• Carbon felts modified with nanocarbons as electrodes for the VO 2+ /VO 2 + redox couple. Electrophoretic deposition technology (EPD) synthesis procedure. Find out main factor influencing improved electrochemical performance. Key role of oxidation undergone by fibers during EPD. The energy efficiency vanadium flow batteries (VRFB) greatly depends on performance that constitute these devices, s...

In this work, the features of phase composition, structures, and properties coatings obtained on a high-speed steel substrate (steel R6M5) were studied. The prepared using ESA method (electro-spark alloying). Electrode materials through self-propagating high-temperature synthesis (SHS) based (Ti-B-Fe)xAlN with addition nanosized AlN particles in amount x = 0.5, 10, 15 wt % used as electrodes. s...

In this article, the electrode erosion and the gap growth of spark plugs were measured on of a CNG fueled engine after durability tests. Then, the required ignition voltage and the spark quality were investigated by a spark plug test rig. Considering results of measurements, the gap growth increased as the running time increased. Thus, the gap growth of spark plugs with 200 and 280 hours runnin...

The role of components in an Electrostatic Precipitator (EP) for a spark and both the phenomenon and mechanism of a spark are elaborated and then the type of spark is classified by the condition of shortage between the discharge and collecting electrodes. The secondary voltage and current waveforms of a spark are discussed in order to address the severe effect of the secondary and primary curre...