Effect of H and He irradiation on cavity formation and blistering in ceramics

Resistance to He2+ irradiation damage in metallic glass Ta38Ni62

“…Helium ion beam irradiation exists in the universe and in other irradiation environments [18]. Helium concentrates in irradiated crystalline materials, forms helium bubbles near the peak helium concentration area, and causes the appearance of material swelling, blistering, peeling, embrittling, and cracking from irradiation damage, which results in material aging and mechanical performance degradation [19][20][21]. A study of the irradiation resistance of Ni-based metallic glass with helium ion beam irradiation would therefore be useful.…”

Resistance to He2+ irradiation damage in metallic glass Fe80Si7.43B12.57

“…As to the use of ion beam irradiation for exploring the irradiation resistance of materials [4], the interaction of helium ions with lattice defects is stronger than that of hydrogen ions with lattice defects [5], and helium ions are difficult to dissolve in metal, thus helium bubbles may be formed in the peak helium concentration areas near the surfaces of the materials [6], which play an crucial part in formation of blisters [7] even a separating layer [8]. Moreover, helium ion beam irradiation also may cause greater changes in material properties, resulting in very serious damage to conventional crystalline materials [9].…”

Surface, structural and tensile properties of proton beam irradiated zirconium

“…These studies have facilitated in providing useful information about different materials that can be used in irradiation environment [1]. Therefore, a considerable interest has been raised in this area to investigate the radiation induced damage in structural materials that are used in the nuclear reactors [2,3]. The literature reveals that the bombardment of metals and alloys with energetic particles such as protons, neutrons and ions with a range of energies (generally varying from eV to few MeV) can generate a large number of localized defects such as vacancies, interstitials and their clusters [4].…”

“…These protons can significantly influence the integrity of structural components through the formation of voids, surface swelling, and bubbles blistering in the structural materials [12]. A number of attempts have been made to investigate the bubbles induced blistering in proton beam irradiated Zr [1][2][3]8], however, determination of minimum (threshold) dose for the bubbles formation in proton beam irradiated Zr is still questionable. The identification of threshold dose for bubbles formation in Zr may be helpful in order to develop next-generation nuclear reactors having strong structural capability and long operational time [1,13].…”