Formation and dispersion of an electrolyte film on an ice electrode melting as a result of Joule heat evolution

2002 ◽  
Vol 47 (10) ◽  
pp. 1237-1245 ◽  
Author(s):  
A. I. Grigor’ev ◽  
V. V. Morozov ◽  
S. O. Shiryaeva
Keyword(s):  
Heat Evolution ◽  
Joule Heat ◽  
Electrolyte Film

Simulation of the Electric Current Flow in Amorphous-Crystalline Ti2NiCu Alloy with Shape Memory Effect

2016 ◽  
Vol 845 ◽  
pp. 146-149
Author(s):  
Dmitriy S. Kuchin ◽  
Victor V. Koledov ◽  
Pavel V. Bogun ◽  
Peter V. Lega ◽  
Vedamanickam Sampath ◽  
...  
Keyword(s):  
Electric Current ◽  
Current Flow ◽  
Amorphous Matrix ◽  
Volume Fraction ◽  
Current Density Distribution ◽  
Heat Evolution ◽  
Equatorial Region ◽  
Joule Heat ◽  
Electric Pulses ◽  
Electric Current Flow

A new technique for the production of nanograined alloys from rapidly quenched amorphous ribbons by serial electric pulses has been proposed recently [1]. The present work involves a theoretical study of electric current flow in a nonhomogeneous Ti2NiCu alloy consisting of an amorphous matrix with a crystalline phase of spherical morphology embedded in it. The electric current density distribution was calculated in the vicinity of a spherical nucleus, which has an electrical resistance that is only 0.4 times that of the amorphous matrix. The calculation of Joule heat density was done in the nucleus and in the amorphous volume surrounding it. It was shown that during the current pulse the Joule heat evolution in nucleus exceeds one in equatorial region in matrix, but less than near the poles. The dependence of relative resistivity of nonhomogeneous amorphous-crystalline alloy on volume fraction of spherical crystalline nuclei was calculated

ON THE MECHANISMS OF POROUS SILICON COMBUSTION IN OXYGEN AND AIR ATMOSPHERE WHEN SODIUM PERCHLORATE IS INCORPORATED IN PORES

2020 ◽  
Author(s):  
V. N. MIRONOV ◽  
◽  
O. G. PENYAZKOV ◽  
P. N. KRIVOSHEYEV ◽  
I. A. IVANOV ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Porous Layer ◽  
Sodium Perchlorate ◽  
Spark Ignition ◽  
Joule Heat ◽  
Air Atmosphere ◽  
Breakdown Region ◽  
Ignition And Combustion ◽  
Heating Up

The processes of pSi ignition and combustion in oxygen are described. When spark ignition in the porous layer releases the Joule heat, it leads to a significant heating-up of the breakdown region.

Evaluation of the temperature responses in colorimetric measurements of chemisorption enthalpies on metal films

1979 ◽  
Vol 44 (12) ◽  
pp. 3425-3433 ◽  
Author(s):  
Miloš Smutek ◽  
Slavoj Černý
Keyword(s):  
Heat Evolution ◽  
Adiabatic Temperature ◽  
Time Curve ◽  
Model Calculations ◽  
Colorimetric Measurements ◽  
Reliable Procedure ◽  
Temperature Responses ◽  
Temperature Time ◽  
Zero Time ◽  
Cooling Part

An analysis was performed of various estimates of the adiabatic temperature Ttot that corresponds to the total heat liberated by a gas dose adsorbed on a metal film in the calorimeter for measurement of chemisorption enthalpies. Besides the two common procedures consisting either in the construction of the adiabatic temperature-time curve or in the extrapolation of the single-exponential cooling part of the actual temperature-time curve to zero time, we have examined estimates of Ttot by extrapolating the cooling exponential to the mid-point between zero time and the temperature maximum (t = tmax/2). Model calculations have shown the merit of the latter extrapolation, particularly in the cases of slow heat evolution. This has been verified on the data measured in the chemisorption of methane and ethane on molybdenum films. Extrapolation to tmax/2 has turned out to be a simple and reasonably reliable procedure for handling the data obtained in film calorimeters.

Toward a durable solid electrolyte film on the electrodes for Li-ion batteries with high performance

Nano Energy ◽  
2019 ◽  
Vol 63 ◽  
pp. 103815 ◽  
Author(s):  
Weimin Zhao ◽  
Bizhu Zheng ◽  
Haodong Liu ◽  
Fucheng Ren ◽  
Jianping Zhu ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
High Performance ◽  
Li Ion Batteries ◽  
Electrolyte Film ◽  
Li Ion
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