Now showing items 1-5 of 5
Studying laminar flows of power-law fluids in the annular channel with eccentricity
The paper deals with numerical and experimental investigation of non-Newtonian flow of modeling drilling fluids in the annular channel. The Reynolds number was ranged from 100 to 1500. The parameters of the power-law model ...
Investigation of the additive effect of nanoparticles on the hydrodynamic characteristics of drilling fluids
Investigations of the rheological properties of drilling fluids based on nanoparticles are carried out. The dependences of the effective viscosity and rheological parameters of fluids on the concentration, size and material ...
Structuring in Fast-Quenched Ferrite Compositions under Plasma Spraying
Abstract—The influence of the quench rate on structuring in spinel ferrites has been studied. It has been found that, when the quench rate is increased, the equilibrium spinel structure gradually becomes disordered. At the ...
Influence of additives of nanoparticles on structure formation of fine-grained hardmetals
This paper introduces a new concept of coated fine carbides modified by nanoparticles Al2O3, ZrO2 (inhibitors) as the starting method for improved hardmetals. The study involved computational and experimental methods to ...
Phase Composition and the Micro- and Macrostructures of Quasi-Crystalline Powders Obtained by Plasma-Chemical Synthesis
Abstract—Quasi-crystalline Al65Cu23Fe12 powders have been obtained by the method of plasma-chemical synthesis. Coarse particles have a spherical form and an inhomogeneous structure because of the laminar growth of crystallites ...