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@ARTICLE{Stahlkopf:646216,
      author       = {Stahlkopf, G. and Passing, M. and Puszkiel, Julian and
                      Moosmann, J. and Beckmann, F. and Warfsmann, Jan and Karimi,
                      F. and Kulvait, Vojtech and Klassen, T. and Jepsen, Julian},
      title        = {{I}nsights on mechanical and morphological metal hydride
                      powder characteristics during hydrogen interaction and
                      stress mitigation strategies for hydrogen storage vessels},
      journal      = {International journal of hydrogen energy},
      volume       = {215},
      issn         = {0360-3199},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {PUBDB-2026-00761},
      pages        = {153776},
      year         = {2026},
      note         = {Funding: Bundesministerium für Wirtschaft und Klimaschutz
                      in the frame of the “HyReflexS “project (Funding code:
                      03El3020A and 03EI3020C); project Digi-HyPro, funded by
                      dtec.bw – Digitalization and Technology Research Center of
                      the Bundeswehr, which is financed by the European Union –
                      NextGenerationEU.},
      abstract     = {Interstitial metal hydride alloys exhibit significant
                      volume changes between the hydrogenated and dehydrogenated
                      states during cycling, resulting in macroscopic stresses in
                      powder beds that must be considered in tank design.
                      Interactions are complex, and these stresses are primarily
                      influenced by the local particle size distribution (PSD) and
                      packing density. This study examines radial expansion forces
                      in vertical storage containers using AB 2 - type hydride
                      alloys and synchrotron-radiation micro-computed tomography
                      (SRμCT). Up to 50 cycles, progressive particle
                      decrepitation occurs, with densification in the lower layers
                      reaching a $91\%$ packing density. This results in local
                      pressures of up to 605 bar in the hydrogenated state. A new
                      empirical equation links packing density to exponentially
                      increasing stress. Experiments have shown that optimized
                      PSDs can reduce stress by up to $45\%$ and increase storage
                      capacity by $87\%$ within the same tank volume.},
      cin          = {Hereon / DOOR ; HAS-User},
      ddc          = {620},
      cid          = {I:(DE-H253)Hereon-20210428 / I:(DE-H253)HAS-User-20120731},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3) / FS-Proposal: I-20230862
                      (I-20230862)},
      pid          = {G:(DE-HGF)POF4-6G3 / G:(DE-H253)I-20230862},
      experiment   = {EXP:(DE-H253)P-P07-20150101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1016/j.ijhydene.2026.153776},
      url          = {https://bib-pubdb1.desy.de/record/646216},
}