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electrolytic reduction

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230055
EISBN: 978-1-62708-298-3
... the challenges encountered with each. beryllium electrolytic reduction hydrogen reduction thermal decomposition thermodynamics THE FUNDAMENTAL understanding of beryllium reduction thermodynamics is essential to effectively read and interpret the following chapters on beryllium extraction, chemical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.9781627082501
EISBN: 978-1-62708-250-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230071
EISBN: 978-1-62708-298-3
...]. Both reports describe the beryl decomposition and conversion to beryllium hydroxide, from which followed the preparation of beryllium chloride for the electrolytic reduction to metallic beryllium. Maximum production reached 160 to 180 kg/month pure beryllium. The Degussa process employed beryl...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480001
EISBN: 978-1-62708-318-8
... Oxide, electrolytic SRI Fluidized bed H 2 reduction of TiCl 4 BHP (Billiton, Australia) Oxide electrolytic, prepilot plant Idaho Ti Plasma quench, chloride Ginatta, Italy Electrolytic, chloride OS (Ono, Japan) Electrolytic/calciothermic oxide MIR, Germany Iodide reduction...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140001
EISBN: 978-1-62708-335-5
... in Chapters 2 through 7 , and a comprehensive summary of the mechanical and physical properties of aluminum alloy castings is provided in Chapter 8 . Castings were the first important market for aluminum, following the commercialization of the Hall-Heroult electrolytic reduction process. At first...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940233
EISBN: 978-1-62708-302-7
... . The working electrode (WE) is the corrosion sample (i.e., the material under evaluation). The auxiliary electrode (AE), or counter electrode, is ideally made of a material that will support electrochemical oxidation or reduction reactions with reactants in the electrolyte but will not itself undergo corrosion...
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
... with an electrolyte. Together, an anode and cathode are the basic elements in an any electrochemical reaction. The anode and cathode may be separate materials, or they can be dissimilar regions on the surface of the same material. Metal corrosion is basically the electrochemical process of oxidation and reduction...
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 2008
DOI: 10.31399/asm.tb.ssde.t52310011
EISBN: 978-1-62708-286-0
... that require several phases to be in contact. Oxidation , Reaction 2, occurs at the anode 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...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740373
EISBN: 978-1-62708-308-9
..., electrolysis, and oxide reduction are compared in Table 1 . Chemical and physical properties of compacting-grade iron powder Table 1 Chemical and physical properties of compacting-grade iron powder Constituent or property Electrolytic Reduced Atomized Chemical analysis, % Total iron...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030184
EISBN: 978-1-62708-282-2
..., an electric circuit between them, and an electrolyte. Cathodic protection will not work on structures exposed to air environments. Air is a poor electrolyte, and it prevents current from flowing from the anode to the cathode. The reduction reactions that accompany cathodic protection are normally...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850538
EISBN: 978-1-62708-260-0
...) <xref ref-type="bibr" rid="t67850410-ref20">[20]</xref> Electrolytic Copper Plating <xref ref-type="bibr" rid="t67850410-ref21">[21]</xref> Electrolytic Iron Plating Electrolytic Nickel Plating Electroless nickel is the most commonly used plating material in metallographic edge preparation schemes. A very wide range of materials...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610501
EISBN: 978-1-62708-303-4
... be in contact with moist soil or may just have moist areas on the metal surface. The cathode is the electrode of an electrolytic cell at which reduction is the principal reaction. Electrons flow toward the cathode in the external circuit. The cathode does not corrode. A metallic path is an external...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030039
EISBN: 978-1-62708-282-2
.... If electrolyte can be rigorously excluded from these regions, crevice corrosion is not possible, as one of the requirements for corrosion has been removed. Unfortunately, achieving and maintaining such complete exclusion of electrolyte is often impossible, so an appreciation of crevice corrosion becomes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030082
EISBN: 978-1-62708-282-2
... of the remaining element(s). For example, in the silver-gold system, silver can be almost 100% removed in various acid electrolytes, leaving behind porous gold, as shown in Fig. 1 . This bicontinuous metal-void structure is highly brittle in nature and has been linked to stress-corrosion cracking in many alloy...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550141
EISBN: 978-1-62708-307-2
... sidewall and thick bottom or thick sidewall and thin bottom). Ribs, flanges, bosses, and indentations can be incorporated. Length-to-diameter ratios may range from 1.5:1 to 15:1. Ratios from 6:1 to 8:1 are considered good working ratios. Reduction in area varies with the alloy being extruded...
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
... charged hydroxyl ions (OH − ) in equal amounts. The metal undergoing electrochemical corrosion need not be immersed in a liquid but may be in contact with moist soil or may just have moist areas on the metal surface. The cathode is the electrode of an electrolytic cell at which reduction...
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 January 2000
DOI: 10.31399/asm.tb.cub.t66910049
EISBN: 978-1-62708-250-1
... is an electrochemical process. Electrochemical processes require anodes and cathodes in electrical contact and an ionic conduction path through an electrolyte (see, for example, Fig. 2 in Chapter 2 ). The electrochemical process includes electron flow between the anodic and cathodic areas; the rate of this flow...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870001
EISBN: 978-1-62708-299-0
... its ore. When the electrolytic reduction of aluminum oxide (Al 2 O 3 ) dissolved in molten cryolite was independently developed by Charles Martin Hall in the United States and Paul T. Héroult in France, the aluminum industry was born. The emergence of three important industrial developments...