Role of energy and gas pressure on phase evolution of nano-alumina in wire explosion process

P. Ranjan; R. Sarathi; H. Suematsu; J. Jiang; L. Chen

doi:10.1049/icp.2022.0530

Role of energy and gas pressure on phase evolution of nano-alumina in wire explosion process

P. Ranjan, R. Sarathi, H. Suematsu, J. Jiang, L. Chen

EEE - Academic & Research

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Abstract

Phase control of alumina nanoparticles (NPs) is successfully shown by wire explosion process under gas ambient. Aluminium wire was exploded at different levels of energy in oxygen ambient under pressures of 20 and 180 kPa. X-ray diffraction patterns indicate that the 20 kPa tests yield δ-alumina while 180 kPa tests yield γ-alumina NPs with an appropriate value of energy. Spherical NPs were obtained as visualised from SEM and TEM micrographs. Size of NPs decreased with an increase in energy and/or a decrease in pressure of oxygen. The formation mechanism of different phases and sizes of NPs are detailed in this paper.

Original language	English
Title of host publication	22nd International Symposium on High Voltage Engineering (ISH 2021)
Pages	423-426
DOIs	https://doi.org/10.1049/icp.2022.0530
Publication status	E-pub ahead of print - 20 Jun 2022

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title = "Role of energy and gas pressure on phase evolution of nano-alumina in wire explosion process",

abstract = "Phase control of alumina nanoparticles (NPs) is successfully shown by wire explosion process under gas ambient. Aluminium wire was exploded at different levels of energy in oxygen ambient under pressures of 20 and 180 kPa. X-ray diffraction patterns indicate that the 20 kPa tests yield δ-alumina while 180 kPa tests yield γ-alumina NPs with an appropriate value of energy. Spherical NPs were obtained as visualised from SEM and TEM micrographs. Size of NPs decreased with an increase in energy and/or a decrease in pressure of oxygen. The formation mechanism of different phases and sizes of NPs are detailed in this paper.",

author = "P. Ranjan and R. Sarathi and H. Suematsu and J. Jiang and L. Chen",

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AU - Ranjan, P.

AU - Sarathi, R.

AU - Suematsu, H.

AU - Jiang, J.

AU - Chen, L.

PY - 2022/6/20

Y1 - 2022/6/20

N2 - Phase control of alumina nanoparticles (NPs) is successfully shown by wire explosion process under gas ambient. Aluminium wire was exploded at different levels of energy in oxygen ambient under pressures of 20 and 180 kPa. X-ray diffraction patterns indicate that the 20 kPa tests yield δ-alumina while 180 kPa tests yield γ-alumina NPs with an appropriate value of energy. Spherical NPs were obtained as visualised from SEM and TEM micrographs. Size of NPs decreased with an increase in energy and/or a decrease in pressure of oxygen. The formation mechanism of different phases and sizes of NPs are detailed in this paper.

AB - Phase control of alumina nanoparticles (NPs) is successfully shown by wire explosion process under gas ambient. Aluminium wire was exploded at different levels of energy in oxygen ambient under pressures of 20 and 180 kPa. X-ray diffraction patterns indicate that the 20 kPa tests yield δ-alumina while 180 kPa tests yield γ-alumina NPs with an appropriate value of energy. Spherical NPs were obtained as visualised from SEM and TEM micrographs. Size of NPs decreased with an increase in energy and/or a decrease in pressure of oxygen. The formation mechanism of different phases and sizes of NPs are detailed in this paper.

U2 - 10.1049/icp.2022.0530

DO - 10.1049/icp.2022.0530

M3 - Conference contribution

SP - 423

EP - 426

BT - 22nd International Symposium on High Voltage Engineering (ISH 2021)

ER -

Role of energy and gas pressure on phase evolution of nano-alumina in wire explosion process

Abstract

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