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

被引：0
|
作者：
R. Goswami
H. Herman
S. Sampath
J. B. Parise
机构：
[1] State University of New York at Stony Brook,Center for Thermal Spray Research, Department of Materials Science and Engineering
[2] State University of New York at Stony Brook,Department of Geosciences and Center for High Pressure Research
来源：
Journal of Materials Research | 2000年 / 15卷
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摘要：
Nanocrystalline-diamond particles were produced in the form of a coating by depositing Ni-clad graphite powder in a high-velocity thermal spray experiment. Particles were accelerated to impact and formed a thick film (>20 μm) on a steel substrate, with the high-velocity impact generating a shock wave, which propagates through the particle and the underlying deposits. Transmission electron microscopy revealed that this deposit contains cubic diamond nanocrystals having a size range of 5 to 10 nm in graphite. In addition to diamond, it was observed that a portion of the deposit contains “closed-curved graphite.”
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页码：25 / 28
页数：3
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