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@ARTICLE{Wakui:57566,
      author       = {Wakui, T. and Malzbender, J. and Steinbrech, R. W.},
      title        = {{M}echanical testing of thermally stressed materials with
                      rough interfaces: mechanically induced delamination cracking
                      in thermal barrier composites},
      journal      = {Surface and coatings technology},
      volume       = {200},
      issn         = {0257-8972},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PreJuSER-57566},
      year         = {2006},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Interfacial fracture of thermally stressed layered
                      composites is often characterized by application of a
                      mechanical load. Here a novel mechanical testing method was
                      applied to study the delamination of thermal barrier
                      composites. With a geometry similar to the double cantilever
                      beam compressive loading was transferred into tensile stress
                      normal to the average location of the interfaces. As-sprayed
                      and annealed composites were tested. Fracture relevant
                      microstructural changes and crack growth in the top coat and
                      at the interface between bond coat and top coat were
                      monitored using scanning electron microscopy. The local
                      strain situation was determined via the analysis of the
                      image contrast. Finite element modeling was used to
                      illustrate the effect of the interface roughness on the
                      failure origin. Similar as reported in literature for
                      thermal loading, mechanical loading of a rough interface
                      causes high stresses in interfacial roughness peaks and
                      valleys. However, contrary to thermal loading, the position
                      of the maximum in tensile and compressive stress is
                      independent of the existence of a thermally grown oxide.
                      Implications for the mechanical and then-no-mechanical
                      testing of layered composites are discussed. (c) 2005
                      Elsevier B.V. All rights reserved.},
      keywords     = {J (WoSType)},
      cin          = {IWV-2},
      ddc          = {620},
      cid          = {I:(DE-Juel1)VDB2},
      pnm          = {Rationelle Energieumwandlung},
      pid          = {G:(DE-Juel1)FUEK402},
      shelfmark    = {Materials Science, Coatings $\&$ Films / Physics, Applied},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000236648800030},
      doi          = {10.1016/j.surfcoat.2005.07.002},
      url          = {https://juser.fz-juelich.de/record/57566},
}