Method of producing tungsten rhenium alloys by chemical vapor deposition
    1.
    发明授权
    Method of producing tungsten rhenium alloys by chemical vapor deposition 失效
    通过化学气相沉积法生产钨酸铼合金的方法

    公开(公告)号:US3637374A

    公开(公告)日:1972-01-25

    申请号:US3637374D

    申请日:1968-05-27

    CPC分类号: C23C26/00 C22C1/00 C23C16/56

    摘要: In a chemical vapor deposition process wherein a plurality of refractory metals is deposited on the surface of a substrate, the usual columnar grain structure of the deposited metals inherent in chemical vapor deposited coatings is rearranged to form an alloy of such metals having a strong, equiaxed grain structure, by depositing the metals in extremely thin layers wherein all adjacent layers are predominately of different metals, and then heattreating the resultant coating. As a result, diffusion of the metals through substantially all adjacent layers, and rearrangement of the grain structure occurs.

    摘要翻译: 在其中多个难熔金属沉积在基材表面上的化学气相沉积工艺中,化学气相沉积涂层中固有的沉积金属的通常的柱状晶粒结构被重新排列以形成具有强等轴 颗粒结构,通过将金属沉积在极薄的层中,其中所有相邻层主要由不同的金属组成,然后对所得到的涂层进行加热。 结果,金属通过基本上所有相邻的层的扩散和晶粒结构的重新排列。