Production of single phase alloy parts by reduction of oxides
    15.
    发明授权
    Production of single phase alloy parts by reduction of oxides 失效
    通过还原氧化物生产单相合金零件

    公开(公告)号:US4236924A

    公开(公告)日:1980-12-02

    申请号:US2988

    申请日:1979-01-12

    CPC classification number: B22F3/001

    Abstract: In the process of producing metal alloy parts by the reduction of powder metal oxide compacts, it has been discovered that single phase alloy parts may be produced by an agglomerated mixture of metal oxides without a separate annealing step. The metal oxide mixture is formed into agglomerates by spray drying a solution of metal salts which are subsequently decomposed, or other techniques, compacted to the desired shape, and then reduced in a hydrogen atmosphere at high temperature. In the case of alloys that would otherwise segregate, a quenching step follows the reduction of the metal oxide shape. As only oxides are involved prior to reduction, problems with surface oxidation are avoided. A sintering step in air can be used to give the oxide compact structural integrity before reduction.

    Abstract translation: 在通过粉末金属氧化物压块的还原制造金属合金部件的过程中,已经发现单相合金部件可以通过金属氧化物的聚集混合物而不用单独的退火步骤来生产。 金属氧化物混合物通过喷雾干燥后续分解的金属盐溶液或其它技术压制成所需形状,然后在高温下在氢气气氛中还原,形成附聚物。 在否则会分离的合金的情况下,淬火步骤遵循金属氧化物形状的减少。 由于在还原之前仅涉及氧化物,所以避免了表面氧化的问题。 空气中的烧结步骤可以用于在还原前赋予氧化物紧密的结构完整性。

    Liquid-semiconductor photocell using sintered electrode
    16.
    发明授权
    Liquid-semiconductor photocell using sintered electrode 失效
    液晶半导体光电池使用烧结电极

    公开(公告)号:US4084044A

    公开(公告)日:1978-04-11

    申请号:US769949

    申请日:1977-02-18

    CPC classification number: H01G9/20 H01M14/005 Y02E10/542 Y10T29/49108

    Abstract: Liquid-semiconductor photocells have received attention recently for use in solar power devices. Alternatives to single crystal semiconductors have been sought to reduce the cost of the photocells. According to this invention, the semiconductor is made from a pressure sintered and vapor annealed semiconductor. The electrode is relatively inexpensive to make and the efficiency of the solar cell compares favorably to the efficiency of solar cells using single crystal electrodes.

    Abstract translation: 近来,液体半导体光电池已经受到关注,用于太阳能发电装置。 已经寻求单晶半导体的替代方案来降低光电池的成本。 根据本发明,半导体由压力烧结和蒸气退火的半导体制成。 电极制造成本相对便宜,并且太阳能电池的效率与使用单晶电极的太阳能电池的效率相比是有利的。

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