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Positronium Decay Study of Pore Sizes in Silica Sol-Gels

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Abstract

Positronium annihilation has been used to measure pore diameters in silica sol-gels. The results have been compared to those obtained from the BET technique. Pore development in the presence of chemical additives and during the thermal treatment has been studied. A model relating positronium lifetime to the pore size has been proposed.

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Authors and Affiliations

  1. Physics Department, Texas Christian University, P. O. Box 32915, 76129, Fort Worth, TX, USA

    T. W. Zerda, G. Hoang, B. Miller & C. A. Quarles

  2. Geltech, P. O Box 18, 32615, Alachua, FL, USA

    G. Orcel

Authors
  1. T. W. Zerda
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  2. G. Hoang
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  3. B. Miller
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  4. C. A. Quarles
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  5. G. Orcel
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Zerda, T.W., Hoang, G., Miller, B. et al. Positronium Decay Study of Pore Sizes in Silica Sol-Gels. MRS Online Proceedings Library 121, 653–656 (1988). https://doi.org/10.1557/PROC-121-653

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  • DOI: https://doi.org/10.1557/PROC-121-653

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