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@ARTICLE{Viani:821021,
      author       = {Viani, Alberto and Sotiriadis, Konstantinos and Šašek,
                      Petr and Appavou, Marie-Sousai},
      title        = {{E}volution of microstructure and performance in magnesium
                      potassium phosphate ceramics: {R}ole of sintering
                      temperature of {M}g{O} powder},
      journal      = {Ceramics international / Ci news},
      volume       = {42},
      number       = {14},
      issn         = {0272-8842},
      address      = {Faenza},
      publisher    = {Ceramurgia73399},
      reportid     = {FZJ-2016-06278},
      pages        = {16310 - 16316},
      year         = {2016},
      abstract     = {The reactivity of the MgO powder employed in the
                      formulation of Mg–K phosphate ceramics can be modulated
                      through the calcination temperature of MgCO3 source
                      material, which has a direct impact on production costs.
                      Upon annealing, MgO undergoes sintering, and in order to
                      optimize the design of products for applications, it is of
                      primary importance to disclose the link between the
                      sintering temperature, reaction mechanisms, microstructure
                      and performance in this class of ceramics. Small angle
                      neutron scattering was used to measure the specific surface
                      area of pores in samples aged 30 days produced with 5
                      different MgO powders, and to follow the evolution of pore
                      size distribution during the setting reaction, in a
                      time-resolved experiment. Quantification of amorphous and
                      crystalline fraction up to 28 days was accomplished in
                      synchronous with flexural strength tests. Results indicate
                      that mechanical properties improve thanks to the progressive
                      buildup of a pervasive network of tabular crystals filling
                      the entire volume. Increasing the sintering temperature
                      above 1500 °C yields a more compact ceramic, with less, but
                      larger, pores, containing more crystalline fraction and less
                      amorphous. This is consistent with the recently proposed
                      mechanisms describing the ceramic setting reaction. The
                      analysis of the fractured surface suggests that strength
                      might be effectively improved modifying the density and
                      orientation of crystals in the ceramic volume, a way for
                      engineering new tailor-made ceramics.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1},
      ddc          = {670},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {6G15 - FRM II / MLZ (POF3-6G15) / 6G4 - Jülich Centre for
                      Neutron Research (JCNS) (POF3-623)},
      pid          = {G:(DE-HGF)POF3-6G15 / G:(DE-HGF)POF3-6G4},
      experiment   = {EXP:(DE-MLZ)KWS2-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000382269800158},
      doi          = {10.1016/j.ceramint.2016.07.182},
      url          = {https://juser.fz-juelich.de/record/821021},
}