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We propose a procedure of regularization of the computational scheme used to find stresses and the strength index by the method of boundary elements, which enables one to perform the numerical analysis of bodies with thin coatings, including the cases of multilayer and composite coatings, and present the numerical results obtained for a cutting tool of VK6 hard alloy with TiN monocoating 6 μm in thickness.
The nature of the catalytically active components is studied in the steady-state decomposition of hydrogen peroxide in alkali media in the presence of an Fe2O3 suspension at 25°C in an intensively shaken reactor. It was found that a hydroxide colloid formed by the mechanical abrasion of the solid catalyst in an aqueous solution shows noticeable catalytic activity together with the initial solid-phase...
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