Carbon substance and method for manufacturing the same, electron emission element and composite materials
    4.
    发明授权
    Carbon substance and method for manufacturing the same, electron emission element and composite materials 失效
    碳物质及其制造方法,电子发射元件和复合材料

    公开(公告)号:US07239073B2

    公开(公告)日:2007-07-03

    申请号:US10780714

    申请日:2004-02-19

    IPC分类号: H01J1/62

    摘要: A carbon substance comprises a structure and line-shaped bodies, the structure having a size ranging from about 1 μm to about 100 μm and including carbon and a metal or a metallic oxide, and the line-shaped bodies having diameters smaller than about 200 nm and including carbon as a main component thereof and growing radially from a surface of the structure. A method for manufacturing the carbon substance uses a thermal decomposition of a source gas containing carbon in the vicinity of a catalyst, wherein the catalyst comprises a first and a second materials, the first material being Ni or a Ni oxide and the second material being In or an In oxide; and the thermal decomposition is performed at a temperature ranging from about 675° C. to about 750° C. An electron emission element uses the carbon substance as an electron emission material. A composite material includes the carbon substance in its matrix.

    摘要翻译: 碳物质包括结构和线状体,该结构的尺寸范围为约1μm至约100μm,并且包括碳和金属或金属氧化物,并且直径小于约200nm的线状体 并且包括碳作为其主要成分并且从结构的表面径向生长。 制造碳物质的方法使用在催化剂附近含有碳原子气体的热分解,其中催化剂包含第一和第二材料,第一材料为Ni或Ni氧化物,第二材料为In 或In氧化物; 并且热分解在约675℃至约750℃的温度下进行。电子发射元件使用碳物质作为电子发射材料。 复合材料包括其基质中的碳物质。