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  • What is the Purpose of a Gas Diffusion Layer (GDL)?
    The Gas Diffusion Layer (GDL) plays several critical roles in a typical fuel cell application and is often integrated as part of the Membrane Electrode Assembly (MEA). Typical applications that use GDLs consist of...
  • TIG Welding
    Often called TIG welding (Tungsten Inert Gas), this welding process joins metals by heating them with a tungsten electrode which should not become part of the completed weld. Filler metal is sometimes used and argon inert gas or inert gas mixtures are used for shielding. Consumables: tungsten
  • Stick Welding
    , creating a weld pool and depositing a consumable metal electrode into the joint. The electrode's protective coating also acts as a shielding gas, protecting the weld and ensuring its purity and strength. Best for windy conditions and adverse environments.
  • MIG Welding Guide
    IG Welding (GMAW or Gas Metal Arc Welding) — An arc welding process which joins metals by heating them with an arc. The arc is between a continuously fed filler metal (consumable) electrode and the workpiece. Externally supplied gas or gas mixtures provide shielding. Common MIG welding is also
  • Welding
    as to the materials that can be joined. Diffusion welding is employed primarily to join high-strength materials. In arc welding, an arc between an electrode and the workpiece generates heat. Shielding the molten weld metal from the atmosphere with gases fed in or generated by the weld reaction
  • Cutting and Weld Preparation; The Many Faces of Plasma Cutting (.pdf)
    Plasma cutting is a thermal cutting process in which a beam of ionized gas heats an electrically conductive metal beyond its melting point and flushes molten metal through the kerf of the cut. The electrical arc is produced between the electrode (negative potential) in the torch and the workpiece
  • U.S. Fuel Cell and Battery Patents - April 2002 FCT - 7MS.com
    U.S. FUEL CELL AND BATTERY PATENTS Compiled by Eddie T. Seo Official Gazette, Volume 1255 (February 2002) U.S. 6,343,949 (20020205), Modular jumper cable, Marvin Floyd. U.S. 6,344,235 (20020205), Method of producing an electrode for non-aqueous electrolytic cells, Tadayoshi Iijima, Shigeo Kurose
  • High Rate and High Efficiency Hydrogen Generation via Water Electrolysis Catalyzed by Nano Powders (.pdf)
    Over 90% of all hydrogen used today is made from steam-reformed petroleum. This process produces greater than 5 kg of carbon dioxide for each kg of hydrogen if using methane and even more if using natural gas. Hydrogen made from this process is about 70% energy efficient and costs about $4.50 per

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