Structural, morphological and optical investigations of θ-Al2O3 ultrafine powder

Single-phase θ-Al2O3 nanopowder has been synthesized by co-precipitation technique. The synthesized powders were sintered at a temperature ranging from 900 to 1200 °C. A stable monoclinic phase is observed for the whole sintering temperature range. The purity, chemical bonds, morphology and optical...

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Main Authors: Jbara, A. S., Othaman, Z., Saeed, M. A.
Format: Article
Published: Elsevier Ltd 2017
Subjects:
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author Jbara, A. S.
Othaman, Z.
Saeed, M. A.
author_facet Jbara, A. S.
Othaman, Z.
Saeed, M. A.
author_sort Jbara, A. S.
collection ePrints
description Single-phase θ-Al2O3 nanopowder has been synthesized by co-precipitation technique. The synthesized powders were sintered at a temperature ranging from 900 to 1200 °C. A stable monoclinic phase is observed for the whole sintering temperature range. The purity, chemical bonds, morphology and optical properties of the powders were investigated by different characterization techniques. X-ray diffraction and Brunauer–Emmett–Teller analysis confirms the existence of ultrafine alumina powders with particle diameter of ∼5 nm and surface area of 100 m2/g. The novel optical results such as band gap of 5.8 eV would reveal the viability of observed phase of alumina in advanced semiconductor applications.
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spelling utm.eprints-764082018-04-30T13:20:01Z http://eprints.utm.my/76408/ Structural, morphological and optical investigations of θ-Al2O3 ultrafine powder Jbara, A. S. Othaman, Z. Saeed, M. A. QC Physics Single-phase θ-Al2O3 nanopowder has been synthesized by co-precipitation technique. The synthesized powders were sintered at a temperature ranging from 900 to 1200 °C. A stable monoclinic phase is observed for the whole sintering temperature range. The purity, chemical bonds, morphology and optical properties of the powders were investigated by different characterization techniques. X-ray diffraction and Brunauer–Emmett–Teller analysis confirms the existence of ultrafine alumina powders with particle diameter of ∼5 nm and surface area of 100 m2/g. The novel optical results such as band gap of 5.8 eV would reveal the viability of observed phase of alumina in advanced semiconductor applications. Elsevier Ltd 2017 Article PeerReviewed Jbara, A. S. and Othaman, Z. and Saeed, M. A. (2017) Structural, morphological and optical investigations of θ-Al2O3 ultrafine powder. Journal of Alloys and Compounds, 718 . pp. 1-6. ISSN 0925-8388 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019092721&doi=10.1016%2fj.jallcom.2017.05.085&partnerID=40&md5=3680899e10172f7d991f88a4a9c3ed0b DOI:10.1016/j.jallcom.2017.05.085
spellingShingle QC Physics
Jbara, A. S.
Othaman, Z.
Saeed, M. A.
Structural, morphological and optical investigations of θ-Al2O3 ultrafine powder
title Structural, morphological and optical investigations of θ-Al2O3 ultrafine powder
title_full Structural, morphological and optical investigations of θ-Al2O3 ultrafine powder
title_fullStr Structural, morphological and optical investigations of θ-Al2O3 ultrafine powder
title_full_unstemmed Structural, morphological and optical investigations of θ-Al2O3 ultrafine powder
title_short Structural, morphological and optical investigations of θ-Al2O3 ultrafine powder
title_sort structural morphological and optical investigations of θ al2o3 ultrafine powder
topic QC Physics
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