Ejection of clusters from solid surface by impact of size-selected cluster ion

Yasumatsu, Hisato; Yamaguchi, Yasutaka; Kondow, Tamotsu

doi:10.1080/00268970701881162

Cited by 6 publications

(2 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hypervelocity impact of nanosized specimens on metals has gained much popularity in recent years due to its enormous applications in the design of armor [3,4] modification of any surface [5,6] impact with micrometeorites [7,8], ballistic penetration [9,10], and also in the development of cluster technology [11]. Experimental and theoretical studies were done to understand the dynamic mechanism of microjet from a grooved metal produced from hypervelocity impact [12].…”

Section: Introductionmentioning

confidence: 99%

Atomistic assessment of structural evolution for magnesium during hypervelocity nanoprojectile penetration

2022

View full text Add to dashboard Cite

In the present study, the effect of ballistic penetration of a spherical projectile on a monocrystalline magnesium specimen is performed using Embedded Atom Method (EAM) potential in Molecular Dynamics (MD) simulation. The dynamic investigation of structural evolution based on common neighbor analyses and Wigner-Seitz defect analysis are carried out for the varying depth of penetration and velocities of the projectile ( v = 2 km/s, 6 km/s, and 10 km/s). It is found that the extent of amorphization in the specimen is more in the case of higher depth and lower projectile velocity. Voronoi cluster analyses are also done to identify cluster distribution and their transformation during ballistic penetration, which is accompanied by atomic strain and displacement vector evaluation to give light to the effect of shear strain and displacement of atoms respectively. According to Voronoi cluster analysis, Voronoi Polyhedra having <0,4,4,6> and <0,6,0,8> exhibits a higher population during hypervelocity projectile penetration. The findings have potential applications in hypervelocity applications such as defense and space technologies.

show abstract

Section: Introductionmentioning

confidence: 99%

Atomistic assessment of structural evolution for magnesium during hypervelocity nanoprojectile penetration

2022

View full text Add to dashboard Cite

show abstract

“…The sputtering phenomena have been widely studied by Sigmund since the 60s in the last century [36,[48][49][50][51]. A lot of his pioneering work in sputtering theory has since been frequently used as a reference standard in experimental research [52][53][54][55]. Based on the surface microroughening mechanism proposed by Sigmund [47], Bradley and Harper established a theoretical model explaining the origin of periodic ripple topography formed by off-normal ion beam bombardment [44].…”

Section: The Bradley and Harper Model: Surface Erosion Velocity And Smentioning

confidence: 99%

A study of semiconductor nanostructures formed by surface modification

Wang¹

View full text Add to dashboard Cite

Semiconductor nanostructures formed by a surface modification process caused by ion sputtering is studied in this thesis. The microscopic dynamics of the semiconductor surface undergoing ion impingement is discussed in detail. Due to the promising controllability and minimal damage creation on the substrate, low ion ABSTRACT iv suggests that the reported fabrication technique is significant for applications that aim to improve the radiative efficiency of GaAs/AlGaAs QDs by RTA without introducing large undesirable blueshift.

show abstract