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    • 4. 发明授权
    • Protective coating for metallic substrates
    • 金属基材的保护涂层
    • US4835062A
    • 1989-05-30
    • US836628
    • 1986-03-05
    • Helmut Holleck
    • Helmut Holleck
    • C23C14/06C23C28/04
    • C23C28/044
    • A protective coating for metallic substrates consists of a plurality of layers having a total thickness ranging from 0.1 to 10.mu., an individual thickness for each layer ranging from 0.5 to 40 nm, and a total number of layers which does not exceed 20,000, each layer being comprised of one kind of at least two kinds of crystalline hard substances and being arranged in a sequentially alternating order with respect to the others, the crystalline hard substances having phase interfaces with respect to one another which are at least crystallographically partially coherent. In an alternate embodiment, the protective coating is a single layer which is a superfinely dispersed mixture of the crystalline hard substances. The multi-layered embodiment is provided by a method which includes positioning the metallic substrate in a physical vapor deposition apparatus; providing at least two cathodes in the apparatus, each cathode being comprised of a different kind of crystalline hard substance; continuously moving the metallic substrate sequentially past each cathode; and causing the vapor deposition of the crystalline hard substances on the metallic substrate as a protective coating having a plurality of layers. The single-layered embodiment is provided by an alternate method in which one cathode is provided and is comprised of at least two kinds of crystalline hard substances. These protective coatings have a resistance to wear which exceeds that for a coating comprised of any one of the crystalline hard substances alone.
    • 用于金属基底的保护涂层由总厚度为0.1-10μm的多个层组成,每一层的单独厚度为0.5〜40nm,层数总和不超过20,000层 由一种至少两种结晶硬质物质组成,并以相对于其它物质顺序交替排列的方式,所述结晶硬物质相互之间具有至少在晶体学部分相干的相界面。 在替代实施例中,保护涂层是单层,其是结晶硬物质的超细分散混合物。 多层实施例通过包括将金属基板定位在物理气相沉积设备中的方法来提供; 在设备中提供至少两个阴极,每个阴极由不同种类的结晶硬物质组成; 连续地将金属基板顺序地移动通过每个阴极; 并且使金属基体上的结晶硬物质气相沉积为具有多个层的保护涂层。 单层实施例由提供一种阴极并由至少两种结晶硬物质构成的替代方法提供。 这些保护涂层具有耐磨性,其超过单独使用任何一种结晶硬质物质的涂层。