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  • American Institute of Physics (AIP)  (2)
  • 1990-1994  (2)
  • 1
    Electronic Resource
    Electronic Resource
    The role of geometric considerations in the diamond-cubic boron nitride heteroepitaxial system (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 69 (1991), S. 2679-2681 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We report the methods and results of a theoretical study of the diamond-cubic boron nitride [BNcub] heteroepitaxial system. We introduce a general, geometric reciprocal space technique for evaluating candidate epitaxial configurations, and a novel system of essentially geometric criteria to order them from most to least likely to occur. In the diamond- BNcub system, it is found that low index like planes require a relatively small strain of 1.37% from bulk parameters. The unlike epitaxial configuration which pairs diamond{100} with BNcub{221} and yields two-dimensional coincidence with the same strain is favored above other low index mixed configurations. The essentially geometric nature of this epitaxial system is highlighted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.348663
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The electron-beam furnace: A new facility for materials science research (1993)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 64 (1993), S. 3620-3626 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The development and the test results of an electron-beam furnace for the later utilization in a microgravitational environment are reported. By just varying the deflection pattern by means of the electron-optical components two reference profiles, a gradient profile with a maximum slope of 220 K/cm, and a hot zone profile with a zone temperature of 1520 K could be established and maintained. A beam power of 550 W had to be applied to a sample made of massive Ta for the gradient profile, for creating a hot zone profile an input power of only 250 W onto a sample with a ceramic core was sufficient. A continuous pyrometric measurement system with a high local and time resolution has been realized. By temperature sensing of the sample with this system an intrinsic feature of electron-beam heating could be directly observed, the sharply localized energy deposition at the sample surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144239
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    Paper (German National Licenses)
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