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@PHDTHESIS{Kucharczyk:50673,
      author       = {Kucharczyk, Pawel},
      title        = {{Q}ualifizierung von {P}olysiloxanen für die
                      langzeitstabile {K}onditionierung radioaktiver {A}bfälle},
      volume       = {4195},
      issn         = {0944-2952},
      school       = {Techn. Hochsch. Aachen},
      type         = {Dr. (FH)},
      address      = {Jülich},
      publisher    = {Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag},
      reportid     = {PreJuSER-50673, Juel-4195},
      series       = {Berichte des Forschungszentrums Jülich},
      pages        = {IV, 152 p.},
      year         = {2005},
      note         = {Record converted from VDB: 12.11.2012; Aachen, Techn.
                      Hochsch., Diss., 2005},
      abstract     = {At present German policy envisages interim storage of all
                      radioactive waste (for approximately 30 years) until a final
                      repository is available. This therefore leads to higher
                      standards for storage containers. Silicone elastomers
                      (polysiloxanes), materials on the basis of silicon and
                      oxygen with organic substituents, have various physical and
                      chemical properties and seem to be suitable for the
                      long-term storage of low- and intermediate-level radioactive
                      waste. The aim of the present work is the qualification of a
                      new coating material for storage containers. The use of
                      polysiloxanes in other applications was also investigated.
                      An important criterion for the coating is the simplicity of
                      its application. Moreover, it should also have a high
                      adhesion on steel as well as providing protection against
                      corrosion. These properties were investigated for different
                      polysiloxanes. The spraying tests showed that polysiloxane
                      material with a viscosity of up to 45000 mPas could be
                      applied by the airless spraying method. An elastic coating
                      was produced which could ensure protection against
                      mechanical impacts. In the framework of water vapour
                      experiments, a very high diffusion constant was determined.
                      The corrosion test confirmed that the polysiloxane coating
                      provided only insufficient corrosion protection if the
                      sample was in contact with water and water vapour at the
                      same time. This problem was solved by using an additional
                      priming coat of 60 $\mu$m zinc paint. The adhesion test
                      showed that polysiloxanes have different levels of adhesion.
                      The best adhesion was determined for condensation-cured
                      silicones. The addition-cured materials had a lower
                      adhesion, which was improved by the application of a priming
                      coat. The outcome of these investigations is a wide spectrum
                      of applications for polysiloxanes which can be used as
                      firmly adhering coatings or removable decontamination
                      layers.},
      cin          = {ISR},
      cid          = {I:(DE-Juel1)VDB182},
      pnm          = {Nukleare Sicherheitsforschung},
      pid          = {G:(DE-Juel1)FUEK249},
      typ          = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
      url          = {https://juser.fz-juelich.de/record/50673},
}