Formation of the Ni31Si12 phase induced by the irradiation of nickel ions on the eutectic, α-Ni-Ni3Si-monoclinic, with a 380 dpa dose

Camacho-Olguín, Carlos Alberto; Garcı́a-Bórquez, A.; Ángel, V. Paz del; Montoya, J.A.; González-Rodríguez, Carlos Alberto; Ramos-Tercero, Luz María; Cruz-Mejía, Héctor; Rodríguez-Díaz, Roberto

doi:10.1080/10420150.2020.1793338

Cited by 2 publications

(2 citation statements)

References 19 publications

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“…On the other hand a-Ni-Ni 3 Si eutectic irradiated with Ni-ions and annealed at 620 °C can be transformed to the Ni 31 Si 12 intermetallic phase of the hexagonal structure. [44] In our investigation, the appearance of the amorphous structure at the beginning of interphase transformation can be caused by the current flowing across the material (similar effect to the ion implantation), but with further annealing, a fully crystalline structure is formed. Similarly, in [45] the original Ni-Si solid solution appears, which is then transformed subsequentially to Ni 3 Si, Ni 31 Si 12 to finally Ni 2 Si phase.…”

Section: Discussionmentioning

confidence: 65%

Microstructural Evolution of Ni-SiC Composites Manufactured by Spark Plasma Sintering

Chmielewski

Zybała

Strojny-Nędza

et al. 2023

Metall Mater Trans A

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The presented paper concerns the technological aspects of the interface evolution in the nickel-silicon carbide composite during the sintering process. The goal of our investigation was to analyse the material changes occurring due to the violent reaction between nickel and silicon carbide at elevated temperatures. The nickel matrix composite with 20 vol pct SiC particles as the reinforcing phase was fabricated by the spark plasma sintering technique. The sintering tests were conducted with variable process conditions (temperature, time, and pressure). It was revealed that the strong interaction between the individual components and the scale of the observed changes depends on the sintering parameters. To identify the microstructural evolution, scanning electron microscopy, energy dispersive spectroscopy, transmission electron microscopy, X-ray diffraction, and Raman spectroscopy were used. The silicon carbide decomposition process progresses with the extension of the sintering time. As the final product of the observed reaction, new phases from the Ni-Si system and free carbon were detected. The step-by-step materials evolution allowed us to reveal the course of the reaction and the creation of the new structure, especially in the reaction zone. The detailed analysis of the SiC decomposition and formation of new components was the main achievement of the presented paper.

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Section: Discussionmentioning

confidence: 65%

Microstructural Evolution of Ni-SiC Composites Manufactured by Spark Plasma Sintering

Chmielewski

Zybała

Strojny-Nędza

et al. 2023

Metall Mater Trans A

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“…Because ion irradiation can deposit high energy densities locally in relatively short time periods, it could be used to evade thermodynamic constraints and create microstructures containing non-thermodynamic equilibrium phases [3,4].…”

Section: Introductionmentioning

confidence: 99%

Surface Microstructure Changes Induced by Ion Beam Irradiation

A. Camacho Olguín,

García Bórquez,

A. González Rodríguez

et al. 2023

Ion Beam Technology and Applications

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As a study result of irradiation-induced damage, various mathematical models have been developed to explain the phenomenon of irradiation-induced surface sputtering, these models are currently used in technological fields as diverse as materials characterization and in thin film deposition used in the manufacture of electronic or medical components. However, the phenomenon is not fully understood due to its high complexity, this work has the goal to present experimental evidence of the changes induced in the surface of hypereutectic alloy Ni-22% at Si promoted by the nickel ion beam irradiation, the surface changes induced will be explained in terms of the Sigmund theory of surface sputtering.

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Formation of the Ni₃₁Si₁₂ phase induced by the irradiation of nickel ions on the eutectic, α-Ni-Ni₃Si-monoclinic, with a 380 dpa dose

Cited by 2 publications

References 19 publications

Microstructural Evolution of Ni-SiC Composites Manufactured by Spark Plasma Sintering

Microstructural Evolution of Ni-SiC Composites Manufactured by Spark Plasma Sintering

Surface Microstructure Changes Induced by Ion Beam Irradiation

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