Effect of coagulation on the particle charge distribution and air conductivity

2001 ◽  
Vol 106 (D11) ◽  
pp. 12055-12065 ◽  
Author(s):  
Savita Dhanorkar ◽  
A. K. Kamra
Keyword(s):  
Charge Distribution ◽  
Particle Charge ◽  
Particle Charge Distribution

Dust particle charge distribution in a stratified glow discharge

2007 ◽  
Vol 40 (24) ◽  
pp. 7761-7765 ◽  
Author(s):  
Gennady I Sukhinin ◽  
Alexander V Fedoseev ◽  
Tlekkabul S Ramazanov ◽  
Karlygash N Dzhumagulova ◽  
Rauan Zh Amangaliyeva
Keyword(s):  
Glow Discharge ◽  
Charge Distribution ◽  
Dust Particle ◽  
Particle Charge ◽  
Particle Charge Distribution ◽  
Dust Particle Charge

The changes in particle charge distribution during rapid growth of particles in the plasma reactor

2003 ◽  
Vol 257 (2) ◽  
pp. 195-207 ◽  
Author(s):  
Kyo-Seon Kim ◽  
Dong-Joo Kim ◽  
Jong-Hwan Yoon ◽  
Jin Yong Park ◽  
Yukio Watanabe ◽  
...  
Keyword(s):  
Charge Distribution ◽  
Rapid Growth ◽  
Plasma Reactor ◽  
Particle Charge ◽  
Particle Charge Distribution

The effect of the electric charge distribution on the ageing of an aerosol

1953 ◽  
Vol 216 (1127) ◽  
pp. 569-582 ◽  
Keyword(s):  
Charge Distribution ◽  
Electric Charge ◽  
Porous Silica ◽  
Simple Expression ◽  
Average Particle ◽  
Particle Charge ◽  
Surface Loss ◽  
Smoke Chamber ◽  
Electric Charge Distribution ◽  
Movement Differences

Smoke-chamber experiments have been carried out to determine the electric charge distributions and the constants descriptive of coagulation and surface loss of aerosols of porous silica powder, magnesium oxide and ammonium chloride. The data obtained were used to test the hypothesis that the rate of coagulation is affected by the electric charge distribution. Calculations have been made of the effect of electric charges on the particles of an aerosol on its rate of coagulation due to Brownian movement, differences in gravitational settling and turbulence. A simple expression for the coagulation constant was obtained which was found to be a function of the fraction of positive particles, the fraction of negative particles, the average particle charge of each sign and the average radius. A more exact treatment of ageing data than has previously been presented indicated a possible variation in the coagulation and surface loss constants with time, and this variation has been shown to be related to changes in the electric charge distribution.

Study of charge transfer in FeTi

1983 ◽  
Vol 41 ◽  
pp. 296-297
Author(s):  
J. Taft∅
Keyword(s):  
Charge Transfer ◽  
Charge Distribution ◽  
Electron Scattering ◽  
Periodic System ◽  
Electron Distribution ◽  
Scattering Amplitude ◽  
Transition Elements ◽  
Hartree Fock ◽  
Cscl Structure ◽  
The Right

It is well known that for reflections corresponding to large interplanar spacings (i.e., sin θ/λ small), the electron scattering amplitude, f, is sensitive to the ionicity and to the charge distribution around the atoms. We have used this in order to obtain information about the charge distribution in FeTi, which is a candidate for storage of hydrogen. Our goal is to study the changes in electron distribution in the presence of hydrogen, and also the ionicity of hydrogen in metals, but so far our study has been limited to pure FeTi. FeTi has the CsCl structure and thus Fe and Ti scatter with a phase difference of π into the 100-ref lections. Because Fe (Z = 26) is higher in the periodic system than Ti (Z = 22), an immediate “guess” would be that Fe has a larger scattering amplitude than Ti. However, relativistic Hartree-Fock calculations show that the opposite is the case for the 100-reflection. An explanation for this may be sought in the stronger localization of the d-electrons of the first row transition elements when moving to the right in the periodic table. The tabulated difference between fTi (100) and ffe (100) is small, however, and based on the values of the scattering amplitude for isolated atoms, the kinematical intensity of the 100-reflection is only 5.10-4 of the intensity of the 200-reflection.

Sign in / Sign up

Export Citation Format

Share Document