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Ideal gas: A gas that is composed of atoms or molecules that physically collide but otherwise do not interact. Low-pressure gases are generally treated as ideal gases. Also called a Perfect gas. See Non ideal gas
Ideal Gas Law: (vacuum technology) An equation in gas kinetics that relates the volume (V), pressure (P), and absolute temperature (T) of an ideal gas (PV = constant x T).
Imine: Class of compounds that have the NH radical (Imine group) attached to a carbon atom with a double bond.
Immersion cleaning: To leave the part in a cleaning solution for a period of time, often with mechanical movement of the part and/or agitation of the solution. Also called Soak cleaning.
Immersion heaters: (cleaning, electroplating) Electric heaters designed to be immersed into tanks of fluids to raise the temperature of the fluid. They may be bottom-mounted or side-mounted and may be coated to reduce corrosion. Typically 20 50 watts per square inch of heater surface.
Immersion plating: When an ion in solution that has a less negative potential than the atom of a solid in the solution spontaneously displaces the atom of the solid and deposits on the solid. Examples: Gold (+1.50 volts) plating onto copper (+0.52 volts); Lead ( ?0.126 volts) or tin ( ?0.136 volts) (from solder) plating on aluminum ( ?1.67 volts). Also called Displacement plating.

See also Electrochemical series.
Immiscible fluids: Non-soluble fluids.
Impact plating: Coating a surface by transfer of material from impacting particles on...

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The Foundations of Vacuum Coating Technology

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