| 摘要 |
FIELD: nanotechnology, possible use in chemical industry, electronics, medicine, mechanical engineering for producing plastics, fuel cell components, accumulators, super-capacitors, displays, electron emitters, prosthetics materials. ^ SUBSTANCE: in reaction pipe having an inlet window, graphitic cover-rod is mounted with composite graphitic target located in the channel of cover-rod. The target is prepared by mixing at room temperature of powders of graphite, nickel and yttrium oxide with atomic ratio Ni:Y equal to (4-10):1. Nickel and yttrium content in composite target - 1-10% at. Then the mixture is placed in the channel of graphitic cover-rod and packed. Protective diaphragm screen is installed between the window and the target. Laser evaporation of the target is performed by continuous CO2 laser with power not less than 0,5 kWt with irradiation density not less than 1.104 Wt/cm2, with blow-off by constant flow of inert gas under atmospheric pressure. Resulting one-wall carbon nanotubes are gathered in collector, made in form of metallic substrates, positioned along the length of reaction pipe. ^ EFFECT: simplified manufacture of composite graphitic targets for laser ablation, ensured high quality and high nanotube output, substantially lowered labor, energy and time costs. ^ 3 cl, 5 dwg |
