Preparation of superhydrophobic nanodiamond and cubic boron nitride films Appl. Phys. Lett. 97, 133110 (2010); 10.1063/1.3494269 Preparation of cubic boron nitride films by radio frequency bias sputtering J. Vac. Sci. Technol. A 13, 2843 (1995); 10.1116/1.579715 Electron optical characterization of cubic boron nitride thin films prepared by reactive ion platingThe preparation of a cubic boron nitride film by physical vapor deposition processes has been investigated. The electron beam guns of a hollow cathode discharge type and a conventional highvoltage type were used for the boron evaporation source. The stoichiometric boron nitride film could be obtained by using a gas activation nozzle. It was necessary to apply the rfbias potential to the substrate to accelerate the formation of the cubic BN phase. It was found that mixing argon gas to the reactant gas N z assists the formation of cubic phase. The film structure was characterized by the infrared absorption spectrum and transmission electron diffraction observation. The microhardness of the cubic boron nitride film obtained was estimated to be about 4000 kg/mm2.
The influence of 20kHz ultrasonic energy on metallurgical properties of cold rolled sheet steel specimens during annealing was investigated. Acoustic energy caused an acceleration in grain growth rate. Annealing texture was also modified by ultrasound as well as the grain growth was enhanced. As a result of these effects, the ductility of the sheet steel for press forming was increased appreciably, and the drawability hence much improved. Efficiency of over-aging treatment in a continuous annealing process of sheet steel was nearly doubled by ultrasonic irradiation during over-aging.
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