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electrolytic cell

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Published: 01 June 2008
Fig. 26.6 Electrolytic cell used to produce aluminum. Courtesy of Alcoa, Inc. More
Image
Published: 01 November 2013
Fig. 30 Electrolytic cell used to produce aluminum. Courtesy of Alcoa, Inc. Source: Ref 18 More
Image
Published: 01 October 2012
Fig. 2.5 Electrolytic cell used to produce aluminum. Courtesy of Aluminum Company of America More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910497
EISBN: 978-1-62708-250-1
... in both acid and alkaline environments. anaerobic. Free of air or uncombined oxygen. anion. A negatively charged ion that migrates through the electrolyte toward the anode under the influence of a potential gradient. See also cation and ion. anode. The electrode of an electrolyte cell at which oxidation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.9781627082501
EISBN: 978-1-62708-250-1
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730129
EISBN: 978-1-62708-283-9
...) and direct corrosion (attack in air). Corrosion in Water Solutions Aqueous corrosion always involves an electrolytic cell with a cathode and an anode ( Fig. 12.1 ). It is the opposite of electroplating. The anode is where ions go into solution M → M +n + ne − . The cathode is where electrons...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310011
EISBN: 978-1-62708-286-0
... and reduction , Reaction 3, occurs at the cathode. The electrolyte is the medium through which the ions migrate; in the case of corrosion reactions, this is most commonly a water-based solution, but at high temperatures it could be a solid oxide. The final constituent of the electrochemical cell is a pathway...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.9781627082822
EISBN: 978-1-62708-282-2
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030380
EISBN: 978-1-62708-282-2
.... The electrode of an electrolyte cell at which oxidation occurs. Electrons ow away from the anode in the external circuit. It is usually at this electrode that corrosion occurs and metal ions enter solution. Contrast with cathode. anode corrosion. The dissolution of a metal acting as an anode. anode corrosion...
Image
Published: 01 March 2001
Fig. 2 A metal pipe buried in moist soil forming a corrosion cell. A difference in oxygen content at different levels in the electrolyte will produce a difference of potential. Anodic and cathodic areas will develop, and a corrosion cell, called a concentration cell, will form. More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310019
EISBN: 978-1-62708-286-0
... to to understand rates of corrosion. The discussion covers two kinetic processes, namely electrode reactions at the cathode and anode and conduction of ions in the electrolyte. The chapter also provides information on passivation and its effect on polarization diagrams. corrosion kinetics passivation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940233
EISBN: 978-1-62708-302-7
... environments. The metal/aqueous-environment systems of concern may extend from pure metals in contact with electrolytes containing only the ions of that metal, to complex alloys in contact with complex electrolytes. In the latter case, the reference half cell measures the corrosion potential. The source...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350011
EISBN: 978-1-62708-315-7
... another, perhaps copper, and the electrolyte might or might not have the same composition at both anode and cathode. The anode and cathode could be of the same metal under conditions described later in this article. The cell shown in Fig. 1 illustrates the corrosion process in its simplest form...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230071
EISBN: 978-1-62708-298-3
... iron, nickel, and aluminum [ Mitchell et al. 1989 ]. This article suggests electrolytic methods for the extraction of beryllium based on beryllium halide-alkali halide salt systems, which could allow a higher efficiency of recovery. Schematic cell arrangement has been suggested to electrowin...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230493
EISBN: 978-1-62708-298-3
... production stream. A seven-cell copper-electrowinning system, four electrorefining cells, and a six-stage beryllium solvent extraction circuit provide a capacity of 907 metric tons (2 million lb) of copper and 23 metric tons (50,000 lb) of beryllium per year. The process flowsheet for this facility is shown...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240323
EISBN: 978-1-62708-251-8
..., a complete electrical circuit is required. In a corroding system ( Fig. 18.1 ), this circuit is made up of four components: The anode is the electrode of an electrolytic cell at which oxidation is the principal reaction. Electrons flow away from the anode in the external circuit. It is the electrode...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400215
EISBN: 978-1-62708-258-7
... in an electrolytic cell. For example, a pearlitic microstructure consists of layers (lamella) of ferrite and cementite. When exposed to an acid solution, the ferrite becomes the anode and the cementite becomes the cathode. In this electrolytic cell, the ferrite is attacked faster than the cementite, and thus, when...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610501
EISBN: 978-1-62708-303-4
... surface to another part of the same surface. For a current to flow, a complete electrical circuit is required. In a corroding system ( Fig. 1 ), this circuit is made up of four components: The anode is the electrode of an electrolytic cell at which oxidation is the principal reaction. Electrons flow...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060369
EISBN: 978-1-62708-261-7
.... Electrochemical processes require both oxidation and reduction reactions in order to maintain the conservation of electric charge. This process occurs in an electrochemical cell , which consists of an anode and a cathode immersed in an electrolyte (or general chemical surroundings). An anode is, by definition...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630281
EISBN: 978-1-62708-270-9
... and the properties of the material. Glossary / 283 284 / Understanding How Components Fail, Third Edition concentration cell. A cell involving an electrolyte and two identical electrodes, with the electrical potential resulting from differences in the chemistry of the environments adjacent to the two electrodes...