[permalink] [id link]
Inert anodes suffer from stability issues.
from
Wikipedia
Some Related Sentences
Inert and from
* Inert gas, like nitrogen, prevent necessary oxygen from reacting
Inert and .
Inert placebos can have significant antidepressant effects, and so to establish a substance as an " antidepressant " in a clinical trial it is necessary to show superior efficacy to placebo.
Tungsten has also been used in Dense Inert Metal Explosives, which use it as dense powder to reduce collateral damage while increasing the lethality of explosives within a small radius.
Inert atmospheres consisting of gases such as argon, nitrogen, or helium are commonly used in chemical reaction chambers and in storage containers for air-sensitive or water-sensitive substances, to prevent unwanted side-reactions of these substances with air and water.
Inert munitions are used in military and naval training, and they are also collected and displayed by public museums, or by private parties.
Inert gases are used generally to avoid unwanted chemical reactions degrading a sample.
Inert gas is produced on board crude oil carriers ( above 20000 tonnes ) by using either a flue gas system or by burning kerosene in a dedicated inert gas generator.
Inert gas can also be used to purge the tank of the volatile atmosphere in preparation for gas freeing-replacing the atmosphere with breathable air-or vice versa.
Inert gases are also used in gas metal arc welding ( GMAW ) for welding non-ferrous metals.
Inert.
Inert ( non-exploding ) training versions were also produced.
Inert in scientific terminology means ‘ not readily reactive with other elements ; forming no chemical compounds or something that is not chemically reactive .’ An inert fuel tank is non-combustible.
Inert gas is used because oxygen and oil can form an explosive mixture when combined under high pressure.
Inert blue ENERGA anti-tank rifle grenade and Mills Bomb.
Inert gases ( most often carbon dioxide and water ) produced by thermal degradation of some materials act as diluents of the combustible gases, lowering their partial pressures and the partial pressure of oxygen, and slowing the reaction rate.
* Inert ( nontoxic, nonflammable, nonoxidising ) gas cylinders have a bright green shoulder ( e. g., neon, krypton, and xenon )
Tesla called this invention the single terminal lamp, or, later, the " Inert Gas Discharge Tube.
Inert gas evaporation and inert gas deposition are free many of these defects due to the distillation ( c. f.
Inert materials can damage vehicles and create dust.
Inert gases are used as coolants in gas-cooled nuclear reactors.
** M30 Inert training missile.
* Inert waste: construction and demolition waste, dirt, rocks, debris.
The positive pressure caused by extinguishant release of the Inert agents in this group ( IG-541, IG-55, IG-100 ) may be sufficient to break windows and walls.
Inert atmosphere techniques and low temperatures minimize these side reactions.
anodes and from
For example, in copper refining, copper anodes, an intermediate product from the furnaces, are electrolysed in an appropriate solution ( such as sulfuric acid ) to yield high purity ( 99. 99 %) cathodes.
Davy installed sacrificial anodes made from a more electrically reactive ( less noble ) metal attached to the vessel hull and electrically connected to form a cathodic protection circuit.
Sacrificial anodes made from iron were attached to the copper sheath of the hull below the waterline and dramatically reduced the corrosion rate of the copper.
Some tubes were capable of being driven so hard that the anode would itself glow cherry red ; the anodes were machined from solid material ( rather than fabricated from thin sheet ) to withstand heat without distorting.
If the differential output is not desired, then only one output can be used ( taken from just one of the collectors ( or anodes or drains ), disregarding the other output without a collector inductor ; this configuration is referred to as single-ended output.
Additional toxic waste that is created from hexavalent chromium baths include lead chromates which form in the bath because lead anodes are used.
* A sulfate-based bath that uses lead anodes that are surrounded by boxes filled with sulfuric acid ( known as shielded anodes ), which keeps the trivalent chromium from oxidizing at the anodes.
The anodes in these devices are often fabricated from a refractory metal, usually molybdenum, to handle reverse current during ringing ( or oscillatory ) discharges without damage.
It processes concentrates and anodes from Andina and El Teniente, amongst other producers, and makes Codelco increasingly self-sufficient.
If direct current is to be produced from single-phase alternating current, then two anodes are used, each connected to the outer ends of a centre-tapped transformer secondary winding.
Design of the arms and envelope is intended to prevent an arc from forming between the anodes ; such a condition is called " backfire " and is a critical factor in the design of mercury-arc rectifiers.
Once an arc is formed, electrons are emitted from the surface of the pool, causing ionization of mercury vapor along the path towards the anodes.
As the anodes of each AC phase are fed from opposite ends of the transformer winding, one will be positive, and the other negative, and thus a current will always be maintained from one or more positive anodes to the cathode.
Cathodes are thin sheets of pure lead and anodes are cast from the impure lead to be purified.
In the production of copper, these pure sheets of copper are used as starter material for the cathodes, and are then lowered into a solution such as copper sulfate with the large anodes that are cast from impure ( 97 % pure ) copper.
The copper from the anodes are electroplated on to the cathodes, while any inpurities settle to the bottom of the tank.
anodes and .
An attempt to improve the life of the anodes or the efficiency of the plasma generators must, therefore, aim at a reduction of the anode loss.
Sacrificial anodes are particularly needed for systems where a static charge is generated by the action of flowing liquids, such as pipelines and watercraft.
Galvanized steel can last for many years if other means are maintained, such as paint coatings and additional sacrificial anodes.
Most of these early magnetrons were glass vacuum tubes with multiple anodes.
Later tetrodes had anodes treated to reduce secondary emission ; earlier ones such as the type 77 sharp-cutoff pentode connected as a tetrode made better dynatrons.
Some otherwise conventional tubes do not fall into standard categories ; the 6JH8 had several common grids, followed by a pair of beam deflection electrodes which deflected the current towards either of two anodes.
Aware the difficulties in laying transatlantic cable had not yet been solved, Lindsay took a great interest in the debate, with the revolutionary suggestion of using electric arc welding to join cables, and sacrificial anodes to prevent corrosion.
It was a thermionic vacuum tube ; inside were a central cathode, ten anodes, and ten " spade " electrodes.
The VFD used a hot filament to emit electrons and phosphor-coated anodes, like a cathode ray tube, shaped to represent segments of a digit, pixels of a graphical display, or complete letters, symbols, or words.
More modern tubes have anodes treated to minimise secondary emission.
Galvanic corrosion is often utilized in sacrificial anodes.
For unprotected piles, sacrificial anodes can be installed local to the affected areas to inhibit the corrosion or a complete retrofitted sacrificial anode system can be installed.
For larger structures, galvanic anodes cannot economically deliver enough current to provide complete protection.
In systems using alternating current but without separate anode structures, the electrodes alternate as anodes and cathodes, and the impinging electrons can cause substantial localized heating, often to red heat.
The cells are electrically heated to reach the operating temperature with this current, and the anode regulator system varies the current passing through the cell by raising or lowering the anodes and changing the cell's resistance.
There are three main alloys used as galvanic anodes, magnesium, aluminium and zinc.
Where this is a possibility, zinc anodes may be used.
Aluminium anodes have several advantages, such as a lighter weight, and much higher capacity than zinc.
Aluminium anodes will passivate where chloride concentration is below 1, 446 parts per million.
For example, iron anodes can be used to protect copper.
Differently shaped anodes will have a different resistance to earth, which governs how much current can be produced, so the resistance of the anode is calculated to ensure that sufficient current will be available.
If the resistance of the anode is too high, either a differently shaped or sized anode is chosen, or a greater quantity of anodes must be used.
0.247 seconds.