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  • 1985-1989  (3)
  • 1975-1979  (1)
  • 1
    Electronic Resource
    Electronic Resource
    The electronic properties of plasma-deposited films of hydrogenated amorphous SiNx (0〈x〈1.2) (1986)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 59 (1986), S. 1251-1258 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We present the results of a comprehensive series of measurements on glow-discharge (plasma) -deposited silicon nitride films SiNx:H, with x in the range 0〈x〈1.2. Optical spectroscopy in the visible and infrared regions is used to investigate the nature of the bonding and to assess the role of hydrogen. With increasing x, in the range x〈0.7, an increase in the concentration of Si-H bonds results in an increase in the total hydrogen content; at higher x the rise in the N-H concentration produces a small increase in the hydrogen content, but even for these samples most of the hydrogen is bonded to silicon. The optical absorption edge due to band-gap transitions broadens with increasing x due to a change in the nature of the valence band from Si-Si bonds to N lone-pair states. Electrical conductivity at high fields and magnetic resonance measurements give information about the defects in the band gap. These results support the Robertson–Powell model in which the principal defect in the band gap of silicon nitride is the silicon dangling bond.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.336513
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Amorphous silicon: where now? (1979)
    [s.l.] : Nature Publishing Group
    Nature 277 (1979), S. 85-86 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ONE of the more extensively studied materials in solid-state research at present, certainly in the field of amorphous semiconductors, is the amorphous silicon-hydrogen alloy system. Upward of 30 laboratories around the world are now working on these materials. The reasons for all this activity are, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/277085a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Glass formation in the system PbO-PbCl2 (1985)
    Springer
    Journal of materials science 20 (1985), S. 1678-1682 
    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 The preparation of glasses in the system PbO-PbCl2 is described. The behaviour of the glass transition temperatures, heat capacities and microhardnesses as a function of glass composition has been investigated. The variations are discussed in terms of the structural features of the glasses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00555271
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Descriptive anatomy of fibrocartilaginous menisci in the finger joints of the hand (1985)
    Hoboken, NJ [u.a.] : Wiley-Blackwell
    Journal of Orthopaedic Research 3 (1985), S. 484-491 
    Details
    ISSN: 0736-0266
    Keywords: Fibrocartilage ; Anatomy ; Digital joints ; Life and Medical Sciences
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Notes: Observations were made from the dissection of 156 digital joints (thumbs excluded). In all joints fibrocollagenous menisci projected into the articular cavity from a ring-like structure based on the joint capsule. These meniscal structures separated the articulating cartilage surfaces at the margins of the joint. Histological examination confirmed a fibrocartilaginous nature of the tissue which demonstrated positive staining for proteoglycans and collagen fibers. Although generally similar in form, these meniscal structures varied in extent when compared between joint groups. The greatest amount and articular contribution was noted in metacarpophalangeal joints with least being found distally.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jor.1100030411
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