ELECTROPLATING Electroplating is the application of electrolytic cells in which a thin layer of metal is deposited onto an electrically conductive surface. Electroplating is a plating process that uses electrical current to reduce cat ions of a desired material from a solution and coat a conductive object with a thin layer of the material‚ such as a metal. Electroplating is primarily used for depositing a layer of material to bestow a desired property (e.g.‚ abrasion and wear resistance‚ corrosion
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Electrochromic devices: smart glass Aekachan Pichitpajongkit International school of engineering‚ Chulalongkorn university‚ Bangkok‚ Thailand Email:ake8843@hotmail.com A typical and most widely studied example is the tungsten trioxide (WO ) system. Tungsten trioxide (W ) is a transparent film but on electrochemical reduction‚ W give the electrochromic effect (blue coloration to the film). Although‚ there is still controversy about the detailed coloration mechanism‚ it is generally accepted that
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Chemistry EEI Introduction: Corrosion is the returning of metals back into their natural constituents when exposed to an atmosphere with which it can react. Both metals and non-metals are able to undergo redox reactions as well as other ceramics and polymers which are known to undergo a similar process which is referred to as degradation. This investigation aims to outline and assess the factors affecting corrosion and explore in depth how redox reactions work. Reduction and oxidization reactions
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Kierra Roberts 1-4-11 11B How Do Batteries Work? Electricity is the flow of electrons through a wire‚ that is called a circuit. Batteries have three parts to them‚ an anode‚ a cathode‚ and an electrolyte. The cathode and the anode are hooked up to an electrical circuit. The chemical reaction that is happening causes the electrons to build up at the anode. When the circuit is closed the electrons will be able to get to the cathode. When the electrochemical process change the
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One of the alternatives is to use the electric motor instead of gasoline one. An electric car is a car that powered by an electric motor rather than a regular gasoline engine. There are several major differences between gasoline and electric cars. First of all‚ “the electric motor will replace the gasoline engine” (“How Electric”‚ 2004). Secondly‚ “the electric motor is powered by a controller” (“How Electric”‚ 2004). Thirdly‚ “the controller gets power from the rechargeable batteries” (“How
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CORROSION Corrosion is defined as the involuntary destruction of substances such as metals and mineral building material by surrounding media‚ which are usually liquid (i.e. corrosive agents)." Most metals corrode. During corrosion‚ they change into metallic ions. In some cases‚ the product of corrosion itself forms a protective coating. "For example‚ aluminium forms a thin protective oxide layer which is impervious to air and water. In other cases (e.g. iron)‚ however‚ the coating either flakes
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Electrodeposition Coating Process for Automobile Bodies* By Yoshiaki 0YABU‚** Nobuo FURUNO‚*** Yoji HIRASAWA*** and Hiroshi OMORI **** Synopsis The earlier electrodeposition processwas mainlypursuitedfor the quality control in terms of mass production. However‚ the coating efficiency was picked up to be a serial problemfrom a standpoint of the harmony between natural circumstancesand human’s living-life conditions and the recovery usage of the paint was earnestlysearched. This trend
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Specification Clause & Method Statement Galvashield XP Embedded Galvanic Anodes for corrosion prevention in concrete rehabilitation SECTION 03700 – EMBEDDED GALVANIC ANODES PART 1 GENERAL 1.01 Related Documents A. Drawings and general provisions as received from the Consultant drawing: ‘Galcashield XP+’ 1.02 Summary A. This item includes furnishing all labor‚ tools‚ materials‚ equipment and services necessary to properly install embedded galvanic anodes. B. Embedded galvanic
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Stage 2 Chemistry Investigation Folio: Practical – Galvanic Cell Name: YY Names of Partner: ZZ Part A Investigation Design Proposal: Purpose of Experiment: To determine the effect of concentration of reactants on the current produced by a galvanic cell. Hypothesis: The greater the concentration of solution in the two half cells reacting with the two metals to produce current‚ the greater the flow of current will be produced from the galvanic cell. Independent Variable: Concentration
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Osmolality and electrolytes in cerebrospinal fluid and serum of febrile children with and without seizures. During acute febrile diseases mild disturbances of water and electrolyte balance occur frequently. It has been suggested that changes in electrolyte balance‚ in particular hyponatraemia‚ might predispose a child to convulsions during febrile illness; however‚ the changes of electrolytes in the CSF are not known. We have studied the effects of fever and convulsions on water and electrolyte
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