The effect of Ar+ irradiation on grain growth and reducing reaction temperature in Pd-silicide formation

Lee, R.Y.; Choi, Boyoon; Song, J. H.; Kim, K.W.; Kang, S.T.; Whang, C. N.; Smith, Richard J.

doi:10.1016/0168-583x(91)95273-g

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…Initially when ion fluence increases from 6.9 × 10 13 to 21 × 10 13 ions/cm 2 in Ni, a decrease in crystallite size (Figure 5E), whereas an increase in agglomeration (Figure 2C) is observed which is attributed to the fact that smaller crystallites merge together to form large agglomers. The decrease in crystalline size is also due to rapid melting, quenching and recrystallisation process 36 . As we increase the ion fluence, greater amount of energy is deposited and it generates the more thermal spikes.…”

Section: Resultsmentioning

confidence: 99%

“…The decrease in crystalline size is also due to rapid melting, quenching and recrystallisation process. 36 As we increase the ion fluence, greater amount of energy is deposited and it generates the more thermal spikes. So more material is ejected out from the Ni surface which leads to the agglomeration of particulate observed at initial ion fluence.…”

Section: Crystallite Size Dmentioning

confidence: 99%

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Investigation of 500 keV Si ion induced surface structuring of Ni and Ti for enhancement of field emission properties

Ahmad

Bashir

Akram

et al. 2022

Surface & Interface Analysis

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The present paper reports the investigation of surface morphology, elemental composition, phase changes and field emission properties of Si ion irradiated nickel (Ni) and titanium (Ti). The Ni and Ti targets have been irradiated with 500 keV Si ions generated by Pelletron accelerator at various fluences ranging from 6.9 × 1013 to 77.1 × 1013 ions/cm2. Stopping range of ions in matter analysis revealed higher values of electronic stopping and sputtering yield for Ni as compared with Ti. For both irradiated metals, electronic energy loss dominant over the nuclear stopping. The growth of induced surface structures have been analysed by using field emission scanning electron microscopy (FESEM) analysis. In case of Ni, as the ion fluence increases from 6.9 × 1013 to 65.8 × 1013 ions/cm2, the formation of spherical particulates, agglomers and sputtering is observed. Although in the case of Ti, with the increase of Si ion fluence from 11.6 × 1013 to 77.1 × 1013 ions/cm2, the formation of irregular‐shaped particulates along with crater and sputtered channels is observed. X‐ray diffraction (XRD) analysis shows that no new phase is identified. However, a significant increase in peak intensity is observed with increasing ion fluence. The variation in crystallite size and dislocation line density is also observed as a function of Si ion fluence. Fourier transform infrared spectroscopy analysis shows that no bands are formed after the Si ion irradiation. Field emission properties of ion‐structured Ni and Ti are well correlated with the growth of surface structures observed by SEM and dislocation line density evaluated by XRD analysis.

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Section: Resultsmentioning

confidence: 99%

Section: Crystallite Size Dmentioning

confidence: 99%

Investigation of 500 keV Si ion induced surface structuring of Ni and Ti for enhancement of field emission properties

Ahmad

Bashir

Akram

et al. 2022

Surface & Interface Analysis

View full text Add to dashboard Cite

show abstract

“…The main reason for diminution of peak intensity and crystalline size is rapid melting, quenching and recrystallization process which take place during resolidification after ion material interaction. 48 The large amount of energy, pressure, displacement and thermal spike are the responsible to destroy the crystallinity which causes to produce the large number of defects and dislocations. Therefore, large sized grains break up into smaller sized grain and the destroy the crystallinity which is cause of decrease in peak intensity and crystallite size.…”

Section: -12mentioning

confidence: 99%

Modifications in surface, structural and mechanical properties of brass using laser induced Ni plasma as an ion source

et al. 2016

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Laser induced Ni plasma has been employed as source of ion implantation for surface, structural and mechanical properties of brass. Excimer laser (248 nm, 20 ns, 120mJ and 30 Hz) was used for the generation of Ni plasma. Thomson parabola technique was employed to estimate the energy of generated ions using CR39 as a detector. In response to stepwise increase in number of laser pulses from 3000 to 12000, the ion dose varies from 60 × 1013 to 84 × 1016 ions/cm2 with constant energy of 138 KeV. SEM analysis reveals the growth of nano/micro sized cavities, pores, pits, voids and cracks for the ion dose ranging from 60 × 1013 to 70 × 1015 ions/cm2. However, at maximum ion dose of 84 × 1016 ions/cm2 the granular morphology is observed. XRD analysis reveals that new phase of CuZnNi (200) is formed in the brass substrate after ion implantation. However, an anomalous trend in peak intensity, crystallite size, dislocation line density and induced stresses is observed in response to the implantation with various doses. The increase in ion dose causes to decrease the Yield Stress (YS), Ultimate Tensile Strength (UTS) and hardness. However, for the maximum ion dose the highest values of these mechanical properties are achieved. The variations in the mechanical properties are correlated with surface and crystallographical changes of ion implanted brass.

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Growth of surface structures correlated with structural and mechanical modifications of brass by laser-induced Si plasma ions implantation

et al. 2017

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The effect of Ar+ irradiation on grain growth and reducing reaction temperature in Pd-silicide formation

Cited by 5 publications

References 9 publications

Investigation of 500 keV Si ion induced surface structuring of Ni and Ti for enhancement of field emission properties

Investigation of 500 keV Si ion induced surface structuring of Ni and Ti for enhancement of field emission properties

Modifications in surface, structural and mechanical properties of brass using laser induced Ni plasma as an ion source

Growth of surface structures correlated with structural and mechanical modifications of brass by laser-induced Si plasma ions implantation

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