Diamond synthesis by high-velocity thermal spray: The laboratory analogue of a meteorite impact

Authors
Goswami, R Herman, H Sampath, S Parise, JB
Citation
R. Goswami et al., Diamond synthesis by high-velocity thermal spray: The laboratory analogue of a meteorite impact, J MATER RES, 15(1), 2000, pp. 25-28
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS RESEARCH
ISSN journal
08842914 → ACNP
Volume
15
Issue
1
Year of publication
2000
Pages
25 - 28
Database
ISI
SICI code
0884-2914(200001)15:1<25:DSBHTS>2.0.ZU;2-9
Abstract
Nanocrystalline-diamond particles were produced in the form of a coating by depositing Ni-clad graphite powder in a high-velocity thermal spray experi ment. Particles were accelerated to impact and formed a thick film (>20 mu m) on a steel substrate, with the high-velocity impact generating a shock w ave, which propagates through the particle and the underlying deposits. Tra nsmission electron microscopy revealed that this deposit contains cubic dia mond nanocrystals having a size range of 5 to 10 nm in graphite. In additio n to diamond, it was observed that a portion of the deposit contains "close d-curved graphite."