A combined experimental and theoretical investigation of the Al-Melamine reactive milling system: A mechanistic study towards AlN-based ceramics

Seyyed Amin Rounaghi; Danny E. P. Vanpoucke; Hossein Eshghi; Sergio Scudino; Elaheh Esmaeili; Steffen Oswald; Juergen Eckert

doi:10.1016/j.jallcom.2017.09.168

A combined experimental and theoretical investigation of the Al-Melamine reactive milling system: A mechanistic study towards AlN-based ceramics

Seyyed Amin Rounaghi^*, Danny E. P. Vanpoucke, Hossein Eshghi, Sergio Scudino, Elaheh Esmaeili, Steffen Oswald, Juergen Eckert^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

A versatile ball milling process was employed for the synthesis of hexagonal aluminum nitride (h-AlN) through the reaction of metallic aluminum with melamine. A combined experimental and theoretical study was carried out to evaluate the synthesized products. Milling intermediates and products were fully characterized via various techniques including XRD, FTIR, XPS, Raman and TEM. Moreover, a Boltzmann distribution model was proposed to investigate the effect of milling energy and reactant ratios on the thermodynamic stability and the proportion of different milling products. According to the results, the reaction mechanism and milling products were significantly influenced by the reactant ratio. The optimized condition for AlN synthesis was found to be at Al/M molar ratio of 6, where the final products were consisted of nanostructured AlN with average crystallite size of 11 nm and non-crystalline heterogeneous carbon. (C) 2017 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	240-248
Number of pages	9
Journal	Journal of Alloys and Compounds
Volume	729
DOIs	https://doi.org/10.1016/j.jallcom.2017.09.168
Publication status	Published - 30 Dec 2017
Externally published	Yes

Keywords

Aluminum/melamine ratio
Mechanism
Mechanochemical synthesis
Nanostructured aluminum nitride ceramic
DFT calculations
ALUMINUM NITRIDE POWDERS
METAL NITRIDES
THIN-FILMS
PHASE-TRANSFORMATION
RAMAN-SPECTROSCOPY
CARBON-NITRIDE
GRAPHENE
MECHANOCHEMISTRY
XPS
NANOPARTICLES

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10.1016/j.jallcom.2017.09.168

Cite this

@article{501ef075131d4343a125851db8d65a55,

title = "A combined experimental and theoretical investigation of the Al-Melamine reactive milling system: A mechanistic study towards AlN-based ceramics",

abstract = "A versatile ball milling process was employed for the synthesis of hexagonal aluminum nitride (h-AlN) through the reaction of metallic aluminum with melamine. A combined experimental and theoretical study was carried out to evaluate the synthesized products. Milling intermediates and products were fully characterized via various techniques including XRD, FTIR, XPS, Raman and TEM. Moreover, a Boltzmann distribution model was proposed to investigate the effect of milling energy and reactant ratios on the thermodynamic stability and the proportion of different milling products. According to the results, the reaction mechanism and milling products were significantly influenced by the reactant ratio. The optimized condition for AlN synthesis was found to be at Al/M molar ratio of 6, where the final products were consisted of nanostructured AlN with average crystallite size of 11 nm and non-crystalline heterogeneous carbon. (C) 2017 Elsevier B.V. All rights reserved.",

keywords = "Aluminum/melamine ratio, Mechanism, Mechanochemical synthesis, Nanostructured aluminum nitride ceramic, DFT calculations, ALUMINUM NITRIDE POWDERS, METAL NITRIDES, THIN-FILMS, PHASE-TRANSFORMATION, RAMAN-SPECTROSCOPY, CARBON-NITRIDE, GRAPHENE, MECHANOCHEMISTRY, XPS, NANOPARTICLES",

author = "Rounaghi, {Seyyed Amin} and Vanpoucke, {Danny E. P.} and Hossein Eshghi and Sergio Scudino and Elaheh Esmaeili and Steffen Oswald and Juergen Eckert",

year = "2017",

month = dec,

day = "30",

doi = "10.1016/j.jallcom.2017.09.168",

language = "English",

volume = "729",

pages = "240--248",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier Science",

}

TY - JOUR

T1 - A combined experimental and theoretical investigation of the Al-Melamine reactive milling system

T2 - A mechanistic study towards AlN-based ceramics

AU - Rounaghi, Seyyed Amin

AU - Vanpoucke, Danny E. P.

AU - Eshghi, Hossein

AU - Scudino, Sergio

AU - Esmaeili, Elaheh

AU - Oswald, Steffen

AU - Eckert, Juergen

PY - 2017/12/30

Y1 - 2017/12/30

N2 - A versatile ball milling process was employed for the synthesis of hexagonal aluminum nitride (h-AlN) through the reaction of metallic aluminum with melamine. A combined experimental and theoretical study was carried out to evaluate the synthesized products. Milling intermediates and products were fully characterized via various techniques including XRD, FTIR, XPS, Raman and TEM. Moreover, a Boltzmann distribution model was proposed to investigate the effect of milling energy and reactant ratios on the thermodynamic stability and the proportion of different milling products. According to the results, the reaction mechanism and milling products were significantly influenced by the reactant ratio. The optimized condition for AlN synthesis was found to be at Al/M molar ratio of 6, where the final products were consisted of nanostructured AlN with average crystallite size of 11 nm and non-crystalline heterogeneous carbon. (C) 2017 Elsevier B.V. All rights reserved.

AB - A versatile ball milling process was employed for the synthesis of hexagonal aluminum nitride (h-AlN) through the reaction of metallic aluminum with melamine. A combined experimental and theoretical study was carried out to evaluate the synthesized products. Milling intermediates and products were fully characterized via various techniques including XRD, FTIR, XPS, Raman and TEM. Moreover, a Boltzmann distribution model was proposed to investigate the effect of milling energy and reactant ratios on the thermodynamic stability and the proportion of different milling products. According to the results, the reaction mechanism and milling products were significantly influenced by the reactant ratio. The optimized condition for AlN synthesis was found to be at Al/M molar ratio of 6, where the final products were consisted of nanostructured AlN with average crystallite size of 11 nm and non-crystalline heterogeneous carbon. (C) 2017 Elsevier B.V. All rights reserved.

KW - Aluminum/melamine ratio

KW - Mechanism

KW - Mechanochemical synthesis

KW - Nanostructured aluminum nitride ceramic

KW - DFT calculations

KW - ALUMINUM NITRIDE POWDERS

KW - METAL NITRIDES

KW - THIN-FILMS

KW - PHASE-TRANSFORMATION

KW - RAMAN-SPECTROSCOPY

KW - CARBON-NITRIDE

KW - GRAPHENE

KW - MECHANOCHEMISTRY

KW - XPS

KW - NANOPARTICLES

U2 - 10.1016/j.jallcom.2017.09.168

DO - 10.1016/j.jallcom.2017.09.168

M3 - Article

SN - 0925-8388

VL - 729

SP - 240

EP - 248

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -