Study of the Tribological Characteristics of A Porous Iron-based Antifriction Alloy

The paper presents the results of a study of the tribological properties of an antifriction iron-based alloy with pyrite added to the charge under conditions of self-lubrication in comparison with an iron-graphite antifriction alloy

STUDY OF THE TRIBOLOGICAL CHARACTERISTICS OF A POROUS IRONBASED ANTIFRICTION ALLOY

The paper presents the results of a study of the tribological properties of an antifriction iron-based alloy with pyrite added to the charge under conditions of self-lubrication in comparison with an iron-graphite antifriction alloy

STUDY OF THE TRIBOLOGICAL CHARACTERISTICS OF A POROUS IRON-BASED ANTIFRICTION ALLOY

The paper presents the results of a study of the tribological properties of an antifriction iron-based alloy with pyrite added to the charge under conditions of self-lubrication in comparison with an iron-graphite antifriction alloy

A Combined Method of Increase of Fluidity of High-viscous Local Oil

In this research work results of influence of electromagnet square to reologic peculiarity of petroleum are given. Decreasing more than 20 gradusselcium of energy of active of petroleum influence on electromagnet square was observed

Educational And Developing Tasks Of Labor Education

Comprehensive upbringing of the person is the right way to grow as a human resource for the society. It is a commitment to love and devotion to the country, and to work hard for the good of the people. It is based on the acquisition of scientific knowledge and the discovery of mental development. It is aimed at improving the skills and abilities of students, and on high spirituality

Theoretical and practical meaning of ecological morphophysiological research og fish reproduction in the reservoir with ecology changed conditions

Fish reproduction research showed that the change of existence conditions changes the character of sexual cell growth changes. Evident changes in the duration of protoplasmatic growth are observed as well as the asynchronism degree of sexual cells and their development rate during annual period

The Rectifying Contact of Hydrated Different Size YSZ Nanoparticles for Advanced Electronics

The paper considers the new effects of the nanoscale state of matter, which open up prospects for the development of electronic devices using new physical principles. The contacts of chemically homogeneous nanoparticles of yttrium-stabilized zirconium oxide (ZrO2—x mol% Y2O3, x = 0, 3, 4, 8; YSZ) with different sizes of 7.5 nm and 9 nm; 7.5 nm and 11 nm; and 7.5 nm and 14 nm, respectively, was studied on direct current using nanostructured objects in the form of compacts obtained by high-hydrostatic pressure (HP-compacts of 300MPa). A unique size effect of the nonlinear (rectifying-type contact) dependence of the electrical properties (in the region U < 2.5 V, I ≤ 2.7 mA) of the contact of different-sized YSZ nanoparticles of the same chemical composition is revealed, which indicates the possibility of creating semiconductor structures of a new type (homogeneous electronics). The electronic structure of the near-surface regions of nanoparticles of studied oxide materials and the possibility of obtaining specifically rectifying properties of the contacts were studied theoretically. Models of surface states of the Tamm-type are constructed considering the Coulomb long-range action. The discovered energy variance and its dependence on the curvature of the surface of nanoparticles made it possible to study the conditions for the formation of a contact potential difference in cases of nanoparticles of the same radius (synergistic effect), different radii (doped and undoped variants), as well as to discover the possibility of describing a group of powder particles within the Anderson model. The determined effect makes it possible to solve the problem of diffusion instability of semiconductor heterojunctions and opens up prospects for creating electronic devices with a fundamentally new level of properties for use in various fields of the economy and breakthrough critical technologies