Get access

Novel Open-Cellular Glass Foams for Optical Applications

Authors

  • Christiane Ohl,

    1. Light Weight Ceramics Group, Department of Mathematics, Science and Computer Science, Brandenburg Technical University Cottbus, D-03046 Cottbus, Germany
    Search for more papers by this author
  • Mathias Kappa,

    1. Light Weight Ceramics Group, Department of Mathematics, Science and Computer Science, Brandenburg Technical University Cottbus, D-03046 Cottbus, Germany
    Search for more papers by this author
  • Viola Wilker,

    1. Light Weight Ceramics Group, Department of Mathematics, Science and Computer Science, Brandenburg Technical University Cottbus, D-03046 Cottbus, Germany
    Search for more papers by this author
  • Sarama Bhattacharjee,

    1. Institute of Minerals & Materials Technology (IMMT-CSIR), Bhubaneswar 751013, India
    Search for more papers by this author
  • Franziska Scheffler,

    1. Department of Process and Systems Engineering, Institute for Chemistry, Otto von Guericke University, Magdeburg D-39106, Germany
    Search for more papers by this author
  • Michael Scheffler

    Corresponding author
    1. Department of Mechanical Engineering, Institute Materials and Joining Technology, Otto von Guericke University, Magdeburg D-39106, Germany
      †Author to whom correspondence should be addressed. e-mail: m.scheffler@ovgu.de
    Search for more papers by this author

  • P. Colombo—contributing editor

  • This work was financially supported by DFG and DAAD, Germany, and CSIR, India.

†Author to whom correspondence should be addressed. e-mail: m.scheffler@ovgu.de

Abstract

Cellular catalyst supports gain an increasing importance for exhaust gas treatment and environmental catalysis. In combination with photocatalytical active components, a high light transmittance is necessary for high-efficiency activation. In order to obtain optically suitable glass foams, a novel process was developed based on the use of a preceramic polymer. During thermal decomposition, the polymer provides highly dispersed silicon dioxide (SiO2), which simultaneously reacts with a glass modifier to form a borosilicate glass. Because of a low processing temperature of 1050°C or less, the open-cellular structure was retained and is therefore suitable for coatings and applications where high permeability and optical transmittance are required.

Get access to the full text of this article

Ancillary