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Faraday's law

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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
... theory as it pertains to corrosion resistance of stainless steels. The discussion provides an overview of electrochemical reactions, Faraday's law, the Nernst equation, galvanic versus electrochemical cells, corrosion tendency, and Pourbaix diagrams. corrosion stainless steel corrosion prevention...
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
... according to Faraday’s law, which was introduced in Chapter 2 : n NF = it . Because n = 2 and F = 95,485 C per mole electrons, the moles of dissolved iron are given as a function of time as N = i * t /(2* 95,485). Practically, this can be readily converted to lost mass m , which in the case of...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940127
EISBN: 978-1-62708-302-7
... reaction potential from E′ M up to E corr and the cathodic reaction potential from E′ X down to E corr . Faraday’s law is the connecting relationship between the corrosion current density, i corr = I corr /A a , and other expressions of “corrosion rate,” such as corrosion intensity (CI), in units...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940233
EISBN: 978-1-62708-302-7
..., to determine i corr , then Faraday’s law is used to calculate the corrosion intensity, CI, or corrosion penetration rate, CPR, why are the resultant values to be regarded as minimum values (i.e., the actual local values will be considerably higher)? Why should the specimen surface be carefully...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940001
EISBN: 978-1-62708-302-7
... reasons. First, through Faraday’s law, the anodic current density, i a , relates directly to corrosion intensity as mass loss per unit time per unit area, or to corrosion penetration rate as a linear dimension loss per unit time. Second, it is observed that interface potentials, E, are functions of...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090221
EISBN: 978-1-62708-266-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910427
EISBN: 978-1-62708-250-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230055
EISBN: 978-1-62708-298-3
... equilibrium constant expression, the result is: (Eq 5.11) K = 1.04 × 10 − 3 = a 3 Be a Be = 0.1 The activity-composition relationship for dilute solutions of beryllium in liquid copper is not known. If the relation follows Raoultís law, then the...
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 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090095
EISBN: 978-1-62708-266-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060197
EISBN: 978-1-62708-261-7
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.tb.ssde.t52310057
EISBN: 978-1-62708-286-0
... oxidation rate is influenced by the rate of supply of chromium from the alloys beneath the oxide. Above 16%, the supply of chromium is fast enough that chromium gradients are low enough that instead transport in the oxide layer controls the rate. The rate of oxidation then follows a so-called parabolic law...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910049
EISBN: 978-1-62708-250-1
... (rust). The change in the energy of the system is the driving force for the corrosion process, which behaves according to the laws of thermodynamics. The thermodynamics of aqueous corrosion is the subject of the first half of this Chapter. Important concepts described include the following...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110144
EISBN: 978-1-62708-247-1
... sample preparation has moved into the mainstream of FA in the last 5-10 years. While Moore’s law is concluding at the die level, the package engineering world continues to forge ahead and so do the increasingly stringent requirements for sample prep. Numerous package options with single or multi...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350195
EISBN: 978-1-62708-315-7
... entrapped air causes incomplete coverage at the bottom of the recesses. One way to avoid this problem, if a change of design is not possible, is to use an “airless” spraying technique ( Ref 4 ). During electrostatic powder coating there is the problem associated with “Faraday cage” effect, in which the...
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 July 2000
DOI: 10.31399/asm.tb.fec.t65940271
EISBN: 978-1-62708-302-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2000
DOI: 10.31399/asm.tb.fec.t65940087
EISBN: 978-1-62708-302-7
... the net flux of positive ions through the interface by diffusion. Fick’s first law applied at the interface is: (Eq 3.68) J D = − D ( dC dx ) x = 0 where x is the distance from the interface into the solution, and C is the concentration of ions (mol/cm 3...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030247
EISBN: 978-1-62708-282-2
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290009
EISBN: 978-1-62708-319-5
... particle size. It is also possible to measure particle size distribution by the settling rates in air or water. Stokes’ law gives the terminal velocity, V , for a particle of size D as determined by the fluid viscosity, η, particle density, ρ M , and fluid density, ρ F : (Eq 2.2) V = g D 2...