Reduction–boronation route to chromium boride (CrB) nanorods

Mechanical activation-assisted autoclave processing and sintering of HfB2-HfO2 ceramic powders

“…morphology (rod, cube, sheet, i.e.) of the particles [23,44]. Moreover, autoclave synthesis is considered as an environmentally friendly method because the process proceeds in a closed/isolated system and it saves energy by low synthesis temperature [22,45].…”

“…there are some studies showing that boride compounds can be produced by autoclave synthesis route in different morphologies like rods, cubes or flakes[23,24,44]. Zhang et al…”

An investigation on the formation mechanism of nano CrB2 powder in the Mg–B2O3–Cr2O3 system

“…A few more alternate routes have also been reported in literature. Ma et al [2] has prepared CrB nanorods via a reduction-boronation route at 650°C in the molten salt of anhydrous aluminum trichloride in an autoclave. The floss-like nanocrystalline CrB powders were synthesized in an autoclave by using Mg, CrCl 3 and MgB 2 as the reactants at 600°C [14].…”

“…In recent years, chromium diboride (CrB 2 ) as a transition metal boride is recognized as a potential candidate for high-temperature structural applications because of some outstanding properties such as high melting points (2473 K), high hardness (Vickers 50 gr: 1800 kg/mm 2 ), good abrasive resistance and high temperature oxidation resistance [1][2][3][4]. CrB 2 shows potential not only as a high-temperature structural material, but also as a hard coating or a protective layer on tools and materials exposed to wear and corrosion [5].…”

Polymer-controlled synthesis of Fe3O4 single-crystal nanorods

“…To possess enhanced electrical, magnetic, optical, and mechanical properties, these 1D materials need to be of small diameter, high aspect ratio, and uniform orientation [2]. Since the discovery of carbon nanotubes in 1991 [3], many attempts have been made to fabricate 1D nanostructure materials such as carbon nanotubes, metals, semiconductors, and conductive polymer nanorods or nanowires [4][5][6][7]. Among these, we also succeeded in preparing aligned 1D carbon nanotubes and polymer nanofibers, whose surfaces show special wettability [8][9][10][11][12].…”