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Electroless nickel immersion gold (ENIG or ENi/IAu), also known as immersion gold (Au), chemical Ni/Au or soft gold, is a metal plating process used in the manufacture of printed circuit boards (PCBs), to avoid oxidation and improve the solderability of copper contacts and plated through-holes.
The family includes Kovar, FerNiCo I, FerNiCo II, and Dumet. The name is made up of the chemical symbols of its constituent three elements. "Dumet" is a portmanteau of "dual" and "metal," because it is a heterogeneous alloy, usually fabricated in the form of a wire with an alloy core and a copper cladding. These alloys possess the properties of ...
The Notz Metal (officially Notz Metal, Inc.) is a Swiss integrated steel and wire manufacturing company based in Biel/Bienne (BE), Switzerland.Founded in 1898, the company is still privately held and managed by the third generation of the Notz family.
Very importantly, constantan can be processed for self-temperature compensation to match a wide range of test material coefficients of thermal expansion.A-alloy is supplied in self-temperature-compensation (S-T-C) numbers 00, 03, 05, 06, 09, 13, 15, 18, 30, 40, and 50, for use on test materials with corresponding thermal expansion coefficients, expressed in parts per million by length (or μm ...
Nichrome (also known as NiCr, nickel-chromium or chromium-nickel) is a family of alloys of nickel and chromium (and occasionally iron [1]) commonly used as resistance wire, heating elements in devices like toasters, electrical kettles and space heaters, in some dental restorations (fillings) and in a few other applications.
Gap Mining worked the mines for nickel until 1860, when they were closed as unprofitable. It sold the mine to Joseph Wharton in late 1862. Between 1862 and 1893, 4.5 million pounds of nickel were extracted from the site, amounting to as much as twenty-five percent of world production in some years.
The pins of the 16 A plugs are rectangle 4 (± 0.06) x 5 (± 0.06) mm wide, the corresponding openings are rectangle 4.5 (+0.2) x 5.5 (+0.2) mm wide. Distance between conductors In both the 10 A and 16 A versions, the distance between the phase conductor and the neutral conductor is 19 mm (± 0.15 mm).
Nickel silver, maillechort, German silver, [1] argentan, [1] new silver, [1] nickel brass, [2] albata, [3] or alpacca [4] is a cupronickel (copper with nickel) alloy with the addition of zinc. The usual formulation is 60% copper, 20% nickel and 20% zinc. [5] Nickel silver does not contain the element silver. It is named for its silvery ...