Study of nanoporous in humidity-sensitive MgAl₂O₄ ceramics with positron annihilation lifetime spectroscopy

Домашня сторінка
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Фізико-технічні та математичні науки
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Відділення фізики і астрономії
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Semiconductor Physics Quantum Electronics & Optoelectronics
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Semiconductor Physics Quantum Electronics & Optoelectronics, 2011, том 14
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Semicond. Physics Quantum Electronics & Optoelectronics, 2011, № 1
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Study of nanoporous in humidity-sensitive MgAl₂O₄ ceramics with positron annihilation lifetime spectroscopy

Інший ID: PACS 82.45.Xy, 92.60.Jq

URI: http://dspace.nbuv.gov.ua/handle/123456789/117652

Посилання: Study of nanoporous in humidity-sensitive MgAl₂O₄ ceramics with positron annihilation lifetime spectroscopy / H. Klym // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2011. — Т. 14, № 1. — С. 109-113. — Бібліогр.: 23 назв. — англ.

Підтримка: The author thanks to Dr. I. Hadzaman (Drohobych Ivan Franko State Pedagogical University, Drohobych, Ukraine) for sample preparation and Dr. A. Ingram (Opole University of Technology, Poland) for assistance in PALS experiments.

Дата: 2011

Завантажень: 462

Study of nanoporous in humidity-sensitive MgAl₂O₄ ceramics with positron annihilation lifetime spectroscopy

Анотація:

It has been shown that positron annihilation lifetime spectroscopy is a quite promising tool for nanostructural characterization of humidity-sensitive spinel-type MgAl₂O₄ceramics. The results have been achieved using the four-component fitting procedure with arbitrary lifetimes that is applied to mathematically treat the measured spectra. It has been shown that the Tao-Eldrup model is adequate to calculate the nanopore size in MgAl₂O₄ ceramics if using the lifetime values of the third and fourth components.

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