Increasing the Adherence of Metallic Copper to the Surface of Titanium Hydride

Abstract

Studies have been carried out to increase the adhesive interaction between a titanium hydride substrate and a copper coating. An additional layer containing chemically active groups was created on the surface of the spherical titanium hydride by chemisorption modification. This paper discusses the results of scanning electron microscopy (SEM) using energy-dispersive X-ray spectroscopic mapping of coatings obtained on spherical granules of titanium hydride before and after adsorption modification. The mechanism of interaction of the surface of spherical granules of titanium hydride and titanium sulfate salt is proposed. It is shown that the creation of a chemisorbed layer of hydroxotitanyl and the subsequent electrodeposition of metallic copper contribute to the formation of a multilayer shell of a titanium–copper coating on the surface of spherical titanium hydride granules (≡Ti-O-Cu-) with a high adhesive interaction. Results have been given for an experimental study of the thermal stability of the initial spherical granules of titanium hydride and granules coated with a multilayer titanium-copper shell.

An Approach to Understanding the Hydration of Cement-Based Composites Reinforced with Untreated Natural Fibers

“…The endothermic peak that corresponded to a temperature of 600 • C produced an increase in weight as it was a metallic element, and could be attributed to the oxidation of Ti from the sand (Figure 2b). The existing literature fixes this peak at about 557 • C [62]. This peak only appeared in the sample with fibers at 7 days due to a concentration of Ti.…”

The effect of heat treatment on oxygen content and microstructure of near-surface areas of titanium hydride coated with tungsten carbide

“…to reduce the thermal diffusion of hydrogen and oxidation of titanium. To obtain products that stably exist at high temperatures, titanium hydride is obtained in various modifications [4][5] or additionally carried out its chemical or physical modification [3,[6][7][8][9][10][11]. One of the effective ways to reduce the thermal diffusion of hydrogen is to create thin films (shielding coatings) of substances on the surface of titanium hydride.…”