Advances in Materials

Volume 9, Issue 4, December 2020

  • Formulation of Clay Refractory Bricks: Influence of the Nature of Chamotte and the Alumina Content in the Clay

    Moustapha Sawadogo, Mohamed Seynou, Lamine Zerbo, Brahima Sorgho, Gisèle Laure Lecomte-Nana, Philippe Blanchart, Raguilnaba Ouédraogo

    Issue: Volume 9, Issue 4, December 2020
    Pages: 59-67
    Received: 22 October 2020
    Accepted: 5 November 2020
    Published: 23 November 2020
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    Abstract: Refractory materials from kaolinitic clays and clay chamotte or quartz were studied to increase the refractoriness under load at temperature above 1300°C. Two different clays mined in Burkina Faso were used and chamotte grains were obtained by preliminary firing a local clay. Fired materials at 1350-1400°C present a typical granular composite micro... Show More
  • Interactions in Atomic and Ionic Liquids

    Jean-Louis Bretonnet

    Issue: Volume 9, Issue 4, December 2020
    Pages: 68-93
    Received: 3 February 2020
    Accepted: 9 July 2020
    Published: 23 November 2020
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    Abstract: This review seeks to describe, from first principles, the nature of the interaction forces in atomic and ionic liquids. The atoms and molecules made up of dipoles and multipoles interact with van der Waals forces, while the ionic systems are viewed as pseudoions interacting through effective forces depending on the electronic structure and the phys... Show More
  • ZnO and ZnO:Ga Ceramics for Advanced Scintillators

    Donats Millers, Larisa Grigorjeva, Aleksejs Zolotarjovs, Faina Muktepavela, Jurgis Grube, Agnese Spustaka, Piotr Rodnyi, Ivan Venevtsev, Elena Gorokhova

    Issue: Volume 9, Issue 4, December 2020
    Pages: 94-101
    Received: 24 November 2020
    Accepted: 8 December 2020
    Published: 22 December 2020
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    Abstract: The undoped ZnO reveals narrow luminescence bands located close to fundamental absorption edge, known as near band luminescence (NBL) and defects related wide luminescence band within visible range of spectrum. NBL decay is in sub-nanosecond range and it is promising for fast scintillator development. However, the defects luminescence decay is in m... Show More