Ion beam forming of a shell type natural single crystal diamond stylus and sharpening of it by swinging a conical type diamond stylus

2012 ◽  
Vol 24 ◽  
pp. 139-145 ◽  
Author(s):  
S.F. Mahmud ◽  
R. Fukuyama ◽  
S.A. Pahlovy ◽  
I. Miyamoto
1994 ◽  
Vol 354 ◽  
Author(s):  
Shuji Kiyohara ◽  
Iwao Miyamoto

AbstractIn order to apply ion beam etching with hydrogen ions to the ultra-precision processing of diamond tools, hydrogen ion beam etching characteristics of single crystal diamond chips with (100) face were investigated. The etching rate of diamond for 500 eV and 1000 eV hydrogen ions increases with the increase of the ion incidence angle, and eventually reaches a maximum at the ion incidence angle of approximately 50°, then may decrease with the increase of the ion incidence angle. The dependence of the etching rate on the ion incidence angle of hydrogen ions is fairly similar to that obtained with argon ions. Furthermore, the surface roughness of diamond chips before and after hydrogen ion beam etching was evaluated using an atomic force microscope. Consequently, the surface roughness after hydrogen ion beam etching decreases with the increase of the ion incidence angle within range of the ion incidence angle of 60°.


Vacuum ◽  
2010 ◽  
Vol 84 (12) ◽  
pp. 1423-1426 ◽  
Author(s):  
Takashi Nagase ◽  
Hiroyuki Kato ◽  
Shahjada A. Pahlovy ◽  
Iwao Miyamoto

2016 ◽  
Vol 70 ◽  
pp. 159-166 ◽  
Author(s):  
Noritaka Kawasegi ◽  
Seiya Kuroda ◽  
Noboru Morita ◽  
Kazuhito Nishimura ◽  
Makoto Yamaguchi ◽  
...  

2014 ◽  
Vol 49 ◽  
pp. 14-18 ◽  
Author(s):  
Noritaka Kawasegi ◽  
Kazuma Ozaki ◽  
Noboru Morita ◽  
Kazuhito Nishimura ◽  
Hideki Sasaoka

2016 ◽  
Vol 874 ◽  
pp. 543-548 ◽  
Author(s):  
Noritaka Kawasegi ◽  
Kazuma Ozaki ◽  
Noboru Morita ◽  
Kazuhito Nishimura ◽  
Makoto Yamaguchi ◽  
...  

Texturing on the surface of cutting tools is an effective method to improve the friction and resultant machining performances of the tool. In this study, to fabricate nanotextures on various tools used for precision cutting, a patterning method on nanopolycrystalline diamond and cubic boron nitride tools was investigated using focused ion beam (FIB) irradiation and heat treatment. Patterning was possible using this method, and the patterning characteristics were different from those of single-crystal diamond. This method was more suitable for cutting tools compared with direct FIB machining because of its high efficiency and significantly low affected layer.


2019 ◽  
Author(s):  
Sichen Mi ◽  
Adrien Toros ◽  
Teodoro Graziosi ◽  
Niels Quack

2005 ◽  
Vol 17 (20) ◽  
pp. 2427-2430 ◽  
Author(s):  
P. Olivero ◽  
S. Rubanov ◽  
P. Reichart ◽  
B. C. Gibson ◽  
S. T. Huntington ◽  
...  

Vacuum ◽  
2006 ◽  
Vol 80 (7) ◽  
pp. 793-797 ◽  
Author(s):  
Jun Taniguchi ◽  
Hirohisa Ohno ◽  
Yusaku Kawabata ◽  
Iwao Miyamoto

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