Plated copper

Electrodes. AH of the finished silver electrodes have certain common characteristics the grids or substrates used in the electrodes are exclusively made of silver, although in some particular cases silver-plated copper is used. Material can be in the form of expanded silver sheet, silver wire mesh, or perforated silver sheet. In any case, the intent is to provide electronic contact of the external circuit of the battery or cell and the active material of the positive plate. Silver is necessary to avoid any possible oxidation at this junction and the increased resistance that would result. [Pg.554]

Copper Nitrates. The ttihydrate [10031 3-3] crystallizes as blue rhombic plates. Copper(II) nitrate hexahydrate [13478-38-17,... [Pg.254]

Tin—Nickel. AHoy deposits having 65% fin have been commercially plated siace about 1951 (135). The 65% fin alloy exhibits good resistance to chemical attack, staining, and atmospheric corrosion, especially when plated copper or bron2e undercoats are used. This alloy has a low coefficient of friction. Deposits are solderable, hard (650—710 HV ), act as etch resists, and find use ia pfinted circuit boards, watch parts, and as a substitute for chromium ia some apphcafions. The rose-pink color of 65% fin is attractive. In marine exposure, tin—nickel is about equal to nickel—chromium deposits, but has been found to be superior ia some iadustfial exposure sites. Chromium topcoats iacrease the protection further. Tia-nickel deposits are bfitde and difficult to strip from steel. Temperature of deposits should be kept below 300°C. [Pg.164]

Plating bath Copper Steel During plating Plated Plated copper steel Hydrogen evolved below ... [Pg.354]

Solder-dipped copper/nickel-plated copper... [Pg.453]

Copper/silver-plated copper Solder-dipped copp>er/tin-plated aluminium Copper/tin-plated copper Copper/solder-dipped copper Copper/reflowed tinned copper Silver-plated copper/tin-plated copper Silver-plated copper/solder-dipped copper Gold-plated copper/tin-plated copper Aluminium/tin-plated aluminium (zincate process)... [Pg.453]

Gold-plated copper/solder-dipped copper Tin-plated aluminium/nickel-plated copper Aluminium/solder-dipped aluminium... [Pg.453]

Aluminium/brass Aluminium/copper Tin-plated aluminium/copper Aluminium/nickel-plated copper Aluminium/nickel-plated brass Aluminium/silver-plated copper Tin-plated aluminium/silver-plated copper Aluminium/gold-plated copper Tin-plated aluminium/gold-plated copper... [Pg.453]

Other electroplating solutions Other solutions, which are more rarely used for plating copper, include the fluoborate bath, the amine bath, the sulphamate bath and the alkane sulphonate bath. [Pg.519]

Pinner, R., Copper and Copper Alloy Plating, Copper Development Assoc., London (1962)... [Pg.523]

In many cases there will be a need to test metal-coated specimens, e.g. galvanised steel, tin-plated copper, nickel-plated zinc, etc. It will then be necessary to test specimens in the completely coated condition and also with the coating damaged so that the basis metal is exposed. The latter condition will provide the conditions for galvanic action between the coating and the basis metal. With sheet specimens this condition is most readily achieved by leaving cut edges exposed to the test environment. [Pg.980]

An alloy made up of tin and copper is prepared by simultaneously electroplating the two metals from a solution containing Sn(N03)2 and Cu(N03)2. If 20.0% of the total current is used to plate tin, while 80.0% is used to plate copper, what is the percent composition of tire alloy ... [Pg.511]

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