The spectral main peak at 380nm, in the ultraviolet region, have been obtained from the diamond thin films EL device, which with three layer structure.
The Murnaghan isothermal equation of state for the sample is fitted with the bulk modulus at zero pressure, B0 = 335±34GPa, and its pressure deviation B0-4. 21. The other method is the synchrotron radiation X-ray energy dispersive diffraction (EDXD) by which the isothermal equation is studied with improved Mao-Bell type diamond anvil cell up to 25GPa.
Through investigating the diamond-silicon grinding system, the grinding mechanism, including chip removal and subsurface damage, is discussed with the aid of the molecular dynamics (MD) approach and grinding experiments.
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Ultra-precision ductile grinding of BK7 using super abrasive diamond wheel
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Under optimised conditioning parameters, the super abrasive diamond wheel was well conditioned in terms of a minimized run-out error and flattened diamond grain surfaces of constant peripheral envelope.
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Aggregation Stability of SiO2, FeOOH, ZrO2, CeO2, and Natural Diamond Sols and Their Binary Mixtures: 1.
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The aggregation stability of SiO2 (aerosil OX-50), FeOOH, ZrO2 CeO2, and natural diamond sols was studied by photometry over a wide range of KCl and BaCl2 concentrations at pH 6 and 3.
A computer program has been given for calculating the fundamental data of reciprocal lattice planes, with special attention paid to the problem of systematic extinctions for phase analysis by electron diffraction methods. Satisfactory results have been obtained in the cases of diamond, spinel as well as hexagonal closepacked structures.
In the present paper, the aggregate crystals of boron-skin diamond have been studied and preproduced, using the single crystal materials of yellow diamond prodqced by ordinary, methods. Either one of the two treatments. of these materals may be used, that is, by adding boron atoms to their surfaces, or by doping boron atoms of small amount in adhesive to skin over the surfaces of the diamond single crystals and to strengthen the adhesive. Withthe boron atoms introduced, the reconstruction ...
An ultrahigh pressure diamond-anvil cell is constructed for the usage of methods of X-ray and optical examination.Furthermore the visual observations were made for the phase transitions of some materials under high pressure by the aid of a polarizing microscope,many interesting phenomena being observed and a number of tests done for the qualities of the cell.It is concluded that the cell works realiably at least under the pressure of 30GPa.