Characterisation of Porosity in Zirconia-Based Nanopowders

Abstract:

Porosity in several zirconia-based pressure compacted nanopowders was studied using the positron lifetime technique combined with the mass-density measurements. Two kinds of pores were identified: (i) the larger pores of ≈ 10 to 19 nm diameter arising likely from a formation of secondary particle aggregates, and (ii) the smaller ones (≈ 1 nm) which are obviously of a more complex origin.

• Periodical: Defect and Diffusion Forum (Volume 373)
• Pages: 295-298
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.373.295
• Online since: March 2017
• Authors: Ivan Procházka*, Jakub Čížek, Oksana Melikhova, Petr Hruška, Wolfgang Anwand, Tetyana E. Konstantinova, Igor A. Danilenko
• Keywords: Nanopowders, Porosity, Positron Lifetime, Zirconia

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