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solidification
Directional solidification of metal-gas eutectic and fabrication of regular porous metals
      
Directional solidification of metal-gas eutectic (Gasar) is a novel process for making regular porous metals.
      
The calculation results indicated that the IHTC immediately increased after liquid metal was brought into the cavity by the plunger and decreased as the solidification process of the liquid metal proceeded.
      
Higher heating rate inhibits the further melting of adjacent matrix and the solidification of liquid by liquid-to-γ mode in the subsequent thermal cycle.
      
Creep-resistant magnesium alloy design, plastic processing of magnesium alloys and rapid solidification processing of magnesium alloys have become the hot topics in magnesium technology.
      
The independence of the solidification temperature on the magnetic phase concentration and strong temperature dependence on the type of stabilizer make it possible to suggest that the transition is associated with molecular interactions.
      
Equilibrium flow of a two-phase mixture with solidification of liquid particles is considered.
      
A nonlinear model of an elastoviscous polymer is used to describe a number of experimental factors associated, in particular, with the "solidification" of the moving medium.
      
A model of eruption, which is a variant of that described in [4] and takes into account the disequilibrium of the pressure in the bubble and in the liquid in the absence of total solidification is proposed.
      
The results of space and comparative ground experiments on the solidification of a Te80Si20 melt, including the formation of gas pores in the ingots obtained, are discussed.
      
Asymptotic models of solidification in cooling thin-layer flows of a highly viscous fluid
      
Asymptotic models are constructed for the solidification process in a highly viscous film flow on the surface of a cone with a given mass supply at the cone apex.
      
In the thin-layer approximation, the problem is reduced to two parabolic equations for the temperatures of the liquid and the solid coupled with an ordinary differential equation for the solidification front.
      
For large Péclet numbers, an analytical steady-state solution for the solidification front is found.
      
A nondimensional parameter which makes it possible to distinguish flows (i) without a solid crust, (ii) with a steady-state solid crust, and (iii) with complete solidification is determined.
      
For finite Péclet numbers and large Stefan numbers, an analytical transient solution is found and the time of complete flow solidification is determined.
      
It is demonstrated that Mg-Zn-Y-Ce alloys with a fine-grained structure can be prepared by both conventional casting and rapid solidification.
      
The mean sizes of magnesium solid-solution grains and supersaturated magnesium solid-solution grains are equal to 45 and 5 μm for alloys produced by casting and rapid solidification, respectively.
      
This latter layer remains optically infinite even immediately after solidification; however, by the end of the solidification process, its reflectivity somewhat increases due to cracks and pores.
      
Rapid Solidification of ZrO2-8 mol % Y2O3 Melt under Conditions of Stepwise Reduction of Heating.
      
 

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