Produces a surface texture and chemistry that increases the thermal emittance of metal surfaces . Arc texturing process performed by creating electric arc between consumable electrode and sample . Sample material's surface roughened by electric arc while simultaneously depositing electrode material on sample surface .
Process occurs in inert gaseous atmosphere inside glove box.
Power supply connected to electrode and sample mount with arc between electrode and sample completing electric circuit . Electrode mounted in water cooled hand held holder . Argon flows over sample to reduce oxidation during arc texturing process . Typical process currents range from 10 to 20 A . Vacuum mount used for securing sample in place for texturing .