Navegação Ciências Exatas e da Terra por Autor "Kinast, Eder Julio"

Resultados 1-6 de 6

    • Aplicação da casca de arroz como adsorvente para remoção de cromo hexavalente em soluções aquosas 

      Gamboa, Vanessa Schwarstzhaupt; Gasparin, Fabiano Perin; Kinast, Eder Julio; Benvenutti, Edilson Valmir; Ries, Lucia Allebrandt da Silva (2022) [Artigo de periódico]
      O presente estudo propõe o emprego da casca de arroz, sem (CA) e com pré-tratamento ácido (CAH+), como adsorvente de baixo custo na remoção de Cr(VI) em soluções aquosas. Caracterizações morfológicas, químicas e estruturais ...

    • Bicriticality in Fe/sub x/Co/sub 1-x/Ta/sub 2/O/sub 6/ 

      Kinast, Eder Julio; Antonietti, Volmir; Schmitt, Denys; Isnard, Olivier; Cunha, Joao Batista Marimon da; Gusmao, Miguel Angelo Cavalheiro; Santos, Carlos Alberto dos (2003) [Artigo de periódico]
      X-ray and neutron-diffraction, dc magnetic susceptibility, magnetization, and specific-heat measurements are reported for FexCo1 xTa2O6 mixed oxides. X-ray refinement indicates homogeneous samples for all the reported ...

    • Crystal chemistry and structure of the orthorhombic (Fe, Mn)(Ta, Nb)/sub 2/O/sub 6/ family of compounds 

      Santos, Carlos Alberto dos; Zawislak, Luci Irene; Kinast, Eder Julio; Antonietti, Volmir; Cunha, Joao Batista Marimon da (2001) [Artigo de periódico]
      In this paper we review the crystal chemistry and structure data from the literature and our results reported in the last decade for natural and synthetic samples of the tantalite-columbite series. Orderdisorder transitions ...

    • A new approach for the determination of multiple cation locations and ordering, using the example of natural and heat-treated columbites 

      Kinast, Eder Julio; Isnard, Olivier; Cunha, Joao Batista Marimon da; Vasconcellos, Marcos Antonio Zen; Santos, Carlos Alberto dos (2011) [Artigo de periódico]
      A new approach is proposed to determine unambiguously the location of four cations within the crystal structure of a natural AB2O6 columbite-type compound and derivatives, when submitted to order–disorder transitions caused ...

    • Suppression of magnetic ordering in quasi-one-dimensional FexCo1−xNb2O6 compounds 

      Sarvezuk, Paulo Willian Carvalho; Kinast, Eder Julio; Colin, C. V.; Gusmao, Miguel Angelo Cavalheiro; Cunha, Joao Batista Marimon da; Isnard, Olivier (2011) [Artigo de periódico]
      We present a systematic investigation of the series of compounds FexCo1−xNb2O6 by means of x-ray and neutron powder diffraction combined with magnetic measurements, carried out in the paramagnetic as well as in the ordered ...

    • Surface modification of titanium by plasma nitriding 

      Kapczinski, Myriam Pereira; Gil, Carlos; Kinast, Eder Julio; Santos, Carlos Alberto dos (2003) [Artigo de periódico]
      A systematic investigation was undertaken on commercially pure titanium submitted to plasma nitriding. Thirteen different sets of operational parameters (nitriding time, sample temperature and plasma atmosphere) were used. ...