% 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{Zhang:642084,
      author       = {Zhang, Li and Wang, Jie and Wu, Ligang and Zhao, Yuantao
                      and Liu, Yahui and Huang, Meng and Chen, Zhibin and Zhu,
                      Gaoming and Zeng, Xiaoqin},
      title        = {{T}emperature-dependent thermal conductivity and
                      microscopic mechanisms in a {M}g-{A}l-{Y} alloy},
      journal      = {Journal of rare earths},
      volume       = {NN},
      issn         = {1002-0721},
      address      = {Beijing},
      publisher    = {[Verlag nicht ermittelbar]},
      reportid     = {PUBDB-2025-05346},
      pages        = {NN},
      year         = {2025},
      note         = {OnlineFirst VDB},
      abstract     = {Products designed for heat dissipation are often operated
                      in elevated temperature environments. Therefore,
                      understanding the microstructural variations, affected by
                      heat treating processes, on thermal behavior at elevated
                      temperatures is essential for the advancement of heat
                      dissipation applications. Nevertheless, the temperature
                      effect on thermal conductivity of magnesium alloys with
                      different microstructures remains unclear. This study
                      introduces an “intermetallic + α-Mg” two-phase model to
                      clarify these effects in a Mg-7.28Al-0.13Y-0.11Mn (AW70)
                      alloy. The thermal conductivity of as-solutionized AW70
                      alloy is 55.1 W/(m·K) at ambient temperature, and increases
                      to 68.2 W/(m·K) after aging, due to precipitation that
                      reduces lattice distortion. As temperature rises, the
                      thermal conductivity, in both solutionized and aged states,
                      generally increases owing to consistent electron scattering
                      by static lattice defects. The thermal conductivity of
                      solutionized and aged AW70 alloy at 250 °C is about 79.2
                      and 91.2 W/(m·K) respectively, reflecting increase of 24.8
                      W/(m·K) $(45.6\%)$ and 22.2 W/(m·K) $(32.3\%)$ compared to
                      the values measured at 25 °C. Both the solutionized and
                      aged alloys exhibit a stable thermal conductivity increase
                      rate (0.11 W/(m·K2)) below 250 °C, demonstrating a
                      remarkable independence from variations in solute content
                      and precipitates. Within the temperature range of 250–350
                      °C, the as-aged alloy shows a temporary decline in thermal
                      conductivity, attributed to the dissolution of the Mg17Al12
                      precipitates into the α-Mg matrix. This research fills a
                      gap in current understanding, while also sets the stage for
                      further explorations in manipulating thermal properties of
                      Mg alloys.},
      cin          = {FS DOOR-User / Hereon},
      ddc          = {610},
      cid          = {$I:(DE-H253)FS_DOOR-User-20241023$ /
                      I:(DE-H253)Hereon-20210428},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3)},
      pid          = {G:(DE-HGF)POF4-6G3},
      experiment   = {EXP:(DE-H253)P-P21.2-20150101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1016/j.jre.2025.08.014},
      url          = {https://bib-pubdb1.desy.de/record/642084},
}