Thermochimica Acta

, volume 626 , pages 1-8

The effect of metal oxide particle size on the thermal behavior and ignition kinetic of Mg–CuO thermite mixture

Seyed Ghorban Hosseini ¹

Ali Sheikhpour ²

Mohammad Hossein Keshavarz ³

Saeed Tavangar ¹

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Department of Chemistry Malek Ashtar University of Technology P.O. Box 16765‐3454 Tehran Iran |

Department of Chemistry, Malek-Ashtar University of Technology, P.O. Box 16765-3454, Tehran, Iran |

Department of Chemistry, Malek-ashtar University of Technology, P.O. Box 83145/115, Shahin-shahr, Iran |

Publication type: Journal Article

Publication date: 2016-02-01

Elsevier

Thermochimica Acta

scimago Q2

wos Q2

SJR: 0.640

CiteScore: 6.2

Impact factor: 3.5

ISSN: 00406031, 1872762X

DOI: 10.1016/j.tca.2016.01.005

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Physical and Theoretical Chemistry

Condensed Matter Physics

Instrumentation

Abstract

In this work, the influences of the particle size and agglomeration of copper oxide on the thermal behavior of Mg/CuO systems were verified. In the next step, the dependencies of activation energy on extent of conversion (α) for ignition reaction of Mg/CuO systems, obtained using Kissinger–Akahira–Sunose (KAS) isoconversional method. According to DSC data, the ignition temperature and heat of reaction of the physically-mixed μm-Mg/180 nm CuO were 647.4 °C and 2103.9 J g−1, respectively. It was found that the replacement of 180 nm CuO with 50 nm CuO as oxidizer increases the energy output and decreases the ignition temperature and activation energy of Mg/CuO system. The results also revealed that the agglomeration of CuO nanoparticles decreases the heat of reaction and increases activation energy of Mg/CuO mixture in the conversion range of 0.1 ≤ α ≤ 0.5. Moreover, it was observed that melting of magnesium changes the activation energy of Mg/CuO mixture at end of the reaction.

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Hosseini S. G. et al. The effect of metal oxide particle size on the thermal behavior and ignition kinetic of Mg–CuO thermite mixture // Thermochimica Acta. 2016. Vol. 626. pp. 1-8.

GOST all authors (up to 50) Copy

Hosseini S. G., Sheikhpour A., Keshavarz M. H., Tavangar S. The effect of metal oxide particle size on the thermal behavior and ignition kinetic of Mg–CuO thermite mixture // Thermochimica Acta. 2016. Vol. 626. pp. 1-8.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1016/j.tca.2016.01.005

UR - https://doi.org/10.1016/j.tca.2016.01.005

TI - The effect of metal oxide particle size on the thermal behavior and ignition kinetic of Mg–CuO thermite mixture

T2 - Thermochimica Acta

AU - Hosseini, Seyed Ghorban

AU - Sheikhpour, Ali

AU - Keshavarz, Mohammad Hossein

AU - Tavangar, Saeed

PY - 2016

DA - 2016/02/01

PB - Elsevier

SP - 1-8

VL - 626

SN - 0040-6031

SN - 1872-762X

ER -

BibTex

Cite this

BibTex (up to 50 authors) Copy

@article{2016_Hosseini,

author = {Seyed Ghorban Hosseini and Ali Sheikhpour and Mohammad Hossein Keshavarz and Saeed Tavangar},

title = {The effect of metal oxide particle size on the thermal behavior and ignition kinetic of Mg–CuO thermite mixture},

journal = {Thermochimica Acta},

year = {2016},

volume = {626},

publisher = {Elsevier},

month = {feb},

url = {https://doi.org/10.1016/j.tca.2016.01.005},

pages = {1--8},

doi = {10.1016/j.tca.2016.01.005}

}

Publisher

Elsevier

Journal

Thermochimica Acta

scimago Q2

wos Q2

SJR

0.640

CiteScore

6.2

Impact factor

3.5

ISSN

00406031 (Print)

1872762X (Electronic)