defect n. 1.缺陷,缺點(diǎn),弱點(diǎn);短處。 2.不足,缺乏。 have some defect in eyesight 目力不佳。 have the defects of one's qualities 美中不足之處。 in defect of 若無…時;因無。 vi. 叛變;逃走。 He defected to the West. 他叛逃到西方。
The studies on optical properties and irradiation effect of heavy ion implanted samples are very important from both theoretical and applied view points . in this work , the optical properties and defect structures in xe + - implanted ysz and ni + - implanted al2o3 were studied by using optical spectroscopy , tem , xps and trim 96 calculation . it was found that 1 ) a broad absorption band centered at 522 nm was observed in 1 1016 cm - 2 xe + - implanted ysz 離子注入是一種重要的表面改性技術(shù), ysz ( yttria - stabilizedcubiczirconia )和- al _ 2o _ 3是兩種性能優(yōu)良的陶瓷,前者是目前發(fā)現(xiàn)的最抗輻照的絕緣體,而后者則是抗輻照最差的絕緣體材料之一,研究重離子注入對其光學(xué)性能的影響并以此研究輻照效應(yīng),有重要的理論意義和應(yīng)用價值。