Preparation by SHS-Extrusion Method of Compact Ceramic Electrode Materials Based on Ti–B–Fe System Modified with Nanosized AlN Particles

Bolotskaya, A. V.; Михеев, М. В.

doi:10.1007/s11148-020-00483-3

Cited by 6 publications

(2 citation statements)

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“…The decrease in the grain size of titanium diboride is explained by the fact that, when a nanomodifier in the form of dispersed AlN particles is added, the combustion temperature decreases because the heat released during the chemical reaction of titanium with boron is partially spent on the decomposition of AlN and is spent on further low-exothermic (taking into account the small fraction of nanoparticle additives) or endothermic reactions with the initial components and synthesis products. These factors limit the growth of titanium diboride grains [52,53]. The properties of the SHS electrode materials used in this work are reported in Table 1 and show that, with an increase in the number of AlN particles in the electrode material, its hardness increases and the electrical resistance decreases.…”

Section: Objects Of Studymentioning

confidence: 96%

“…titanium diboride grains [52,53]. The properties of the SHS electrode materials used in thi work are reported in Table 1 and show that, with an increase in the number of AlN parti cles in the electrode material, its hardness increases and the electrical resistance decreases The decrease in electrical resistance in the electrode material leads to an improvement in its erosive ability when applying a protective coating.…”

Section: Esa Coatingmentioning

confidence: 98%

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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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Section: Objects Of Studymentioning

confidence: 96%

Section: Esa Coatingmentioning

confidence: 98%