List of publications on a keyword: «vapor»

Сoating deposition on dielectrics is used a source of metal atoms and fast gas molecules produced due to charge exchange collisions of accelerated ions in a processing chamber is described. The metal atoms are produced due to ion sputtering of a target placed at the bottom of the hollow cathode inside the source. When a mixture of argon and nitrogen is used, nitride coatings are produced with deposition rate up to 4 µm/h, the coatings being interruptedly bombarded by molecules with energy rеgulated from 10 to 300 eV.

The article presents the design of absorption-diffusion refrigeration unit distinguishes than that, with the aim of increasing efficiency, a reflux condenser and absorber is fitted with cooling jackets, and the evaporator has a collection of melt water, is connected in parallel to the shirts of the reflux condenser and the absorber. The article also presents the design of the test stand generator the above absorption-diffusion refrigeration unit, characterized in that, with the purpose of testing in a wide range of values of the cooling capacity of the test generators, the stand further comprises electrochlorinator with a regulating valve at the entrance, acting as a refrigerator evaporator, heat exchangers with the coils connected among themselves by means of piping and employees fracking, condenser, absorber with reservoir, liquid and gas heat exchangers of the refrigerator, and the water distribution manifold with regulating valves connected to mirzoalimov spaces of the respective h

Based on the physical model of «unpacking» a fluid, published in 1983 to explain the physical nature of surface tension, an explanation of capillary phenomena was proposed. The unified physical nature of the condensation process and the processes in the capillaries expressed in terms of the surface tension of the liquid is proved. To prove the applicability of the «unpacking» model for capillary phenomena, an empirical Borelli-Jurin formula for determining the height of fluid lifting in capillaries was theoretically derived depending on the magnitude of the surface tension. The assumptions under which the formula is obtained are indicated. In addition, the article proposes a new formula for determining the maximum height of liquid lift in the capillaries, depending on the critical temperature of the liquid and the molecular weight of the liquid.

We received theoretical formulas of the interconnection between melting, boiling and critical temperatures. Uniform physical representation of melting, boiling and evaporation processes was the basis for deriving the formula of interconnection between them. We use the concept of the material substance internal energy in terms of the molecules “unpacking” idea. The reference manual data on 85 substances from 13 to 855 degrees Kelvin confirms the theoretically derived formulas. We carried out the comparison of theoretical formulas and experimental data by their mean values. A simple ideal substance model with spherical molecules was considered as a model of substance molecule. The melting point is 1/3, and the boiling point ranges from 1/2 to 2/3 of the critical point for this model.