% 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{Guenther:186583,
      author       = {Guenther, Gerrit and Theissmann, Ralf and Guillon, Olivier},
      title        = {{S}ize-{D}ependent {P}hase {T}ransformations in {B}ismuth
                      {O}xide {N}anoparticles. {II}. {M}elting and {S}tability
                      {D}iagram},
      journal      = {The journal of physical chemistry / C},
      volume       = {118},
      number       = {46},
      issn         = {1932-7455},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2015-00656},
      pages        = {27020 - 27027},
      year         = {2014},
      abstract     = {Melting of nanocrystalline bismuth oxide particles between
                      6 and 50 nm was investigated in situ in the transmission
                      electron microscope (TEM). It revealed a size-dependent
                      melting behavior with a strong melting point reduction
                      $(−55\%$ at 6 nm). One reason is a −230 K offset in the
                      bulk melting temperature which is apparently caused by the
                      β-phase in which the nanomaterial resides. As a second
                      reason, a strong size dependency was observed from which an
                      approximate solid-surface energy of 0.3 J/m2 was determined.
                      Yet, the conditions in the TEM could cause a lowering of the
                      transition temperatures compared to chemically neutral
                      conditions, although theoretical considerations predict
                      reduction in the solid state to be negligible. Everything
                      indicates that no stable, liquid surface layer forms prior
                      to melting. In spite of the covalent-ionic bonds in this
                      oxide material the qualitatively same size dependence shows
                      like in metals. Combined with size-dependent evaporation
                      examined in a companion study},
      cin          = {IEK-1},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {899 - ohne Topic (POF2-899)},
      pid          = {G:(DE-HGF)POF2-899},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000345474000069},
      doi          = {10.1021/jp509841s},
      url          = {https://juser.fz-juelich.de/record/186583},
}