Fine grain niobium sheet via ingot metallurgy
    1.
    发明申请
    Fine grain niobium sheet via ingot metallurgy 审中-公开
    通过锭冶金制造细晶铌片

    公开(公告)号:US20070044873A1

    公开(公告)日:2007-03-01

    申请号:US11216498

    申请日:2005-08-31

    申请人: Paul Aimone

    发明人: Paul Aimone

    IPC分类号: C22F1/18

    摘要: A method of making an alloy of niobium that includes: A) forming a blend comprising niobium powder and a powder of a metal selected from the group consisting of yttrium, aluminum, hafnium, titanium, zirconium, thorium, lanthanum and cerium and pressing the blend to form pressed blend; B) attaching the pressed blend to an electrode comprising niobium; C) melting the electrode and pressed blend under vacuum arc remelting conditions, such that the blend mixes with the melted electrode; D) cooling the melted electrode to form an alloy ingot; and E) applying thermo-mechanical processing steps to the alloy ingot to form a wrought product. The method provides a fully recrystallized niobium wrought product with a grain size finer that ASTM 5, that can be used to make deep drawn cups and sputtering targets.

    摘要翻译: 一种制造铌合金的方法,其包括:A)形成包含铌粉末和选自钇,铝,铪,钛,锆,钍,镧和铈的金属粉末的混合物并压制所述共混物 形成压制混合物; B)将压制的共混物连接到包含铌的电极; C)在真空电弧重熔条件下熔化电极和压制共混物,使得共混物与熔融电极混合; D)冷却熔融的电极以形成合金锭; 和E)将热机械加工步骤应用于合金锭以形成锻造产品。 该方法提供了完全再结晶的铌锻造产品,其具有比ASTM 5更精细的粒度,可用于制造深拉杯和溅射靶。

    Removal of binder from Ta products
    8.
    发明授权
    Removal of binder from Ta products 失效
    从Ta产品中去除粘合剂

    公开(公告)号:US5470525A

    公开(公告)日:1995-11-28

    申请号:US269580

    申请日:1994-07-01

    摘要: Tantalum anode pellets or tantalum powders are treated to remove carbon content (mostly attributable to binders used in pressing the powders to pellet form and/or sintering of the pellets) by an aqueous leach at 50.degree.-200.degree. F. in lieu of the conventional complex distillation/decomposition methods.

    摘要翻译: 处理钽阳极丸或钽粉以除去碳含量(主要归因于用于将粉末压制成颗粒形式和/或烧结颗粒的粘合剂)通过在-50°-200°F的水性浸出代替常规 复合蒸馏/分解方法。