SCANNING-TUNNELING-MICROSCOPY MEASUREMENTS OF THE INITIAL EROSION OF GRAPHITE BY HYPERTHERMAL ATOMIC OXYGEN AND NEON

被引：7
|
作者：
MATLIS, S
VERED, R
LEMPERT, GD
MAROM, G
LIFSHITZ, Y
机构：
[1] SOREQ NUCL RES CTR,DEPT APPL PHYS & MATH,IL-70600 YAVNE,ISRAEL
[2] HEBREW UNIV JERUSALEM,CASALI INST APPL CHEM,IL-91904 JERUSALEM,ISRAEL
来源：
COMPOSITES SCIENCE AND TECHNOLOGY | 1993年 / 48卷 / 1-4期
关键词：
ATOX; STM; HOPG; LEO; ION BOMBARDMENT;
D O I：
10.1016/0266-3538(93)90147-9
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Highly ordered pyrolitic graphite (HOPG) was bombarded by low-energy (approximately 30 eV) O+ and Ne+ at fluxes in the range of 10(15)-10(16) ions cm-2. The initial erosion of a few monolayers was studied with the aid of scanning tunneling microscopy (STM). Damage consisting of hillocks was observed for both O+ and Ne+, and the damage density increased with dose. O+-bombarded surfaces exhibited partial exfoliation of one to two monoatomic layers (probably as a result of chemical erosion), which was absent for Ne+ bombardment. Surface reconstruction of damaged areas was observed. The present work is the first step in an STM study of the effects of atomic oxygen erosion of graphite/epoxy composites in space.
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页码：301 / 305
页数：5
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