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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Elsevier Ltd
2017
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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. |
first_indexed | 2024-03-05T20:12:34Z |
format | Article |
id | utm.eprints-76408 |
institution | Universiti Teknologi Malaysia - ePrints |
last_indexed | 2024-03-05T20:12:34Z |
publishDate | 2017 |
publisher | Elsevier Ltd |
record_format | dspace |
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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