% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Uchida:206066,
      author       = {Uchida, H. T. and Wagner, S. and Hamm, M. and Kürschner,
                      J. and Kirchheim, R. and Hjörvarsson, B. and Pundt, A.},
      title        = {{A}bsorption kinetics and hydride formation in magnesium
                      films: {E}ffect of driving force revisited},
      journal      = {Acta materialia},
      volume       = {85},
      issn         = {1359-6454},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PUBDB-2015-00599},
      pages        = {279 - 289},
      year         = {2015},
      abstract     = {Electrochemical hydrogen permeation measurements and in
                      situ gas-loading X-ray diffraction measurements were
                      performed on polycrystalline Mg films. Hydrogen diffusion
                      constants, the hydride volume content and the in-plane
                      stress were determined for different values of driving
                      forces at 300 K. For α-Mg–H, a hydrogen diffusion
                      constant of View the MathML sourceDHMg=7(±2)·10-11 m2
                      s−1 was determined. For higher concentrations, different
                      kinetic regimes with reduced apparent diffusion constants
                      View the MathML sourceDHtot were found, depending on the
                      driving force, decreasing to about View the MathML
                      sourceDHtot = 10−18 m2 s−1. This lowest measured
                      diffusion constant is two orders of magnitude larger than
                      that of bulk β-MgH2, and the difference is ascribed to a
                      contribution from a fast diffusion along grain boundaries.
                      The different kinetics regimes are attributed to the spatial
                      distribution of hydrides. A heterogeneous hydride nucleation
                      and growth model is suggested that is based on hemispherical
                      hydrides spatially distributed according to the nuclei
                      densities expressed as a function of the driving force. The
                      model allows us to qualitatively explain the complex stress
                      development, the different diffusion regimes and the
                      blocking-layer thickness. As the blocking-layer thickness
                      inversely scales with the driving force, small driving
                      forces allow the hydriding of large film volume fractions.
                      Maximum stress situations occur for hydride distances
                      reaching four times the hydride radius and for hydride
                      distances equaling the film thickness.},
      cin          = {DOOR},
      ddc          = {670},
      cid          = {I:(DE-H253)HAS-User-20120731},
      pnm          = {6G3 - PETRA III (POF3-622) / FS-Proposal: II-20100323 EC
                      (II-20100323-EC) / FS-Proposal: I-20120283 (I-20120283)},
      pid          = {G:(DE-HGF)POF3-6G3 / G:(DE-H253)II-20100323-EC /
                      G:(DE-H253)I-20120283},
      experiment   = {EXP:(DE-H253)D-B2-20150101 / EXP:(DE-H253)P-P08-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000348956800028},
      doi          = {10.1016/j.actamat.2014.11.031},
      url          = {https://bib-pubdb1.desy.de/record/206066},
}