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公开(公告)号:US06674076B1
公开(公告)日:2004-01-06
申请号:US10319395
申请日:2002-12-12
IPC分类号: G01N2300
CPC分类号: G01N33/0011 , G01N23/2251 , H01J2237/2003 , H01J2237/2605
摘要: A method and apparatus are described for imaging wet samples with an Environmental Scanning Electron Microscope (ESEM). In particular, a carrier gas is humidified such that the water vapor in the carrier gas in the sample chamber of the ESEM has a partial pressure equal to the saturated vapor pressure of water. Thus, the sample can be imaged without observing any evaporation or condensation thereon. Both the carrier gas and the water vapor may act as the imaging gas within the ESEM. The apparatus is an imaging gas delivery system for the ESEM wherein the carrier gas may be appropriately humidified.
摘要翻译: 描述了用环境扫描电子显微镜(ESEM)对湿样品成像的方法和装置。 特别地,载气被加湿,使得ESEM的样品室中的载气中的水蒸气具有等于水的饱和蒸气压的分压。 因此,可以在不观察其上的任何蒸发或冷凝的情况下成像样品。 载气和水蒸气都可以作为ESEM内的成像气体。 该装置是用于ESEM的成像气体输送系统,其中载气可以被适当地加湿。
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公开(公告)号:US06667127B2
公开(公告)日:2003-12-23
申请号:US09951655
申请日:2001-09-13
申请人: Paul D. Beattie , David P. Wilkinson , Paul Kozak , Haijiang Wang , Sheilah Neumann , John Robert Gordon , Kelvin Keen-Ven Fong , Sonia Geillis Wong-Cheung , Michael Todd Davis , Bien Chiem , Lynn C. Erickson
发明人: Paul D. Beattie , David P. Wilkinson , Paul Kozak , Haijiang Wang , Sheilah Neumann , John Robert Gordon , Kelvin Keen-Ven Fong , Sonia Geillis Wong-Cheung , Michael Todd Davis , Bien Chiem , Lynn C. Erickson
IPC分类号: H01M804
CPC分类号: H01M8/0239 , H01M8/0234
摘要: Fluid diffusion layers with favorable mechanical and electrical properties are prepared for fuel cell electrodes by impregnating a porous carbonaceous web with a carbonizable polymer having pyrrolidone functionality and then carbonizing the pyrrolidone polymer. The polymer having pyrrolidone functionality is stabilized against vaporization by use of an oxidization step prior to carbonization. The fluid diffusion layers are particularly suitable for use as gas diffusion layers in solid polymer electrolyte fuel cells.
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公开(公告)号:US07824821B2
公开(公告)日:2010-11-02
申请号:US11024047
申请日:2004-12-28
CPC分类号: H01M8/0206 , H01M8/0213 , H01M8/0221 , H01M8/0223 , H01M8/0276 , H01M8/0284 , H01M8/241 , Y10T428/31678
摘要: The invention provides a fuel cell metallic separator, wherein the metallic plate's edges include a resin portion comprising the communication ports. The resin portion around the communication ports is shaped so as to be capable of interlocking with a fuel cell stack component adjacently located in a fuel cell system. The invention also provides a resin portion capable of press fitting or thermal bonding with adjacent a fuel cell stack components.
摘要翻译: 本发明提供了一种燃料电池金属隔板,其中金属板的边缘包括包括连通端口的树脂部分。 连通端口周围的树脂部分成形为能够与相邻位于燃料电池系统中的燃料电池堆组件互锁。 本发明还提供一种能够与燃料电池堆组件相邻的压配合或热粘合的树脂部分。
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