@Article{GondimMaeRamRodRam:2015:SyTaCo,
               author = "Gondim, Maria de F{\'a}tima and Maestrelli, Sylma Carvalho and 
                         Ramos, Erika Coaglia Trindade and Rodrigues, Jos{\'e} Augusto 
                         Jorge and Ramos, Alfeu Saraiva",
          affiliation = "{Universidade Federal de Alfenas} and {Universidade Federal de 
                         Alfenaa} and {Universidade Federal de Alfenas} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Universidade Federal 
                         de Alfenas}",
                title = "Synthesis of TaAlO4 compound and Al2O3–TaAlO4 composite ceramic by 
                         mechanical alloying and their sintering",
              journal = "Ceramics International",
                 year = "2015",
               volume = "41",
               number = "2",
                pages = "2260--2265",
                month = "Mar.",
             keywords = "B. composite, D. transition metal oxides, powder processing solid 
                         state, catalysts.",
             abstract = "This work discusses on the synthesis of TaAlO4 compound and 
                         Al2O3TaAlO4 composite ceramic by mechanical alloying and 
                         subsequent sintering from the Al2O350 mol%Ta2O5 and Al2O35 
                         mol%Ta2O5 powder mixtures, respectively. The samples were milled, 
                         compacted and sintered at 1200 °C for 240 min in order to obtain 
                         the equilibrium phases. The as-milled powders and sintered samples 
                         were characterized by X-ray diffraction, and BET analysis, 
                         He-picnometry, and DSC/TG analyses. Only peaks of \α-Al2O3 
                         and Ta2O5 were identified in XRD patterns of as-milled Al2O35 
                         mol%Ta2O5 and Al2O350 mol%Ta2O5 powders. Results have indicated 
                         that Al ions were preferentially dissolved into the Ta2O5 lattice 
                         in order to form metastable structures. The average density of the 
                         Al2O35 mol%Ta2O5 and Al2O350 mol%Ta2O5 powder particles was 
                         reduced during ball milling while that their surface areas were 
                         continuously increased during ball milling, respectively. For the 
                         Al2O350 mol%Ta2O5 powder mixture, the surface area was reduced 
                         during the initial milling time. After sintering at 1200 °C for 
                         240 min, the TaAlO4 compound and Al2O3TaAlO4 composite were formed 
                         from the mechanically alloyed Al2O35 mol%Ta2O5 and Al2O350 
                         mol%Ta2O5 samples, respectively.",
                  doi = "10.1016/j.ceramint.2014.10.029",
                  url = "http://dx.doi.org/10.1016/j.ceramint.2014.10.029",
                 issn = "0272-8842",
             language = "en",
           targetfile = "Synthesis of talo4.pdf",
        urlaccessdate = "27 abr. 2024"
}