Synthesis and structural characterization of nanocrystalline aluminium oxide

P. Madhu Kumar; Pramod Borse; V. K. Rohatgi; S. V. Bhoraskar; Prabhat Singh; Murali Sastry

doi:10.1016/0254-0584(94)90054-X

Synthesis and structural characterization of nanocrystalline aluminium oxide

P. Madhu Kumar, Pramod Borse, V. K. Rohatgi, S. V. Bhoraskar, Prabhat Singh, Murali Sastry

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32 Citations (Scopus)

Abstract

Nanocrystalline alumina (Al₂O₃) powder has been synthesized by the d.c. arc plasma method at atmospheric conditions using aluminium electrodes. Structural characterization by X-ray diffraction and transmission electron microscopy confirmed the ultrafine nature of the particulates. Investigation of the size distribution revealed a long-normal behaviour of the nanoparticles. Chemical analysis of the particulates was carried out using X-ray photoemission spectroscopy. The Al 2p core level spectrum revealed the presence of unreacted Al⁰, in addition to Al³⁺, suggesting a core of Al⁰ surrounded by a layer of Al₂O₃ as the particle structure.

Original language	English
Pages (from-to)	354-358
Number of pages	5
Journal	Materials Chemistry and Physics
Volume	36
Issue number	3-4
DOIs	https://doi.org/10.1016/0254-0584(94)90054-X
Publication status	Published - Jan 1994
Externally published	Yes

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title = "Synthesis and structural characterization of nanocrystalline aluminium oxide",

abstract = "Nanocrystalline alumina (Al2O3) powder has been synthesized by the d.c. arc plasma method at atmospheric conditions using aluminium electrodes. Structural characterization by X-ray diffraction and transmission electron microscopy confirmed the ultrafine nature of the particulates. Investigation of the size distribution revealed a long-normal behaviour of the nanoparticles. Chemical analysis of the particulates was carried out using X-ray photoemission spectroscopy. The Al 2p core level spectrum revealed the presence of unreacted Al0, in addition to Al3+, suggesting a core of Al0 surrounded by a layer of Al2O3 as the particle structure.",

author = "Kumar, {P. Madhu} and Pramod Borse and Rohatgi, {V. K.} and Bhoraskar, {S. V.} and Prabhat Singh and Murali Sastry",

year = "1994",

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doi = "10.1016/0254-0584(94)90054-X",

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T1 - Synthesis and structural characterization of nanocrystalline aluminium oxide

AU - Kumar, P. Madhu

AU - Borse, Pramod

AU - Rohatgi, V. K.

AU - Bhoraskar, S. V.

AU - Singh, Prabhat

AU - Sastry, Murali

PY - 1994/1

Y1 - 1994/1

N2 - Nanocrystalline alumina (Al2O3) powder has been synthesized by the d.c. arc plasma method at atmospheric conditions using aluminium electrodes. Structural characterization by X-ray diffraction and transmission electron microscopy confirmed the ultrafine nature of the particulates. Investigation of the size distribution revealed a long-normal behaviour of the nanoparticles. Chemical analysis of the particulates was carried out using X-ray photoemission spectroscopy. The Al 2p core level spectrum revealed the presence of unreacted Al0, in addition to Al3+, suggesting a core of Al0 surrounded by a layer of Al2O3 as the particle structure.

AB - Nanocrystalline alumina (Al2O3) powder has been synthesized by the d.c. arc plasma method at atmospheric conditions using aluminium electrodes. Structural characterization by X-ray diffraction and transmission electron microscopy confirmed the ultrafine nature of the particulates. Investigation of the size distribution revealed a long-normal behaviour of the nanoparticles. Chemical analysis of the particulates was carried out using X-ray photoemission spectroscopy. The Al 2p core level spectrum revealed the presence of unreacted Al0, in addition to Al3+, suggesting a core of Al0 surrounded by a layer of Al2O3 as the particle structure.

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U2 - 10.1016/0254-0584(94)90054-X

DO - 10.1016/0254-0584(94)90054-X

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VL - 36

SP - 354

EP - 358

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

IS - 3-4

ER -

Synthesis and structural characterization of nanocrystalline aluminium oxide

Abstract

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