Evaluation of Intellectual Property Objects in the Nanoindustry Field

Russian Microelectronics - The recently developed nanomaterials and their production technologies as intellectual property objects (IPOs) are considered. The role of the informational-analytical...     

Protective coatings as a means of improving heat resistance of the refractory lining for extra-furnace steelmaking facilities

Protective coatings based on metallic aluminum are developed that can be used to improve the resistance of the refractory lining for extra-furnace steelmaking facilities. By sintering a slurry sprayed on the refractory surface, a heat-resistant gas-impermeable coating containing -corundum is formed.__________Translated from Novye Ogneupory, No. 10, pp. 61 – 63, October, 2004.     

Effect of Burnup and Holding Time of Irradiated Nuclear Fuel on the Mass Ratio of Am, Cm, Np, and Fissioning Plutonium

Computed estimates of the mass ratio of Am, Cm, Np, and plutonium for different burnup of VVÉR and RBMK fuel and the post-reactor holding time are presented. The holding time for which this ratio reaches the admissable value 0.32 is determined.     

Grain size composition and distribution in drill cuttings in the electric impulse destruction of rocks

The present studies into the granularity and grain size distribution in drill cuttings after electric impulse destruction of rocks show that the grain size composition and distribution are mostly affected by the interelectrode spacing, energy deposition in the discharge channel and rock strength. The increase in the spacing and strength of rocks raises the share of coarse fraction, while the greater energy deposition results in the higher share of fine fraction.     

Structure and properties of hot-pressed materials based on AlB<Subscript>12</Subscript>C<Subscript>2</Subscript>

The results are presented on the investigation of the structure and mechanical properties of hot-pressed materials based on AlB₁₂C₂ powders of sizes 50–150 nm. It is shown that the consolidated materials having mechanical properties comparable with boron carbide may be produced at essentially lower (by 270–300°C) sintering temperatures. It has been established that the heating rate at compressing affects the stoichiometry of the impurity phase containing Al, B, O, which define the difference in mechanical properties of the materials (a decrease of the heating rate results in the insignifical decrease of the material hardness and increase of the fracture toughness).     

Effect of Energy Deposition on High-Voltage Electropulse Drilling Efficiency in Granite

The study shows that in electropulse drilling, an increment in energy deposition into the discharge channel results in the linear increase in the drilling rate that grows with the spacing of electrodes. The energy consumption due to energy deposition undergoes a minimal change, while the size of cuttings is conditioned by the energy deposition and spacing of electrodes.     

Influence of Cutting Conditions on the Surface Roughness of Titanium-Alloy Parts Produced by Additive and Traditional Methods

Russian Engineering Research - The influence of the cutting conditions on the surface roughness Ra&nbsp;is compared for parts produced by additive and traditional methods. The internal...     

Relative Wear of Copper–Graphite Composite Electrodes in Electrical Discharge Machining

Russian Engineering Research - The influence of the pulse energy on the performance of copper electrodes with added graphite in the electrospark piercing of tool steel is studied. With increase in...     

Wire-Cut Electrical Discharge Machining of Polymer Composites

Russian Engineering Research - Wire-cut electrical discharge machining (EDM) of VKU-39 polymer composite by means of conducting layers is considered. By that means, complex polymer-composite...     

Electrolytic Plasma Polishing and Wire-Cut Electrical Discharge Machining

Russian Engineering Research - Electrolytic plasma polishing may be used to improve the surface quality of ЭП517ш steel after wire-cut electrical discharge machining (EDM). With...