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@ARTICLE{Lu:911136,
      author       = {Lu, Kimbal T. and Zhang, Yingjie and Wei, Tao and Murphy,
                      Gabriel and Bhuiyan, Aurpa and Scales, Nicholas and Zheng,
                      Rongkun},
      title        = {{L}n{UO}4‐based glass–ceramic composites as waste forms
                      for the immobilization of lanthanide‐bearing uranium
                      wastes},
      journal      = {Journal of the American Ceramic Society},
      volume       = {105},
      number       = {12},
      issn         = {0002-7820},
      address      = {Westerville, Ohio},
      publisher    = {Soc.},
      reportid     = {FZJ-2022-04452},
      pages        = {7697 - 7709},
      year         = {2022},
      abstract     = {We report a comprehensive study on lanthanide
                      monouranate–based glass–ceramic (GC) composites as
                      potential waste forms for the immobilization of the
                      lanthanide actinide fraction waste arising from the
                      reprocessing of spent nuclear fuel (SNF). Although the
                      crystalline LnUO4 precursor prepared via a nitrate route can
                      be well stabilized in a sodium aluminoborosilicate glass,
                      the in situ crystallization of EuUO4 in glass from oxide
                      precursors (Eu2O3 and U3O8) is rather robust with regards to
                      various processing conditions such as waste loadings,
                      ceramic-to-glass ratios, and cooling rates. Scanning
                      electron microscopy and transmission electron microscopy
                      investigations revealed the detailed microstructures, where
                      ∼1–5-μm spheres for NdUO4 and EuUO4, and ∼1–5-μm
                      rectangular crystals for DyUO4 and HoUO4 were observed in
                      residual glasses. As designed, the pentavalent uranium has
                      been confirmed by diffuse reflectance spectroscopy. Overall,
                      LnUO4-based GC composite waste forms are chemically durable,
                      offering flexible processing options with wide operating
                      windows for SNF and process waste stream management.},
      cin          = {IEK-6},
      ddc          = {660},
      cid          = {I:(DE-Juel1)IEK-6-20101013},
      pnm          = {1411 - Nuclear Waste Disposal (POF4-141)},
      pid          = {G:(DE-HGF)POF4-1411},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000832787300001},
      doi          = {10.1111/jace.18678},
      url          = {https://juser.fz-juelich.de/record/911136},
}