Joint with application in electrochemical devices
    3.
    发明授权
    Joint with application in electrochemical devices 有权
    联合应用于电化学装置

    公开(公告)号:US07794170B2

    公开(公告)日:2010-09-14

    申请号:US11112122

    申请日:2005-04-22

    IPC分类号: F16B7/10 H01M10/44

    摘要: A joint for use in electrochemical devices, such as solid oxide fuel cells (SOFCs), oxygen separators, and hydrogen separators, that will maintain a hermetic seal at operating temperatures of greater than 600° C., despite repeated thermal cycling excess of 600° C. in a hostile operating environment where one side of the joint is continuously exposed to an oxidizing atmosphere and the other side is continuously exposed to a wet reducing gas. The joint is formed of a metal part, a ceramic part, and a flexible gasket. The flexible gasket is metal, but is thinner and more flexible than the metal part. As the joint is heated and cooled, the flexible gasket is configured to flex in response to changes in the relative size of the metal part and the ceramic part brought about by differences in the coefficient of thermal expansion of the metal part and the ceramic part, such that substantially all of the tension created by the differences in the expansion and contraction of the ceramic and metal parts is absorbed and dissipated by flexing the flexible gasket.

    摘要翻译: 用于电化学装置的接头,例如固体氧化物燃料电池(SOFC),氧气分离器和氢气分离器,其将在高于600℃的工作温度下保持气密密封,尽管重复的热循环超过600° C.在恶劣的操作环境中,接头的一侧连续暴露于氧化气氛,另一侧连续暴露于湿的还原气体。 接头由金属部件,陶瓷部件和柔性衬垫形成。 柔性垫片是金属,但比金属部件更薄,更柔韧。 当接头被加热和冷却时,柔性衬垫被配置为响应于由于金属部件和陶瓷部件的热膨胀系数的差异而导致的金属部件和陶瓷部件的相对尺寸的变化而弯曲, 使得由陶瓷和金属部件的膨胀和收缩的差异产生的基本上所有的张力通过弯曲柔性垫片被吸收和消散。

    High-Temperature Air Braze Filler Materials And Processes For Preparing And Using Same
    10.
    发明申请
    High-Temperature Air Braze Filler Materials And Processes For Preparing And Using Same 审中-公开
    高温空气钎焊填料材料和工艺准备和使用相同

    公开(公告)号:US20090016953A1

    公开(公告)日:2009-01-15

    申请号:US12170593

    申请日:2008-07-10

    IPC分类号: C01D1/02 C01G57/00 B29B9/00

    摘要: High-temperature air braze filler materials composed of various ternary metal alloys are described. Noble metals (M) are added as a ternary constituent to a silver-copper oxide (Ag—CuOx) system. The silver (Ag) component is directly substituted with the noble metal to form a series of alloys. Addition of the noble metal increases the solidus and liquidus temperatures of the resulting air braze filler metals and increases temperatures under which seals and other sealing components formed from these filler metals can be employed.

    摘要翻译: 描述了由各种三元金属合金组成的高温空气钎焊填料。 将贵金属(M)作为三元组分加入到银 - 铜氧化物(Ag-CuOx)体系中。 银(Ag)成分被贵金属直接取代,形成一系列合金。 添加贵金属增加了所得空气钎焊填充金属的固相和液相线温度,并提高了可以使用由这些填充金属形成的密封件和其它密封部件的温度。