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@ARTICLE{Guo:32010,
      author       = {Guo, X.},
      title        = {{R}oles of alumina in zirconia for functional applications},
      journal      = {Journal of the American Ceramic Society},
      volume       = {86},
      issn         = {0002-7820},
      address      = {Oxford [u.a.]},
      publisher    = {Wiley-Blackwell},
      reportid     = {PreJuSER-32010},
      pages        = {1867 - 1873},
      year         = {2003},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The Al2O3 addition to stabilized ZrO2 has been studied for
                      more than 20 years. In this article, literature and new
                      results on the positive and negative effects of Al2O3
                      additions on the electrical properties of ZrO2 are
                      summarized and analyzed. In particular, a comprehensive
                      grain-boundary conduction model is proposed. The Al2O3
                      addition always increases the bulk resistivity, mainly
                      because of the formations of defect associates and
                      insulating Al2O3 second-phase particles. The Al2O3 addition
                      within the solubility limit increases the grain-boundary
                      resistivity, as a result of increased grain-boundary
                      space-charge potential; the Al2O3 addition above the
                      solubility limit, however, scavenges the silicon-rich second
                      phase from the grain boundaries, thereby decreasing the
                      grain-boundary resistivity.},
      cin          = {IFF-EKM},
      ddc          = {660},
      cid          = {I:(DE-Juel1)VDB35},
      pnm          = {Kondensierte Materie},
      pid          = {G:(DE-Juel1)FUEK242},
      shelfmark    = {Materials Science, Ceramics},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000186515700007},
      doi          = {10.1111/j.1151-2916.2003.tb03574.x},
      url          = {https://juser.fz-juelich.de/record/32010},
}