- Author : William A. Brainard
- Publisher :
- Release : 1971
- ISBN :
- Pages : 68 pages
Preliminary Studies by Field Ion Microscopy of Adhesion of Platinum and Gold to Tungsten and Iridium
Download or read book Preliminary Studies by Field Ion Microscopy of Adhesion of Platinum and Gold to Tungsten and Iridium written by William A. Brainard and published by . This book was released on 1971 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adhesion experiments with platinum and gold contacting tungsten and iridium field-ionmicroscope emitter tips were conducted in vacuum. Platinum contacting tungsten at 300 K showed an ordered surface believed to represent mechanical transfer of the platinum onto the tungsten in an ordered manner. Gold contacting tungsten at 78 K showed essentially a random transfer with some clustering of gold atoms. God transferred onto iridium by contacting at 78 K presented an ordered appearance due to decoration of ledge sites by the gold atoms. Iridium contacted by platinum showed a highly ordered surface believed to be epitaxial transfer of platinum on the surface. Contacting iridium with platinum without vibration isolation caused large globs of platinum to transfer onto iridium in an ordered manner.