THE OXIDE STRUCTURES FORMATION ON THE SURFACE OF TUNGSTEN

Journal Title: Физика аэродисперсных систем - Year 2018, Vol 0, Issue 55

Abstract

The temperature regimes and the kinetics of the formation of tungsten oxide crystals on the surface of a tungsten conductor heated by an electric current in air were studied, as well as the fractal dimension of branched oxide formations. It was shown that at the temperature higher than 1100 K, separate formations were observed on the surface of the conductor. These were nuclei of tungsten oxide crystals, which over time grew into branchy formations. The fractal dimension of the structures obtained at different stages of growth was calculated using the principle of object coverage. It was determined that at the initial stage, the growth of crystals proceeds according to the mechanism of the Brownian motion “cluster-cluster”, then along the Brownian motion “particle-cluster”.

Authors and Affiliations

S. G. Orlovskaya, M. V. Liseanskaia

Keywords

Related Articles

THE ACTIVATION ENERGY OF THE VISCOUS FLOW OF LAYERS OF SATURATED HYDROCARBONS WITH QUASI MACROSCOPIC CROSS-BORDERSTRUCTURE

Influence of temperature on the viscosity coefficient in shear flow micron layers of saturated hydrocarbons n-heptadecane, n-hexadecane and n-tridecane. Such heterophasic interlayers (which are including epitropnye liqui...

LASER PARTICLE COUNTERS FOR ENVIRONMENTAL AEROSOL MEASUREMENTS

Operation mechanism of developed laser particle counter, allowing to determine aerosol particles mass distribution, is described. Comparison is made with results, obtained via standard setup for deposition of particles o...

LASER-INDUCED CONTROLLABLE GENERATION OF MICRO-BUBBLES ON WATER SUSPENSION OF ABSORPTIVE COLLOID PARTICLES

Micrometer-sized bubbles are formed in the water suspension with absorptive pigment particles due to local heating. The heating is performed by moderately focused CW nearinfrared laser radiation with controllable power....

THERMOPHYSICAL PROPERTIES OF POLYMER COMPOSITE MATERIALS BASED ON PENTON AND CARBON NANOTUBES

The temperature dependences of the specific heat and tangent of the mechanical losses angle tgδ = f(T) of the penton - AgI and penton - CNT systems have been studied. The bimodal dependencies cp = f(T) have been separate...

SIMULATION OF EVAPORATION OF LOWER ALCOHOLS BINARY DROPLETS

This paper presents the simulation results of evaporation process of lower alcohols - ethanol (E), butanol (B) and their binary mixtures individual droplets with 2mm droplet initial size in hot air (T∞ = 440 ÷ 675K) and...

Download PDF file
  • EP ID EP596840
  • DOI 10.18524/0367-1631.2018.55.149896
  • Views 23
  • Downloads 0

How To Cite

S. G. Orlovskaya, M. V. Liseanskaia (2018). THE OXIDE STRUCTURES FORMATION ON THE SURFACE OF TUNGSTEN. Физика аэродисперсных систем, 0(55), 54-58. https://europub.co.uk/articles/-A-596840