The surface topography and microstructure change of densified nanopore nuclear graphite impregnated with polyimide and irradiated by xenon ions

doi:10.1016/j.apsusc.2020.147408

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	The surface topography and microstructure change of densified nanopore nuclear graphite impregnated with polyimide and irradiated by xenon ions
	Zhang, HY ; Song, JL ; Tang, ZF ; Liu, ZJ ; Liu, XD
刊名	APPLIED SURFACE SCIENCE
	2020
卷号	531 页码:-
关键词	X-RAY-DIFFRACTION TRANSMISSION ELECTRON-MICROSCOPY ORIENTED PYROLYTIC-GRAPHITE LIQUID FLUORIDE SALT MOLTEN-SALT NEUTRON-IRRADIATION DIMENSIONAL CHANGES XE-135 PENETRATION ISOTROPIC GRAPHITE BARRIER PROPERTY
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2020.147408
文献子类	期刊论文
英文摘要	The densified isostatic graphite (D-IG-110) was obtained from isostatic graphite (IG-110) by impregnating with polyimide, which reduced the median pore diameter of IG-110 from 2.060 mu m to 0.065 mu m. The D-IG-110 samples were irradiated with 7 MeV Xe26+. The surface morphology and microstructure changes of samples were characterized by scanning electron microscopy, grazing incidence X-ray diffraction and Raman spectroscopy, respectively. The initial graphitization degree of D-IG-110 is slightly reduced due to the amorphous structure of polyimide-derived carbon (polyimide-C). Graphite crystals undergo lattice expansion along the c axis under irradiation. Compared with IG-110, D-IG-110 samples have a lower crystallite size change rate along the C-axis, and the polyimide-C in D-IG-110 can as a buffer for this expansion. The polyimide-C shrunk after irradiation at lower surface irradiation dose (0.02 dpa) caused by irradiation-induced graphitization, and turned to expand with the further increase in dose. The D-IG-110 samples irradiated at lower dose, the lower shrinkage rate of crystallite sizes along a-axis in the region containing polyimide-C than IG-110 also indicates the irradiation-induced graphitization, and polyimide-C also slows down the rapid increase in surface residual stress.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/33200]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China 2.Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 4.Shandong Univ, Sch Phys, Jinan 250100, Peoples R China 5.Chinese Acad Sci, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Zhang, HY,Song, JL,Tang, ZF,et al. The surface topography and microstructure change of densified nanopore nuclear graphite impregnated with polyimide and irradiated by xenon ions[J]. APPLIED SURFACE SCIENCE,2020,531:-.
APA	Zhang, HY,Song, JL,Tang, ZF,Liu, ZJ,&Liu, XD.(2020).The surface topography and microstructure change of densified nanopore nuclear graphite impregnated with polyimide and irradiated by xenon ions.APPLIED SURFACE SCIENCE,531,-.
MLA	Zhang, HY,et al."The surface topography and microstructure change of densified nanopore nuclear graphite impregnated with polyimide and irradiated by xenon ions".APPLIED SURFACE SCIENCE 531(2020):-.