@Article{BighettiRiBoStMaSa:2014:ChRaEa,
               author = "Bighetti, Cau{\^e} M. M. and Ribeiro, Sebasti{\~a}o and Borges, 
                         Simone Pereira T. and Strecker, Kurt and Machado, Jo{\~a}o Paulo 
                         Barros and Santos, Claudinei",
          affiliation = "{Universidade de S{\~a}o Paulo-Escola de Engenharia de Lorena} 
                         and {Universidade de S{\~a}o Paulo-Escola de Engenharia de 
                         Lorena} and {Universidade Federal do Esp{\'{\i}}rito Santo 
                         (UFES)} and {Universidade Federal de S{\~a}o Jo{\~a}o Del Rei} 
                         and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade de S{\~a}o Paulo-Escola de Engenharia de Lorena}",
                title = "Characterization of rare earth oxide-rich glass applied to the 
                         glass-infiltration of a ceramic system",
              journal = "Ceramics International",
                 year = "2014",
               volume = "40",
               number = "1",
                pages = "1619–1625",
                month = "Jan.",
                 note = "{Part B}",
             keywords = "silica glass, rare earth oxides, ceramic, Wettability, 
                         Zirconia-alumina composites, residual stress, interface, glass 
                         characterization.",
             abstract = "The viability of a silica glass containing rare earth oxides as 
                         infiltration agents in different ceramic substrates was 
                         investigated. ZrO2(Y2O3)-Al2O3 and Al2O3-ZrO2(Y2O3) composite 
                         ceramics were sintered at 1530 °C/2 h and characterized by X-ray 
                         diffraction (XRD), dilatometry and atomic force microscopy (AFM). 
                         The wetting behavior of the substrates by rare earth glass was 
                         studied by the sessile drop method at temperatures of up to 1285 
                         °C in an argon atmosphere. Both composites presented high relative 
                         density (close to 98%) with ±-Al2O3 and tetragonal ZrO2 as 
                         crystalline phases. The wetting angle of the two substrates 
                         decreased in response to increasing temperature, reaching a final 
                         contact angle of 12.7° on the ZrO2(Y2O3):Al2O3 substrate at 1285 
                         °C and of 13.6° on the Al2O3:ZrO2(Y2O3) substrate at 1275 °C, 
                         indicating good wettability in both cases. Results of fracture 
                         toughness show KIC of 4.3 MPa m1/2 and 5.4 MPa m1/2 for 
                         ZrO2(Y2O3):Al2O3 and Al2O3:ZrO2(Y2O3) respectively. The 
                         theoretical residual stress in the two infiltrated composites were 
                         calculated based on the coefficient of thermal expansion of the 
                         substrates and glass. The ZrO2(Y2O3):Al2O3 and Al2O3:ZrO2(Y2O3) 
                         composites showed calculated residual stresses of 36.5 MPa 
                         (tensile) and 252 MPa (compression), respectively, indicating that 
                         compressive residual stress contributes to increase the toughness 
                         of the glass-infiltrated composites.",
                  doi = "10.1016/j.ceramint.2013.07.052",
                  url = "http://dx.doi.org/10.1016/j.ceramint.2013.07.052",
                 issn = "0272-8842",
                label = "scopus 2013-11",
             language = "en",
           targetfile = "1-s2.0-S0272884213008468-main.pdf",
                  url = "http://dx.doi.org/10.1016/j.ceramint.2013.07.052",
        urlaccessdate = "27 abr. 2024"
}