论文部分内容阅读
Electron beam damage and charging process in 9mol%Y2O3-stabilized zirconia (YS-ZrO2) are studied by Augerelectron spectroscopy (AES). Electron bombardment induces electron-stimulated desorption at the surface on one hand;on the other hand, it modifies the preexisting defects in the irradiated zone. Both effects will lead to charging-up ofYS-ZrO2. The charging related to the first effect can be compensated by an O2 environment of 6.5× 10-6 Pa, and thecharging related to both effects can be inhibited by specimen heating up to 300 ℃. However, the modified preexistingdefects will not retu to their initial states prior to the radiation. Their charging behavior and charge compensationare discussed in the model of the variants of the oxygen vacancies.