Microstructure evolution of beryllium with argon ion irradiation

Smoothing of polycrystalline copper with rough surface by oblique argon-ion irradiation

Irradiation Induced Microstructure Evolution in Nanostructured Materials: A Review

Nanostructured (NS) materials may have different irradiation resistance from their coarse-grained (CG) counterparts. In this review, we focus on the effect of grain boundaries (GBs)/interfaces on irradiation induced microstructure evolution and the irradiation tolerance of NS materials under irradiation. The features of void denuded zones (VDZs) and the unusual behavior of void formation near G...

Thermal evolution of Venus with argon degassing

Decades-old measurements of atmospheric and elemental surface composition constrain the history of Venus. In this study, we search for a model featuring continuous evolution in the stagnant-lid regime that predicts the present-day atmospheric mass of radiogenic argon and satisfies the other available constraints. For comparison, we also consider the end-member scenario of a single catastrophic ...

A Study of Surface Modification of Poly(lactic-co-glycolic) Acid Using Argon Ion Irradiation

The effect of Argon ion irradiation to the surface properties of poly(lactic-co-glycolic) acid (PLGA) was studied. A beam of 170 keV Argon ions was implanted at different fluencies (1 × 1012, 1 × 1013, 1 × 1014, and 1 × 1015 ions/cm2). X-ray photoelectron spectroscopy (XPS) was used to analyze the evolution of the bonding microstructure of PLGA due to irradiation. Surface morphology was monitor...

Transient heating and melting transformations in argon-ion laser irradiation of polysilicon films

Undoped, thin silicon films have been deposited at different temperatures on fused quartz substrates by low-pressure chemical vapor deposition. The heating of these films by continuous wave, argon-ion laser beam irradiation has been studied. In situ, normal incidence reflectivity measurements have been obtained at specified locations in the semiconductor films. Melting and recrystallization phe...