dose rate change brought on by the steel composition change. They can also be utilized in estimating the dose rate change brought on by the replacement of 316 SS with any new steel alloy with similar composition.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01058239
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  • 3
    Electronic Resource
    Electronic Resource
    Production and properties of rapidly solidified Al-4.5% Cu alloy powder by the rotating-water-atomization process (1985)
    Springer
    Journal of materials science 20 (1985), S. 2148-2158 
    Details
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Rapidly solidified Al-4.5 wt% Cu powder was produced by the rotating-water-atomization process recently developed by the authors. The particles were not spherical but tear-drop shape. The mean particle size of the powder decreased with increasing rotational speed of the drum and with decreasing nozzle diameter. The dendrite arm spacing of the particles produced was in the range 0.6 to 2.8μm. The cooling rate was estimated to range from 103 to 5×105 K sec−1. Recrystallization of hot extruded powder material after T6 treatment was remarkably suppressed in the central part, while large fully recrystallized grains were obtained in the cast material extruded under the same conditions. Tensile strength of the powdered material extruded in the range 573 to 723 K was slightly higher than the extruded cast material with little loss in elongation. The surface oxidation was not deleterious to elongation but it was very effective in suppressing recrystallization.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01112299
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    Paper (German National Licenses)
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