National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Cost-Effective Method for Producings Self Supported Palladium Alloy Membranes for Use in Efficient Production of Coal Derived Hydrogen. Quarterly Technical Progress Report. for 9/09/03 to 03/31/04.

DE2004829580

Publication Date	2004
Page Count	14
Abstract	Extending upon development efforts last quarter to produce ''free-standing'', copper and palladium alloy films, the goal this quarter has been to produce pinhole-free, Pd-Cu alloy films up to 5 x 5 inches in area (1-3 microns thick) using both magnetron sputtering and e-beam evaporation on PVA (Solublon) and polystyrene backing materials. A set of experiments were conducted to assess processing methods/solutions chemistry for removing the polymer backing material from the Pd-Cu film. For all of the alloy films produced to this point, we were unable to produce pinhole-free films on plastic although we were able to produce free-standing Pd-Cu films at less than 0.5 microns thick with minimal intrinsic stress. Subsequently, to evaluate gas permeation and leakage across the films, two films were sandwiched together on top of a porous Monel support disc (25 mm in diameter) and then tested in a leak test apparatus. Using two Cu films (10 micron thickness total) in the sandwich configuration, leak rates were about 20% of the background leak rate.
Keywords	Copper Pallidium Pallidium alloys Coal derived alloys Hydrogen Fabrication Magnetron sputtering Polystyrene Polyvinyl alcohol Thin films E-beam evaporation Backlighting techniques Polymer backing
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Southwest Research Inst., San Antonio, TX.; Colorado School of Mines, Golden.; Department of Energy, Washington, DC.; National Energy Technology Lab., Pittsburgh, PA.
Supplemental Notes	Prepared in cooperation with Colorado School of Mines, Golden. and National Energy Technology Lab., Pittsburgh, PA. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200519

Cost-Effective Method for Producings Self Supported Palladium Alloy Membranes for Use in Efficient Production of Coal Derived Hydrogen. Quarterly Technical Progress Report. for 9/09/03 to 03/31/04.

Cost-Effective Method for Producings Self Supported Palladium Alloy Membranes for Use in Efficient Production of Coal Derived Hydrogen. Quarterly Technical Progress Report. for 9/09/03 to 03/31/04.
DE2004829580

Publication Date	2004
Page Count	14
Abstract	Extending upon development efforts last quarter to produce ''free-standing'', copper and palladium alloy films, the goal this quarter has been to produce pinhole-free, Pd-Cu alloy films up to 5 x 5 inches in area (1-3 microns thick) using both magnetron sputtering and e-beam evaporation on PVA (Solublon) and polystyrene backing materials. A set of experiments were conducted to assess processing methods/solutions chemistry for removing the polymer backing material from the Pd-Cu film. For all of the alloy films produced to this point, we were unable to produce pinhole-free films on plastic although we were able to produce free-standing Pd-Cu films at less than 0.5 microns thick with minimal intrinsic stress. Subsequently, to evaluate gas permeation and leakage across the films, two films were sandwiched together on top of a porous Monel support disc (25 mm in diameter) and then tested in a leak test apparatus. Using two Cu films (10 micron thickness total) in the sandwich configuration, leak rates were about 20% of the background leak rate.
Keywords	Copper Pallidium Pallidium alloys Coal derived alloys Hydrogen Fabrication Magnetron sputtering Polystyrene Polyvinyl alcohol Thin films E-beam evaporation Backlighting techniques Polymer backing
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Southwest Research Inst., San Antonio, TX.; Colorado School of Mines, Golden.; Department of Energy, Washington, DC.; National Energy Technology Lab., Pittsburgh, PA.
Supplemental Notes	Prepared in cooperation with Colorado School of Mines, Golden. and National Energy Technology Lab., Pittsburgh, PA. Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200519