KLAUS GULDBRANDSEN / SCIENCE PHOTO LIBRARY KLAUS GULDBRANDSEN / SCIENCE PHOTO LIBRARY
Electric arc furnace. Plasma or electric arc furnace in operation. The furnace works by passing an electric arc between graphite electrodes in a vaccum. This acts like a lightning bolt, heating up materials placed between the electrodes as it passes through them. Temperatures of thousands of degrees celsius can be achieved, enough to melt metals. Photograph of a plasma furnace used in the production of nickel-titanium alloys.
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