Effects of reactants proportions on features of in-situ magnesiothermic self-propagating high temperature synthesized boron carbide powder

Shi, Hao; Zhang, Dou; Meng, Yang; Zhang, Ting‐an

doi:10.1016/j.ceramint.2022.07.284

Cited by 5 publications

(4 citation statements)

References 29 publications

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“…The fast and low energy consumption combustion synthesis method can be used to produce B 4 C powder with small particle size. [30][31][32][33] In this work, B 4 C powders were prepared by combustion synthesis with chitosan, dextrin, cellulose, starch, and PVC as the carbon source, boron oxide as the boron source, and magnesium metal as the reducing agent. The phase, morphology, and composition of products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Raman.…”

Section: Introductionmentioning

confidence: 99%

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Combustion synthesized boron carbide powders by different organic carbon sources and microwave absorbing properties

Deng,

Ding,

Xiao

et al. 2024

Int J Applied Ceramic Tech

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Boron carbide powders were synthesized by combustion synthesis using organics chitosan, dextrin, cellulose, starch, and polyvinyl chloride (PVC) as carbon sources. The microwave absorbing properties of boron carbide powders synthesized by different carbon sources were investigated. The results showed that the powders synthesized using organic compounds containing Cl and N atoms as carbon sources have better absorbing properties. The peak value of reflection loss of boron carbide powder prepared with chitosan as carbon source is −46.41 dB at 2.1 mm thickness, with an effective absorption range of 9.21–12.30 GHz and an effective absorption bandwidth of 3.09 GHz. The small and uniform boron carbide grains and residual carbon with multiple morphologies enhance the interface polarization and electronic polarization in the material, which leads to multiple reflections and losses of the microwave. Additionally, the lattice defects and surface holes caused by Cl, N, and other atoms in chitosan and PVC increase the energy storage sites of the material, which makes the materials obtain excellent microwave absorbing properties. Boron carbides fabricated from an organic carbon source provide a potential for the preparation of high‐temperature resistant absorber.

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Section: Introductionmentioning

confidence: 99%

“…However, the preparation of B 4 C powder by combustion synthesis method with organics as the carbon source is rarely reported. The fast and low energy consumption combustion synthesis method can be used to produce B 4 C powder with small particle size 30–33 …”

Section: Introductionmentioning

confidence: 99%

Combustion synthesized boron carbide powders by different organic carbon sources and microwave absorbing properties

Deng,

Ding,

Xiao

et al. 2024

Int J Applied Ceramic Tech

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“…Similarly, the agrowaste product was also prepared as the nanomaterials to produce the metal matrix composites. Some issues are happened during the casting between the base aluminum alloy and other agro-nanoparticles [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Tribological Behavior on Stir-Casted Metal Matrix Composites of Al8011 and Nano Boron Carbide Particles

Vinayaka¹,

Christiyan

Shreepad³

et al. 2023

Journal of Nanomaterials

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The aluminum metal matrix composites were broadly exploited in the applications of automotive, aerospace, and other defense with functionally graded materials-related application. Above applications definitely required excellent mechanical characteristics. Therefore, in this way, the major attempt was made on the nano-based composites with aluminum alloy utilization. In this research, aluminum alloy AA8011 and the ceramic-based reinforcement particles of nano boron carbide (B4C) were selected for producing the metal matrix composites by the liquefying process or stir casting route. The weight percentage of nano boron carbide particles having 15 wt% was subjected to add into the aluminum alloy during the stir casting process. Then, processed nano boron carbide and AA8011 specimens were prepared to conduct tribological behaviors with various processing conditions like sliding velocity, setting wear temperature, and applied load by the tribometer setup. The scanning electron microscope was employed to examine the processed composites samples and worn-out surface samples. Finally, the multiobjective optimization was used to measure the individual performances of the tribological parameters by the gray relational technique.

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“…One of the promising methods for obtaining ceramic and cermet electrode materials used in electro-spark alloying is the SHS extrusion method [39][40][41][42]. The method is based on a combination of combustion processes in the mode of selfpropagating high-temperature synthesis [43][44][45] and subsequent high-temperature shear deformation. The combination of these processes makes it possible to give combustion products a certain shape and size in one technological stage, which makes the process promising for obtaining electrode materials for ESA.…”

Section: Introductionmentioning

confidence: 99%

Coatings Prepared by Electro-Spark Alloying with SHS Electrode Materials Based on Ti-B-Fe-AlN

et al. 2023

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In this work, the features of the phase composition, structures, and properties of coatings obtained on a high-speed steel substrate (steel R6M5) were studied. The coatings were prepared using the ESA method (electro-spark alloying). Electrode materials prepared through self-propagating high-temperature synthesis (SHS) based on (Ti-B-Fe)xAlN with the addition of nanosized AlN particles in the amount of x = 0.5, 10, 15 wt % were used as electrodes. The structure, phase composition, and physical and mechanical properties of the SHS electrode materials are reported. It was found that the coatings inherited the structure of the SHS electrode material and formed two characteristic zones for x = 0 and three zones for x = 5, 10, 15. The surface hardness of the substrate made of the high-speed steel R6M5 with the developed coatings was found to increase up to five times compared to the uncoated substrate. It was found that the wear resistance of the samples with the coating was four to six times higher than that of uncoated samples.

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Effects of reactants proportions on features of in-situ magnesiothermic self-propagating high temperature synthesized boron carbide powder

Cited by 5 publications

References 29 publications

Combustion synthesized boron carbide powders by different organic carbon sources and microwave absorbing properties

Combustion synthesized boron carbide powders by different organic carbon sources and microwave absorbing properties

Tribological Behavior on Stir-Casted Metal Matrix Composites of Al8011 and Nano Boron Carbide Particles

Coatings Prepared by Electro-Spark Alloying with SHS Electrode Materials Based on Ti-B-Fe-AlN

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