@Article{NonoSilNonPioMin:2016:DiTZZi,
               author = "Nono, Daniel Alessander and Silva, Eron Fernandes and Nono, Maria 
                         do Carmo de Andrade and Piorino Neto, F. and Mineiro, S{\'e}rgio 
                         Luiz",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto de Aeron{\'a}utica e 
                         Espa{\c{c}}o (IAE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "Comparative analysis of fracture toughness obtained by different 
                         techniques in alumina matrix - Dispersed TZP zirconia composites",
              journal = "Materials Science Forum",
                 year = "2016",
               volume = "869",
                pages = "46--51",
                 note = "Brazilian Conference on Materials Science and Engineering, 21. 
                         (CBECIMAT), Cuiab{\'a} MT, 9-13 Nov. 2014.",
             keywords = "Alumina-zirconia TZP, Fracture toughness vickers, Mechanical 
                         shielding, SEVNB.",
             abstract = "The fracture toughness is one of the requirements for mechanical 
                         properties of materials for use in satellites. The ceramic TZP 
                         zirconia (tetragonal zirconia polycrystals) have been investigated 
                         for applications in ballistic armor. Due to the chemical inertness 
                         and fracture toughness, this material has the potential to act as 
                         a screen against impacts of micrometeorites and space debris. The 
                         ceramic composites of alumina-zirconia 3Y-TZP (tetragonal zirconia 
                         polycrystals doped with 3 mol% ytria) are the materials with the 
                         best benefit/cost for this application. This paper presents and 
                         discusses the results obtained from the use of two techniques for 
                         determining fracture toughness. The composite alumina - 18.5% of 
                         3Y-TZP zirconia nanoparticles obtained from deflocculated powders 
                         have been tested for Vickers and the SEVNB penetration method 
                         (Single- Edge-Notch Beam V) to obtain the fracture toughness 
                         values (KIC). The KIC values obtained were analyzed due to the 
                         lower dispersion of experimental values. The SEVNB method showed 
                         better reliability in determining the toughness values in the 
                         studied ceramics.",
                  doi = "10.4028/www.scientific.net/MSF.869.46",
                  url = "http://dx.doi.org/10.4028/www.scientific.net/MSF.869.46",
                 issn = "0255-5476",
             language = "en",
        urlaccessdate = "27 abr. 2024"
}