Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 380, Issue 1-2, Pages 215-221Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2004.03.065
Keywords
sintering; grain size; toughness and toughening; ZrO2; Y2O3
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Despite the impressive development in understanding transformation toughening, tailoring the toughness of yttria-doped zirconia ceramics remained a major challenge. In our research, a simple but innovative route based on the mixing and hot pressing (under identical conditions) of zirconia powders with varying yttria content (3 and 0 mol%) is developed to investigate this critical issue. The experimental results clearly reveal that the fracture toughness of yttria-stabilized tetragonal zirconia polycrystalline (Y-TZP) ceramics can be tailored by careful mixing of co-precipitated and yttria-free zirconia starting powders. (C) 2004 Elsevier B.V. All rights reserved.
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