Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5467274 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2017 | 5 Pages |
Abstract
In this work, we studied the surface modification of LiNbO3 and KTa1âxNbxO3 irradiated by intense pulsed ion beam, which was mainly composed of H+ (70%) and Cn+ (30%) at an acceleration voltage of about 450Â kV. The surface morphologies, microstructural evolution and elemental analysis of the sample surfaces after IPIB irradiation have been analyzed by scanning electron microscope, atomic force microscope, X-ray diffraction and energy dispersive spectrometer techniques, respectively. The results show that the surface morphologies have significant difference impacted by the irradiation effect. Regular gully damages range from 200 to 400Â nm in depth appeared in LiNbO3 under 2Â J/cm2 energy density for 1 pulse, block cracking appeared in KTa1âxNbxO3 at the same condition. Surface of the crystals have melted and were darkened with the increasing number up to 5 pulses. Crystal lattice arrangement is believed to be the dominant reason for the different experimental results irradiated by intense pulsed ion beam.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
Xiaojun Cui, Jie Shen, Haowen Zhong, Jie Zhang, Xiao Yu, Guoying Liang, Miao Qu, Sha Yan, Xiaofu Zhang, Xiaoyun Le,