The Peculiarities of Structure Formation and Properties of Zirconia-Based Nanocomposites with Addition of Al 2 O 3 and NiO
作者: I. DanilenkoG. LaskoI. BrykhanovaV. BurkhovetskiL. Ahkhozov
作者单位: 1Donetsk Institute for Physics and Engineering named after O.O. Galkin NAS of Ukraine
2Institute for Materials Testing, Materials Science and Strength of Materials (IMWF), University of Stuttgart
刊名: Nanoscale Research Letters, 2017, Vol.12 (1), pp.1-10
来源数据库: Springer Journal
DOI: 10.1186/s11671-017-1901-7
关键词: Zirconia compositesFracture toughnessPhase transformation
英文摘要: Abstract(#br)The present study is devoted to the problem of enhancing fracture toughness of ZrO 2 ceramic materials through the formation of composite structure by addition of Al 2 O 3 and NiO particles. In this paper, we analyzed the general and distinguished features of microstructure of both composite materials and its effect on fracture toughness of materials. In this paper, we used the XRD, SEM, and EDS methods for determination of granulometric, phase, and chemical composition of sintered materials. The peculiarities of dependence of fracture toughness values from dopant concentration and changing the Y 3+ amount in zirconia grains allow us to assume that at least two mechanisms can affect the fracture toughness of ZrO 2 ceramics. Crack bridging/deflection processes with the...
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影响因子:2.524 (2012)

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