Spiral and Other Growth Forms of Synthetic Diamonds: A Distinction Between Natural and Synthetic Diamond

Nature ◽  
1959 ◽  
Vol 184 (4698) ◽  
pp. 1526-1527 ◽  
Author(s):  
S. TOLANSKY ◽  
I. SUNAGAWA
Author(s):  
Z.L. Wang ◽  
J. Bentley ◽  
R.E. Clausing ◽  
L. Heatherly ◽  
L.L. Horton

It has been found that the abrasion of diamond-on-diamond depends on the crystal orientation. For a {100} face, the friction coefficient for sliding along <011> is much higher than that along <001>. For a {111} face, the abrasion along <11> is different from that in the reverse direction <>. To interpret these effects, a microcleavage mechanism was proposed in which the {100} and {111} surfaces were assumed to be composed of square-based pyramids and trigonal protrusions, respectively. Reflection electron microscopy (REM) has been applied to image the microstructures of these diamond surfaces.{111} surfaces of synthetic diamond:The synthetic diamonds used in this study were obtained from the De Beers Company. They are in the as-grown condition with grain sizes of 0.5-1 mm without chemical treatment or mechanical polishing. By selecting a strong reflected beam in the reflection high-energy electron diffraction (RHEED) pattern, the dark-field REM image of the surface is formed (Fig. 1).


2009 ◽  
Author(s):  
Eduard A. Sosnin ◽  
Eugenii I. Lipatov ◽  
Sergei M. Avdeev ◽  
Victor F. Tarasenko ◽  
Yuri N. Novoselov

2015 ◽  
Vol 35 (10) ◽  
pp. 1016002
Author(s):  
严俊 Yan Jun ◽  
刘晓波 Liu Xiaobo ◽  
陶金波 Tao Jinbo ◽  
张铮 Zhang Zheng ◽  
严雪俊 Yan Xuejun ◽  
...  

Wear ◽  
1982 ◽  
Vol 81 (2) ◽  
pp. 329-346 ◽  
Author(s):  
E.M. Wilks ◽  
J. Wilks

Author(s):  
Evgeniy I. Lipatov ◽  
Alexander G. Burachenko ◽  
Sergey M. Avdeev ◽  
Victor F. Tarasenko ◽  
Michael A. Bublik

1995 ◽  
Vol 31 (4) ◽  
pp. 256-264 ◽  
Author(s):  
James E. Shigley ◽  
Emmanuel Fritsch ◽  
Ilene Reinitz ◽  
Thomas M. Moses

Author(s):  
J.P.F. Sellschop ◽  
S.H. Connell ◽  
C.C.P. Madiba ◽  
E. Sideras-Haddad ◽  
M.C. Stemmet ◽  
...  

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