@Article{MineiroGonçOkamTenó:2020:MiAnZi,
               author = "Mineiro, S{\'e}rgio Luiz and Gon{\c{c}}alo, D{\'e}bora 
                         Aparecida Cunha and Okamoto, Sayuri and Ten{\'o}rio, 
                         Pl{\'{\i}}nio Ivo Gama",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Federal de S{\~a}o Paulo (UNIFESP)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Microstructural analysis of zinc niobate ceramics processed by 
                         microwave thermal treatment",
              journal = "Materials Science Forum",
                 year = "2020",
               volume = "1012",
                pages = "185--189",
             keywords = "Zinc niobate, microwave heating, calcination, XRD, 
                         microstructure.",
             abstract = "In this work are presented analyzes from calcination and sintering 
                         of zinc niobate ceramics by microwave processing. In order to 
                         obtain minimum processing parameters, the behavior of the material 
                         was first studied for the calcination at different temperatures in 
                         the range of 450 to 1150°C, with duration time of 10 minutes. The 
                         sintering was carried out between 950 and 1050°C. The results 
                         showed that the crystalline structure of the calcined and sintered 
                         samples was influenced by the temperature, because, according to 
                         the increase in temperature, the evolution of the formed 
                         crystalline phases was observed and only the Zn3Nb2O8 and ZnNb2O6 
                         phases prevailed in the final microstructure. The densification of 
                         the sintered ceramics was influenced by the time and temperature 
                         of the heat treatment, with lower residual porosity and grain 
                         growth with the increase of the sintering temperature in the 
                         microwave oven.",
                  doi = "10.4028/www.scientific.net/MSF.1012.185",
                  url = "http://dx.doi.org/10.4028/www.scientific.net/MSF.1012.185",
                 issn = "0255-5476",
             language = "en",
        urlaccessdate = "27 abr. 2024"
}