Abstract

An apparatus is described by which in-microscope gas-specimen reactions are possible without recourse to gas containment or aid of an auxiliary vacuum system. The existing hot stage for the JEM-6A electron microscope in combination with the liquid nitrogen trap normally used with the cooling attachment is converted into a heated stage gas specimen reactor for transmission electron microscopy. The apparatus is described and preliminary results on the controlled oxidation of copper, iron, and nickel metal and the reduction of their oxides are discussed.

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