منابع مشابه
Preparation of nanocrystalline TiN coated cubic boron nitride powders by a sol-gel process.
Cubic boron nitride (cBN) particles coated with 20 wt% nanocrystalline TiN were prepared by coating the surface of cBN particles with TiO2, followed by nitridation with NH3 gas at 900 degrees C. Coating of TiO2 on cBN powders was accomplished by a sol-gel process from a solution of titanium (IV) isopropoxide and anhydrous ethanol. An amorphous TiO(x) layer of 50 nm thickness was homogenously fo...
متن کاملElasticity of cubic boron nitride under ambient conditions
Jin S. Zhang, Jay D. Bass, Takashi Taniguchi, Alexander F. Goncharov, Yun-Yuan Chang, and Steven D. Jacobsen Department of Geology, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan Geophysical Laboratory, Carnegie Institution of Washington, Washington D.C. 20015, USA Department of Earth...
متن کاملField emission mechanism from nanocrystalline cubic boron nitride films
An electron-emission theoretical model integrating the change in the grain size of nanocrystalline cubic boron nitride (c-BN) thin films was established. To understand better the essence of field emission, an accurate numerical scheme, the transfer matrix method, that can be used to compute the tunneling coefficients of the actual surface barrier, was also adopted. The present results show that...
متن کاملInfrared ellipsometry on hexagonal and cubic boron nitride thin films
Infrared ellipsometry on hexagonal and cubic boron nitride thin films" (1997).
متن کاملResonant Raman scattering in cubic and hexagonal boron nitride
We measured firstand second-order Raman scattering in cubic and hexagonal boron nitride using excitation energies in the visible and in the UV. The nonresonant first-order Raman susceptibilities for cubic and hexagonal BN are 1 and 10 Å2, respectively. Raman scattering is thus very powerful in detecting the hexagonal phase in mixed thin boron nitride films. In cubic BN the constant Raman sucsep...
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ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1965
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.68.5_1016