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@ARTICLE{Rttger:19834,
      author       = {Röttger, A. and Weber, S. and Theisen, W. and Rajasekeran,
                      B. and Vassen, R.},
      title        = {{M}echanical properties of thermally sprayed {F}e based
                      coatings},
      journal      = {Materials science and technology},
      volume       = {27},
      issn         = {0267-0836},
      address      = {London [u.a.]},
      publisher    = {Maney Publishing},
      reportid     = {PreJuSER-19834},
      pages        = {973 - 982},
      year         = {2011},
      note         = {The authors gratefully acknowledge financial support by the
                      Deutsche Forschungsgemeinschaft within the project
                      'Thermisches Spritzen von Fe-Basis MMC' (DFG project no.
                      TH531/6-1; VA163/4-1).},
      abstract     = {The synthetic vanadinites (Pb(x)Ca(10-x))(VO4)6F2delta, 1 <
                      x < 9, adopt a P6(3)/m apatite structure with 9.7590 (1) <
                      or = a < or = 10.1179 (1) A and 7.0434 (3) < or = c < or =
                      7.4021 (1) A. The partitioning of calcium and lead over the
                      AI(4f) and AII(6h) positions is nonstoichiometric with lead
                      preferentially entering the larger AII site. High-resolution
                      electron microscopy showed that samples annealed for 10 h at
                      1073 K are in disequilibrium with calcium- and lead-rich
                      microdomains co-existing at unit-cell scales. For
                      (Pb5Ca5)(VO4)6F2delta, sintering in excess of 2 weeks is
                      required for the metals to order macroscopically. As
                      annealing progresses, c/a, the partitioning coefficient
                      kPb(AI/AII) and the AIO6 metaprism twist angle (phi) adjust
                      cooperatively to enlarge the apatite channel, and thereby
                      accommodate higher lead content. These results demonstrate
                      that phi is a sensitive measure of disequilibrium and a
                      useful device for monitoring changes in apatite topology as
                      a function of composition.},
      keywords     = {J (WoSType)},
      cin          = {IEK-1},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {Rationelle Energieumwandlung},
      pid          = {G:(DE-Juel1)FUEK402},
      shelfmark    = {Materials Science, Multidisciplinary / Metallurgy $\&$
                      Metallurgical Engineering},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:15017085},
      UT           = {WOS:000291551000001},
      doi          = {10.1179/1743284710Y.0000000002},
      url          = {https://juser.fz-juelich.de/record/19834},
}