Effect of Fe2O3 as an accelerator on the reaction mechanism of Al–TiO2 nanothermite system

Mousavian, R. Taherzadeh; Azizi, Nematollah; Jiang, Zhengyi; Boostani, A. Fadavi

doi:10.1007/s10973-014-3820-5

Cited by 9 publications

(2 citation statements)

References 27 publications

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“…Cold welding and fracturing are the two major phenomena in the mechanical alloying process. The alloying procedure continues until the rate of welding and fracturing becomes balanced (Mosleh, Ehteshamzadeh, and Mousavian 2014;Mousavian et al 2014;Zebarjad and Sajjadi 2006;Khakbiz and Akhlaghi 2009;Rivera et al 2012;Nekouee et al 2015;Forouzan et al 2015;.…”

Section: Introductionmentioning

confidence: 99%

Microstructural characterization of ball-milled metal matrix nanocomposites (Cr, Ni, Ti)-25 wt% (Al₂O_3np, SiC_np)

Afkham

Khosroshahi

Mousavian

et al. 2016

Particulate Science and Technology

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The microstructure of high-temperature metals such as Ti, Ni, and Cr can be modified using ceramic nanoparticles to form metal matrix nanocomposites (MMNCs). Such materials are generally prepared via powder metallurgy routes. In this study, 25 wt. % SiCnp and Al2O3np were separately ball-milled as a reinforcement of Ti, Cr, and Ni matrices to investigate their effects on the phase formation and morphology of the MMNCs. The XRD, SEM, and FESEM results indicated that the alumina-metal system could not be thermodynamically stable in a high-energy ball mill, while the SiC reinforcement could be retained and milled with the metals even after 24 hours. It was further observed that the distribution of nanoparticles was not affected by the type of metal, ceramic, and milling time. Finally, it was determined that the nanoparticles significantly reduced the average particle size of composite powders.

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Section: Introductionmentioning

confidence: 99%

Microstructural characterization of ball-milled metal matrix nanocomposites (Cr, Ni, Ti)-25 wt% (Al₂O_3np, SiC_np)

Afkham

Khosroshahi

Mousavian

et al. 2016

Particulate Science and Technology

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“…The process is simple and lacks a need for complicated expensive experimental configurations. The reaction is complete within seconds rather than hours, which makes SHS an economical process [29,30]. The chemical reaction of the mixture of B 2 O 3 and C reacted with Mg to produce B 4 C is shown in Eq.…”

Section: Introductionmentioning

confidence: 99%

A three-step synthesis process of submicron boron carbide powders using microwave energy

Forouzan

Mousavian

Sharif

et al. 2015

J Therm Anal Calorim

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In this study, a three-step synthesis process is proposed for the production of submicron B 4 C powders. The initial step is the mechanical activation of a Mg-C-B 2 O 3 mixture, which is carried out by using a high-energy planetary ball mill. The second phase is the microwaveassisted combustion synthesis, used to fabricate the MgO-B 4 C composite powders. The final stage is an acid leaching for removing the MgO phase. The results of DSC, XRD, and SEM analyses indicated that mechanical activation was a vital process for microwave synthesis and that no starting powders were remained unreacted after microwave heating. A considerable reduction in reaction temperature was obtained from DSC analysis after mechanical activation process. TG results indicated that separated milling of Mg with B 2 O 3 powders would avoid the formation of gases during exothermic reactions. Finally, it was found that submicron boron carbide powders with an average crystallite size about 114 nm were produced with a high purity after acid leaching.

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Mechanical activation process for self-propagation high-temperature synthesis of ceramic-based composites

Farhanchi

Neysari

Barenji

et al. 2015

J Therm Anal Calorim

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Effect of Fe2O3 as an accelerator on the reaction mechanism of Al–TiO2 nanothermite system

Cited by 9 publications

References 27 publications

Microstructural characterization of ball-milled metal matrix nanocomposites (Cr, Ni, Ti)-25 wt% (Al₂O_3np, SiC_np)

Microstructural characterization of ball-milled metal matrix nanocomposites (Cr, Ni, Ti)-25 wt% (Al₂O_3np, SiC_np)

A three-step synthesis process of submicron boron carbide powders using microwave energy

Mechanical activation process for self-propagation high-temperature synthesis of ceramic-based composites

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Effect of Fe2O3 as an accelerator on the reaction mechanism of Al–TiO2 nanothermite system

Cited by 9 publications

References 27 publications

Microstructural characterization of ball-milled metal matrix nanocomposites (Cr, Ni, Ti)-25 wt% (Al2O3np, SiCnp)

Microstructural characterization of ball-milled metal matrix nanocomposites (Cr, Ni, Ti)-25 wt% (Al2O3np, SiCnp)

A three-step synthesis process of submicron boron carbide powders using microwave energy

Mechanical activation process for self-propagation high-temperature synthesis of ceramic-based composites

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Product

Resources

About

Microstructural characterization of ball-milled metal matrix nanocomposites (Cr, Ni, Ti)-25 wt% (Al₂O_3np, SiC_np)

Microstructural characterization of ball-milled metal matrix nanocomposites (Cr, Ni, Ti)-25 wt% (Al₂O_3np, SiC_np)