Morphology of the surface of technically pure titanium VT1-0 after electroexplosive carbonization with a weighed zirconium oxide powder sample and electron beam treatment

Titanium is carbonized by the electroexplosive method. Formation of a surface alloyed layer and a coating on the treated surface is established by the methods of transmission electron microscopy. The morphology and elemental composition of the alloyed layer are analyzed. A dependence of the structure of the modified layer subjected to electron gun treatment on the absorbed power density is revealed

Development of Approaches to the Construction of Urban Environment Quality Indices Based on Indicators of the Spatial Availability of Infrastructure

 In the Russian Federation 75% of the population live in cities and the quality of life cannot be considered separately from the quality of life of citizens. Modern cities and urban agglomerations act as development centers, accumulating factors that are the driving force of the innovation economy: financial resources, innovative technologies, infrastructure and qualified personne

The effect of bioinert electroexplosive coatings on stress distribution near the dental implant-bone interface

In this study, the first time a 2d finite element models of the titanium dental implant with Ti–Zr or Ti–Nb coating sprayed by electro explosive method and bone tissue located near were constructed. The present models simulate small surface implant section and bone located near. Three models with or without bioinert coating were studied in two configurations with cortical or cancellous bone tissue. All materials used in this study were assumed to be linearly elastic, homogenous, and isotropic to simplify the calculation. The stress distribution in the implant and bone tissue located near is uniform. The largest von Mises stress was obtained near the bone-implant interface in the implant area. It has shown that the stress pattern changed in the models with bioinert coatings. The second stress maximum appeared on the boundary between titanium subtract and the coating layer. The most significant changes in stress distribution were reached in the model with Ti–Zr coating. The electro explosive bioinert coatings help to reduce the stress shielding effect and implant failure probability because of bone strength loss. It also was found shear stress changes in the bone tissue