Surface chemical treatment for liquid gallium or gallium alloy mirrors
    8.
    发明公开
    Surface chemical treatment for liquid gallium or gallium alloy mirrors 有权
    镓或镓的液体水平的化学表面处理

    公开(公告)号:EP1213371A3

    公开(公告)日:2002-06-19

    申请号:EP01127305.9

    申请日:2001-11-19

    申请人: UNIVERSITE LAVAL

    摘要: The invention relates to a method of treating a liquid gallium or gallium alloy surface for prolonged use as a liquid mirror. The method of the invention comprises the steps of (a) contacting the surface of liquid gallium or gallium alloy with an aqueous solution of a halogenic acid to cause dissolution of any gallium oxide present on the surface, thereby obtaining an oxide-free liquid gallium or gallium alloy surface covered with a layer of the acid solution; (b) adding to the acid solution an aqueous solution of a surfactant present in an amount to form a single bimolecular layer of surfactant at an interface between the liquid gallium or gallium alloy and water; and (c) allowing a uniform passivating oxide layer to gradually form on the oxide-free liquid gallium or gallium alloy surface, the passivating oxide layer having surface irregularities smaller than 40 nm.