Abstract

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ISO 23146:2012 specifies a method for the determination of the fracture toughness of advanced technical ceramics. The procedure makes use of single-edge V-notched bars, which are loaded in four-point bending until failure. It is applicable to monolithic ceramics with a grain size or major microstructural feature size larger than about 1 µm.

The use of ISO 23146:2012 for yttria tetragonal zirconia polycrystal material (Y-TZP) is not recommended. The method might also be unsuitable for some other very tough or soft ceramics in which a sharp crack does not form at the root of the V-notch.


General information 

  • Status
     :  Published
    Publication date
     : 2012-12
  • Edition
     : 2
    Number of pages
     : 17
  • Technical Committee
     : ISO/TC 206 Fine ceramics
  • ICS
     :
    81.060.30 Advanced ceramics

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