A comparative study of Fe-Cr unmixing using differential scanning calorimetry and small-angle scattering

Couturier, Laurent; Geuser, F. de; Deschamps, A.

doi:10.1016/j.matchar.2021.110934

Cited by 2 publications

(1 citation statement)

References 41 publications

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“…Information about fabricated composites is presented in Table 3 (Digital Jewelry Scale FC-50 was used to weigh materials). The fabricated powdery granules underwent a detailed study with the help of scanning electron microscopy (SEM), X-ray diffraction (XRD), and differential scanning calorimetry (DSC) [38][39][40][41][42], which was carried out on two appliances: DSC 404 C Pegasus and STA 449 F3 Jupiter (both manufactured by NETZSCH, Germany). In both cases, the heating rate was 20 degrees per minute.…”

Section: Materials Equipment and Research Methodsmentioning

confidence: 99%

Decrease in the Starting Temperature of the Reaction for Fabricating Carbides of Refractory Metals When Using Carbon Nanoparticles as Precursors

et al. 2022

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Metal matrix composites with a matrix of refractory metals (niobium, tungsten) and reinforcing nanodiamond particles were prepared for studying the possibility of decreasing the starting temperature of carbide synthesis. The size of primary nanodiamond particles was 4–6 nm, but they were combined in large-sized agglomerates. Mechanical alloying was used for producing the composites by crushing agglomerates and distributing nanodiamonds evenly in the metal matrix. The initial and fabricated materials were investigated by X-ray diffraction, differential scanning calorimetry, and transmission and scanning electron microscopy. Thermal processing leads to the reaction for carbide synthesis. Studies have found that the usage of carbon nanoparticles (nanodiamonds) as precursors for fabricating carbides of refractory metals leads to a dramatic decrease in the synthesis temperature in comparison with macro-precursors: lower than 200 °C for tungsten and lower than 350 °C for niobium.

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