Effects of the Layered Graphite Structure at High Fluences of 30 keV Helium Ion Irradiation

被引：0
|
作者：
Andrianova, N. N. [1 ,2 ]
Borisov, A. M. [1 ,2 ,3 ]
Vorobyeva, E. A. [1 ]
Ovchinnikov, M. A. [1 ]
Sleptsov, V. V. [2 ]
Tsyrkov, R. A. [2 ]
机构：
[1] Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119991, Russia
[2] Natl Res Univ, Moscow Aviat Inst, Moscow 125993, Russia
[3] Moscow State Technol Univ STANKIN, Moscow 127994, Russia
来源：
PHYSICS OF ATOMIC NUCLEI | 2024年 / 87卷 / 09期
关键词：
fine-grained dense graphite; highly-oriented pyrolytic graphite; ion irradiation; He+ ions; radiation damage; surface morphology; graphite delamination; electron microscopy; Raman spectroscopy; DAMAGE; TUCK; RUCK; DEFORMATION; BUCKLE;
D O I：
10.1134/S1063778824090047
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The effect of high-fluence 30 keV helium ion irradiation with the fluence from 10(18) to 3 x 10(18) cm(-2) in the temperature range from room temperature to 600 degrees C on the morphology and surface structure of highly oriented pyrolytic graphite UPV-1T and fine-grained polycrystalline graphite MPG-8 has been studied experimentally. Ion-induced morphological elements complementing those previously established at low irradiation fluences (similar to 10(17) cm(-2)) have been identified. Irradiation of highly oriented pyrolytic graphite at high fluences results in delaminations, which manifest themselves as graphite flakes that are bent, twisted, and have whisker-like structures. Irradiation of fine-grained graphite does not significantly change its microstructure compared to highly oriented pyrolytic graphite.
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收藏
页码：1240 / 1249
页数：10
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