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small-signal polarization test

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Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003644
EISBN: 978-1-62708-182-5
... available for laboratory studies of corrosion phenomena. The techniques and tests include no-applied-signal tests, small-signal polarization tests, large-signal polarization tests, scanning electrode techniques, and miscellaneous techniques. electrochemical corrosion electrochemical test...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003436
EISBN: 978-1-62708-195-5
... small tabletop immersion tanks to large overhead gantry systems. Figure 3 shows a small, flat panel scanner where the parts under test are suspended on a cable bed. The cables are smaller in diameter than the defect class size required. This is a TT-only water-squirter system and uses two channels of...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003586
EISBN: 978-1-62708-182-5
... that signal conditions for high rates of corrosion. Techniques discussed include Tafel extrapolation, polarization resistance, electrochemical impedance spectroscopy, electrochemical noise resistance, use of rotating disks and cylinders to study aspects of corrosion affected by solution flow...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005683
EISBN: 978-1-62708-198-6
... reference electrode electrolyte and the test solution. There is a small inherent potential error due to the presence of a junction potential, which usually is ignored. Because the potential of a reference electrode is the potential of a reaction at equilibrium, it must not be disturbed by polarization of...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
... Abstract This article describes testing and characterization methods of ceramics for chemical analysis, phase analysis, microstructural analysis, macroscopic property characterization, strength and proof testing, thermophysical property testing, and nondestructive evaluation techniques...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003659
EISBN: 978-1-62708-182-5
... option is the use of devices to transform the data to coded citizens' band (CB) radio signals. These small, battery- operated units can be installed at probe locations, and they provide the desired information to the base station on command. The base station would be located in the control room...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006402
EISBN: 978-1-62708-192-4
... microanalysis) EELS Electron energy loss spectroscopy Electron Electron (scattered) Electronic status of very small portion ≈10 nm; depth direction 50 µm Elemental analysis, electron state analysis (+ transmission electron microscopy ELL Ellipsometry Light (laser) Light (polarized) Optical...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006469
EISBN: 978-1-62708-190-0
... echo from the back surface. Flaw sizes are most commonly estimated by comparing the signal amplitudes of reflected ultrasound from an interface (either within the test piece or at the back surface) with the amplitude of ultrasound reflected from a reference reflector of known size, or by scanning to...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004117
EISBN: 978-1-62708-184-9
... uses the electrical resistance of a thin piece of a metal test specimen as the sensor to monitor the loss of metal due to corrosion. For some applications, the sensor must be relatively thin in order to have sensitivity that is adequate to measure small changes in corrosion rate. This can lead to short...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003754
EISBN: 978-1-62708-177-1
... °F, water quenched, and tempered at 675 °C, or 1250 °F). Polarized light illumination. 100×. (G.F. Vander Voort) Fig. 26 Recrystallized Ti-6Al-4V alloy with a crack resulting from creep-rupture testing. Attack polished and color etched in 100 mL distilled H 2 O, 4 mL HCl, and 3 g NH 4 HF 2...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003241
EISBN: 978-1-62708-199-3
... Scleroscope and develops the same striking energy while dropping a shorter distance. Both models of the Scleroscope hardness tester may be mounted on various types of bases. The C-frame base, which rests on three points and is for bench use in hardness testing small workpieces, has a capacity about 3 in...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003600
EISBN: 978-1-62708-182-5
... etchback process that left a large recess in the via. Tungsten polishing was found to remove tungsten uniformly and quickly while giving very small via recesses. A comparison of wafer surfaces after tungsten CMP and tungsten etchback is shown in Fig. 2(a) and (b) . The figure shows atomic force...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003243
EISBN: 978-1-62708-199-3
... step-load test provides a stress intensity that is different at each load but remains constant with crack extension as each load level is sustained. Crack initiation is signaled by a drop in load ( Fig. 18 ). The rising step-load test was developed as an accelerated low-cost test to measure resistance...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003330
EISBN: 978-1-62708-176-4
... repeatability sufficient for comparisons. Often this is achieved by using small sample sizes, less rigor in specimen preparation, and minimal levels of test instrumentation. Testing is defined by internal procedures for specimen fabrication, test execution, and data reduction. Flexibility exists to modify...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005730
EISBN: 978-1-62708-171-9
... assembly used for tensile adhesion testing of thermal spray coatings. Dimensions are in inches (1 in. = 25.4 mm). Source: ASTM C633 The common statistical tests of mean, standard deviation, and signal-to-noise ratio should be used in analyzing tensile bond strength data, but the analysis should not...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003666
EISBN: 978-1-62708-182-5
... the onset of SCC in small test specimens the gross section exposure stress decreases. This results from the opening of the crack (or cracks) under the high stress concentration at the crack tip (or tips) and causes some of the applied elastic strain to change to plastic strain, with an attendant...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003667
EISBN: 978-1-62708-182-5
... focuses on accelerated small-specimen testing methods for failure analysis and production control of hydrogen embrittlement. Additional information on hydrogen damage in metals and on test methods for hydrogen embrittlement can be found in Ref 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001296
EISBN: 978-1-62708-170-2
... condition can be reached with very low scan rates without a large increase in total measuring time. Impedance measurements involve applying a small-amplitude sinusoidal potential to the measurement system and registering the current response to the signal's amplitude and the phase. A corrosion process can...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003647
EISBN: 978-1-62708-182-5
... microorganisms Electrochemical techniques used to study MIC include those in which no external signal is applied (redox potential, E corr , electrochemical noise, or ECN), those in which only a small potential or current perturbation is applied (polarization resistance, electrochemical impedance...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003026
EISBN: 978-1-62708-200-6
... to be a distributed parameter system, and alternate techniques, such as transmission line and resonant-cavity measurements, are used. These techniques can be used to measure dielectric properties at frequencies up to about 10 11 Hz, beyond which small cell size and large signal attenuation make them...