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pulse electroplating

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Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001262
EISBN: 978-1-62708-170-2
... Abstract Pulsed-current plating can be defined simply as metal deposition by pulsed electrolysis, which involves using interrupted direct current to electroplate parts. This article discusses the advantages and limitations of pulsed-current plating and provides information on the process...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001258
EISBN: 978-1-62708-170-2
... Abstract Nickel alloys electroplated for engineering applications include nickel-iron, nickel-cobalt, nickel-manganese, and zinc-nickel. This article provides the process description and discusses the processing variables, properties, advantages, and disadvantages of nickel-iron, nickel-cobalt...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003976
EISBN: 978-1-62708-185-6
... of dies: alloying surface treatments, micropeening, and electroplating. abrasive wear cold extrusion cold heading die coatings die wear electroplating forging hot extrusion micropeening plastic deformation surface treatments thermal fatigue WEAR OF DIES is a complex, time...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001304
EISBN: 978-1-62708-170-2
..., hot-dip coating processes, electrogalvanizing, electroplating, metal cladding, organic coatings, zinc-rich coatings, porcelain enameling, thermal spraying, hardfacing, vapor-deposited coatings, surface modification, and surface hardening via heat treatment. alloy steel cadmium plating carbon...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001260
EISBN: 978-1-62708-170-2
...-layer films, including Ni/Cu, Ag/Pd, Cu/Ni-Fe, Cu/Ag, Cu/Co, Cu/Pb, Cu/Zn, Ni-P/Ni-Co-P, and Ni/Ni-P, to name a few. In many cases these alloys can be electroplated from a single electrolyte bath using either current or potential pulsing schemes. A common feature to many single-bath electroplating...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006473
EISBN: 978-1-62708-190-0
... reviews the determination of area-amplitude and distance-amplitude curves of a straight-beam pulse-echo ultrasonic inspection system. The article discusses the three principal conventional manual ultrasonic sizing techniques: 6 dB drop technique, maximum-amplitude technique, and 20 dB drop technique. It...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0005586
EISBN: 978-1-62708-170-2
... factor; Weibull slope, for reliability above 90%; Weibull distribution; dispersion parameter; molecular weight mA milliampere MAS Microbeam Analysis Society MBE molecular-beam epitaxy mc microcracked (chromium electroplate) MCM multichip module MEP mean effective...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001242
EISBN: 978-1-62708-170-2
.... Electrodeposition of copper from acid baths is used extensively for electroforming, electrorefining, and decorative electroplating. Acid copper plating baths contain copper in the bivalent form and are more tolerant of ionic impurities than alkaline baths. They also have less macro throwing power and poorer metal...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001233
EISBN: 978-1-62708-170-2
... smooth surfaces (0.12 to 0.2 μm R a ). Pulsed dissolution is considered most suitable for electrochemical micromachining of thin films and foils when low dissolution rates are desirable for better control over the machining process ( Ref 7 ). In another recent development, “maskless” and “throughmask...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001292
EISBN: 978-1-62708-170-2
... (PIII) or plasma source ion implantation (PSII) ( Ref 13 , 14 ), involves immersing the object to be implanted in a plasma and pulsing it to a high negative voltage (50 to 100 kV), thereby extracting the ions from the plasma. Because the plasma completely surrounds the component(s), the line-of-sight...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001263
EISBN: 978-1-62708-170-2
... masters, usually with special passivating treatments so the secondary electroform can be easily removed. The same or similar electrodeposition additives as those used for electroplating are required for electroforming to control deposit stress, grain size, and other resultant mechanical properties in...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003055
EISBN: 978-1-62708-200-6
... requirements is called truing. Resin and metal bond wheels must be trued and dressed. Vitrified bond wheels generally require truing only and generally do not require dressing. Electroplated wheels do not require either truing or dressing, except in special situations. Every ceramic...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003215
EISBN: 978-1-62708-199-3
... since the 1800s. Today the principal applications for electrodeposited iron are in the production of solder gun tips, the electroplating of iron onto aluminum automobile engine parts, and the electroforming of iron foils for magnetic applications. ELECTRODEPOSITS OF CADMIUM are used...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001287
EISBN: 978-1-62708-170-2
... the pollution problems associated with electroplating (that is, “dry processing”) Vacuum plating of high-strength steels to avoid the hydrogen embrittlement associated with electroplating (for example, cadmium on steel, or “vacuum cad plating”) The primary function of the vacuum...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006679
EISBN: 978-1-62708-213-6
...) is the oldest quantitative electrochemical procedure ( Ref 11 ) described by Gibbs and may refer to: Electroplating : a process that uses electric current to reduce dissolved metal cations so that they form a coherent metal coating on an electrode Electrophoretic deposition: a term for a...
Book Chapter

By S.L. Rohde
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001288
EISBN: 978-1-62708-170-2
... the deposition process, and, thus, temperature-sensitive materials such as electroplated brass, die-cast zinc, and bronze can be used as substrate materials for decorative coatings. Sputtered decorative coatings are usually deposited in thicknesses ranging from 0.2 to 2 μm. Although electronic and...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001281
EISBN: 978-1-62708-170-2
... electroplating, in which the part is made the cathode. Whereas anodizing is typically associated with aluminum, similar processes are used for other base metals, including magnesium, titanium, and zinc; a brief discussion of anodizing of these materials is included at the end of this article. However, for the...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001311
EISBN: 978-1-62708-170-2
... satisfactory to only ∼815 °C (1500 °F). Some of the processes described in this article, such as electroplating and thermal spraying, are widely used; others, such as ion implantation, are starting to find industrial applications; still other processes are as yet used only for prototyping or producing...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001228
EISBN: 978-1-62708-170-2
... they provide surface preparation for enameling, rubber bonding, electroplating, or etching before galvanizing. Blasting-tumbling machines can be integrated into automatic systems for high production rates. An example is the presort and tote box loader work-handling system shown in Fig. 8 . Automatic...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001243
EISBN: 978-1-62708-170-2
...) Converted to Brinell scale from values obtained with a Bierbaum microcharacter using a 9 g (0.3 oz) load The electroplating of hard chromium is very cost-effective, giving a high throughput with reliable, reproducible quality deposits that are unattainable by any alternative technology. The...