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Title Positronium Characterization of Nanopores in Technologically Modified MgO-Al2O3 Ceramics
Authors Klym, H.
Ingram, A.
Hadzaman, I.
Shpotyuk, O.
Karbovnyk, I.
Keywords Spinel
Ceramics
Positronium
Water-immersion
Drying
Type Conference Papers
Date of Issue 2015
URI http://essuir.sumdu.edu.ua/handle/123456789/42727
Publisher Sumy State University
License
Citation Positronium Characterization of Nanopores in Technologically Modified MgO-Al2O3 Ceramics [Текст] / H. Klym, A. Ingram, I. Hadzaman et al. // Nanomaterials: Applications & Properties (NAP-2015) : Proceedings of the International Conference. — Sumy : Sumy State University, 2015. — V.4, No1. — 01MAN04.
Abstract It is established that positron annihilation lifetime spectroscopy can be successful used as porosimetry method to study of nanopores size and transformation of free volume in humidity-sensitive MgO-Al2O3 ceramics in adsorption-desorption cycles using lifetimes of ortho-positronium-related components. It is shown that the fourth component gives information about water-free volume or nanopores size, while the third component reflects positronium trapping both in nanopores and in water “bubbles”.
Appears in Collections: Наукові видання (ЕлІТ)

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