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  • 1
    Electronic Resource
    Electronic Resource
    Thermal diffusivity/conductivity in SiAlON ceramics (1995)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 77 (1995), S. 494-496 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Thermal diffusivity and conductivity of ceramic materials in a system of Si3N4-SiO2-Al2O3-AlN composed of α and β SiAlON (which is well known as duophase SiAlON ceramics) are investigated. Single-phase β-SiAlON ceramic has a thermal conductivity of 12.44 W/m K. The thermal conductivities of SiAlON ceramics decrease linearly with increasing content of α phase and can be best described by the following equation: K=12.46–0.043 f, where f is the weight percentage of α-SiAlON content and K is the thermal conductivity of SiAlON ceramics. The thermal conductivity of single-phase α-SiAlON was then estimated to be ∼8.16 W/m K, which is in excellent agreement with the literature reported values, ∼8.4 W/m K. This estimation is also close to the value, 8.22 W/m K, obtained by using Bruggeman's variable dispersion theory. The temperature dependence of the thermal conductivity of duophase SiAlON ceramics varies with α and β phase contents in the materials. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.359030
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  • 2
    Electronic Resource
    Electronic Resource
    Single Scattering of Fast β-Particles by Protons (1946)
    [s.l.] : Nature Publishing Group
    Nature 158 (1946), S. 753-753 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WE have recently taken some eight hundred pairs of photographs corresponding to about 124 metres of track of β-particles, of energies from 0.5 to 1.1 mV., in a mixture of 80 per cent hydrogen and 20 per cent oxygen, contained in an expansion chamber. Assuming that the scattering of the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/158753a0
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  • 3
    Electronic Resource
    Electronic Resource
    Synthese von Furan-Derivaten, XVIII. Notiz über die Synthese von 4-Oxo-octahydro-dibenzofuran (1959)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 92 (1959), S. 998-999 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19590920436
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