Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Fast deposition of amorphous hydrogenated carbon films using a supersonically expanding arc plasma (1990)
    Springer
    Plasma chemistry and plasma processing 10 (1990), S. 49-69 
    Details
    ISSN: 1572-8986
    Keywords: Plasma deposition ; amorphous hydrogenated carbon ; supersonic expansion ; cascaded arc ; ellipsometry ; chemical reaction rate equation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Technology
    Notes: Abstract Experiments concerning the growth rate and quality of an amorphous hydrogenated carbon film deposited in a reactor based on the supersonic expansion of an arc plasma are reported. In order to be able to calculate the deposition rate, an existing flow model has been completed with chernical reaction rate equations. The methane gas that is injected in the arc appears to be dissociated and ionized completely. The calculated deposition rates agree well with the experimental values obtained within-situ ellipsometry. The growth rates are an order of magnitude larger than those reported in the literature. Still, the film quality, expressed in terms of refractive index, optical bandgap, and hardness, is similar to those obtained by other authors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01460447
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Diatom assemblages in surface sediments along the east coast of Lake Tanganyika (2000)
    Springer
    Hydrobiologia 436 (2000), S. 59-71 
    Details
    ISSN: 1573-5117
    Keywords: Lake Tanganyika ; surface sediments ; diatoms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Surface sediment diatoms from the east coast of Lake Tanganyika were analysed using ordination and classification techniques, and compared with assemblages previously described from the northern part of the lake. Grain-size analyses were performed on subsamples. Four groups of diatom assemblages were recognised. The first group clusters samples taken in the north, far from the Rusizi river mouth. The second group comprises samples taken on silty sediment along the Tanzanian coast, including one sample taken near the mouth of the Malagarazi river and those from the northernmost part of the lake. The third group comprises surface sediments along the Burundian coast (near Ramba and Magara), and the fourth is characterised by epipsammic taxa. A sample taken near the central arm of the Malagarazi river is included in the latter group. The impact of small rivers on the diatom assemblages in the surface sediments is restricted to the mouth area.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026533804130
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...