Influence of reactant particle size on products of self-propagating high-temperature synthesis in 30wt.% Cr–Ti–B4C system

Zhang, L.; Wang, H.Y.; Li, S.T.; Liu, C.; Jiang, Qi–Chuan

doi:10.1016/j.jallcom.2008.01.007

Cited by 8 publications

(3 citation statements)

References 21 publications

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“…As a result, the small amount of Al-rich liquid crystallized as the Al-Al 3 Ni eutectic and Al 3 Ni phase, and the small amount of Ni-rich liquid crystallized as the g 0 -Ni 3 Al and L1 0 during the subsequently cooling. This is similar to the results achieved by Biswas et al [27,28], Yeh et al [25] and Zhang et al [32]. Biswas et al [27,28] investigated microstructural evolutions of combustion synthesis NiAl and obtained the multiple-phase product when using coarser Ni powder, Yeh et al [25] investigated combustion synthesis of Ni 3 Al intermetallic and also found that an intermediate compound NiAl and the unreacted Ni were present in the final product under the condition of using coarser particles of Ni, and Zhang et al [32] found that the SHS reaction in Cr-Ti-B 4 C system with nano-size power went more complete than that in the system with micronsize powder.…”

Section: Incompleteness Of the Combustion Reactionsupporting

confidence: 92%

Dissolution–precipitation–decomposition–crystallization mechanism of self-propagating high-temperature synthesis of Al3Ni2

Nan

Guo

et al. 2010

Intermetallics

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Section: Incompleteness Of the Combustion Reactionsupporting

confidence: 92%

Dissolution–precipitation–decomposition–crystallization mechanism of self-propagating high-temperature synthesis of Al3Ni2

Nan

Guo

et al. 2010

Intermetallics

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“…With SHS, it is possible to obtain materials of different grades: carbides, oxides, nitrides, borides, silicides, intermetallides, etc. [16,17] Currently, scientists are mainly focused on the possibility of using SHS to obtain composites [18][19][20][21][22][23][24][25][26]. Some works [9][10][11][12][13][14] in the literature have demonstrated successful results in the use of SHS for obtaining composite materials with intermetallic matrices filled with dispersed ceramic inclusions.…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Synthesis of Metal–Matrix Composites (Ni-Ti)-TiB2

et al. 2021

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Currently, metal–matrix composite materials are some of the most promising types of materials, and they combine the advantages of a metal matrix and reinforcing particles/fibres. Within the framework of this article, the high-temperature synthesis of metal–matrix composite materials based on the (Ni-Ti)-TiB2 system was studied. The selected approaches make it possible to obtain composite materials of various compositions without contamination and with a high degree of energy efficiency during production processes. Combustion processes in the samples of a 63.5 wt.% NiB + 36.5 wt.% Ti mixture and the phase composition and structure of the synthesis products were researched. It has been established that the synthesis process in the samples proceeds via the spin combustion mechanism. It has been shown that self-propagating high-temperature synthesis (SHS) powder particles have a composite structure and consist of a Ni-Ti matrix and TiB2 reinforcement inclusions that are uniformly distributed inside it. The inclusion size lies in the range between 0.1 and 4 µm, and the average particle size is 0.57 µm. The obtained metal-matrix composite materials can be used in additive manufacturing technologies as ligatures for heat-resistant alloys, as well as for the synthesis of composites using traditional methods of powder metallurgy.

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“…[ 3 ]. Today, scientists are focusing their attention on the possibility of using the SHS method to obtain composite metal-matrix materials [ 4 , 5 , 6 ]. These composites consist of ceramic particles that are uniformly distributed throughout a metal matrix [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Mechanical Activation of Al-Ti-B Powder Mixture on Phase Composition and Structure of Al-TiB2 Composite Materials Obtained by Self-Propagating High-Temperature Synthesis (SHS)

et al. 2022

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In this study, we successfully obtained Al-TiB2 composite materials using self-propagating high-temperature synthesis and preliminary mechanical activation of the initial Al-(Ti + 2B) powder mixture with a high aluminum content (70 wt.%). We investigated the possibility of controlling the structure of synthesis products, in particular, the size and shape of ceramic particles. We examined the effects of the mechanical activation of the initial powder mixture on the structure and particle size of titanium diboride in the synthesis products. We proposed a mechanism of structure formation in the synthesis products obtained by SHS using the method of preliminary mechanical activation of the initial mixture. We found that mechanical activation for 60-180 s led to the formation of isolated TiB2 particles of prolate and irregular shape. The average particle size of TiB2 in the synthesis products was 0.77 (after 60 s of mechanical activation) and 1.5 µm (after 180 s of mechanical activation), respectively. An increase in the duration of mechanical activation to 900 s led to the formation of an island (skeletal) structure, in which there were interconnected aggregates and isolated particles of titanium diboride. The average size of these particles was 4.3 µm.

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Influence of reactant particle size on products of self-propagating high-temperature synthesis in 30wt.% Cr–Ti–B4C system

Cited by 8 publications

References 21 publications

Dissolution–precipitation–decomposition–crystallization mechanism of self-propagating high-temperature synthesis of Al3Ni2

Dissolution–precipitation–decomposition–crystallization mechanism of self-propagating high-temperature synthesis of Al3Ni2

High-Temperature Synthesis of Metal–Matrix Composites (Ni-Ti)-TiB2

Effect of Mechanical Activation of Al-Ti-B Powder Mixture on Phase Composition and Structure of Al-TiB2 Composite Materials Obtained by Self-Propagating High-Temperature Synthesis (SHS)

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