Microstructural Control in Silver-Tin Oxide Contacts
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{'SignBlockName': 'Ritchie B. Coryell', 'PO_EMAI': None, 'PO_PHON': None}
Materials with multicomponent ultrafine microstructures are                     increasing interest for use in cermets and metal matrix                         composites.  This project suggests a new approach to ultrafine                  microstructrues and to a novel process for their preparation.                   The process involves electroless plating of a metal on colloidal                nuclei.  Silver-tin oxide for use in electrical contacts is an                  example of the kind of product which might be made by the new                   process.  The principles of accretion of a dense coating on                     colloidal nuclei is the basis for this study.                                                                                                                   Electroless plating might be used to coat oxides, metals, or in                 general, colloidal particulates with a second metal.  The only                  limits on the second metal are that its salts must be soluble and               that they can be reduced to metal from solution.  Microstructural               control in the range of 5 to 100 nm should be possible.  This                   control is demonstrated in the silver-tin oxide system.
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{'Code': '5371', 'Text': 'SBIR Phase I'}
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