The diversity of combustion synthesis processing: a review

Morsi, K.

doi:10.1007/s10853-011-5926-5

Cited by 135 publications

(47 citation statements)

References 165 publications

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“…In the occurrence of a thermal runaway, the reaction is self-accelerated and evolves very fast resulting in the very abrupt mass loss exhibit by the TG. Under this conditions the reaction proceeds quasi-adiabatically, i.e., locally the sample temperature may approach the adiabatic temperature [40,44,45] while the temperature at the crucible walls remains nearly unaltered. Therefore, the actual sample temperature may easily be few hundred degrees above the temperature recorded by the TG.…”

Section: Methodsmentioning

confidence: 99%

Self-propagating high-temperature synthesis of LaMO3 perovskite-type oxide using heteronuclearcyano metal complex precursors

Sánchez-Rodríguez

Wada

Yamaguchi

et al. 2015

Journal of Alloys and Compounds

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The decomposition of La[Fe(CN) 6 ] and La [Co(CN) 6 ] under different atmospheres has been analyzed by thermogravimetry (TG) and differential thermal analysis (DTA). In addition, the decomposition temperature at different sample locations was monitored for sample masses around 2 g of La[Fe(CN) 6 ] and La[Co(CN) 6 ], when they were calcined for 1 h at temperatures ranging from 200 to 400 ºC in a controlled gas-flow system.Results showed that, for sample large enough of these cyano complex precursors undergo combustion when are decomposed under oxygen atmosphere. X-ray diffraction 2 revealed that perovskite-type oxides crystallize due to the overheating of the process. As a result, it has been possible to produce LaFeO 3 and LaCoO 3 perovskite-type oxide powders by SHS under oxygen atmosphere using La[Fe(CN) 6 ] and La[Co(CN) 6 ] as a precursor. The effect of the ignition temperature has been investigated. The specific surface area of the perovskite-type oxides produced via SHS using heteronuclearcyano metal complex as a precursor is significantly higher than that of other LaMO 3 produced using the same technique but obtained from other type of precursors.

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Section: Methodsmentioning

confidence: 99%

Self-propagating high-temperature synthesis of LaMO3 perovskite-type oxide using heteronuclearcyano metal complex precursors

Sánchez-Rodríguez

Wada

Yamaguchi

et al. 2015

Journal of Alloys and Compounds

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“…Exothermic formation reactions that generate intermetallic compounds and heat have been studied extensively [1][2][3][4][5][6][7][8] and can occur in compacts of homogeneous [1][2][3][4][5][6][7][8], composite [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] or core shell particles [29][30][31], or in layered films [32][33][34][35][36][37][38][39][40] or foils [41][42][43]…”

Section: Introductionmentioning

confidence: 99%

“…However, such processes are more expensive than mechanical methods due to high capital costs and lower throughput on a per mass basis. Mechanical methods for fabricating RMs include ball-milling [9,[11][12][13][14][15][16][17][18][19][21][22][23][24][25][26][27][28], rolling [10,[41][42][43][44][45], and cold isostatic pressing [3]. These methods typically have lower capital costs and higher throughputs but cannot achieve the same microstructural uniformity as PVD methods.…”

Section: Introductionmentioning

confidence: 99%

Properties of reactive Al:Ni compacts fabricated by radial forging of elemental and alloy powders

Gibbins

Stover

Krywopusk

et al. 2015

Combustion and Flame

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a b s t r a c tWe explore rotary swaging of powders into solid compacts as an inexpensive means of producing reactive materials with refined microstructures and improved properties. Rotary swaging is a cold forging process that reduces the diameter of tubes, and in this study the tubes are packed with reactive combinations of elemental and alloy powders. The diameter reductions create a nearly fully dense compact from the powders and also reduce the average reactant spacing through plastic deformation. The extent of diameter reduction controls the microstructural refinement, observed through cross-sectional imaging. We correlate the observed changes in microstructure with reaction properties that are characterized using differential scanning calorimetry (DSC), hot-plate ignition studies, and velocity measurements. Exothermic peaks in DSC scans all shift to lower onset temperatures; hot plate ignition temperatures decrease; and reaction velocities rise as the degree of swaging is increased. We vary the shape of the initial reactants by substituting Ni flakes for Ni powders and find no improvement in microstructure or reaction properties, due to clumping of the Ni flakes during the initial compaction steps. We also vary chemistry by substituting Al-Mg alloy powders for Al powders and find that the alloy powders yield lower DSC exothermic peak temperatures, lower ignition temperatures, and higher reaction velocities compared to similar compacts with pure Al powders. This combination of results suggests that rotary swaging is an effective technique for producing reactive materials at low cost.

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“…Combustion synthesis which was also called self-propagating high-temperature synthesis (SHS) is being used to produce ceramics, intermetallics, and composite materials [11][12][13][14]. Based on this technology, joining a ductile metal with a brittle ceramic composite matrix has considerable potential for substantial improvements in fracture toughness [15].…”

Section: Introductionmentioning

confidence: 99%

Fusion bonding and microstructure formation in TiB2-based ceramic/metal composite materials fabricated by combustion synthesis under high gravity

Huang

Zhang

et al. 2015

J Adv Ceram

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Abstract:The novel ceramic/metal composite materials were successfully fabricated by combustion synthesis in high gravity field. In this paper, the Ti-B 4 C was selected as the main combustion reaction system to obtain TiB 2 -TiC ceramic substrate, and the 1Cr18Ni9Ti stainless steel was selected as the metal substrate. It was found that the TiB 2 -TiC/1Cr18Ni9Ti composite materials exhibited continuously graded composition and hybrid microstructure. The TiC 1x carbides and TiB 2 platelets decreased gradually in size and volume fraction from the ceramic to stainless steel. Due to the rapid action of thermal explosion as well as the dissolution of the molten stainless steel into TiB 2 -TiC liquid, the diffusion-controlled concentration gradient from the ceramic liquid to the alloy liquid was observed. Finally, as a result of the rapid sequent solidification of the ceramic liquid and the melt alloy surface, the laminated composite materials were achieved in multilevel, scale-span hybrid microstructure.

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The diversity of combustion synthesis processing: a review

Cited by 135 publications

References 165 publications

Self-propagating high-temperature synthesis of LaMO3 perovskite-type oxide using heteronuclearcyano metal complex precursors

Self-propagating high-temperature synthesis of LaMO3 perovskite-type oxide using heteronuclearcyano metal complex precursors

Properties of reactive Al:Ni compacts fabricated by radial forging of elemental and alloy powders

Fusion bonding and microstructure formation in TiB2-based ceramic/metal composite materials fabricated by combustion synthesis under high gravity

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