Accession Number : AD0408929


Title :   FIELD ION MICROSCOPY OF IRON WHISKERS


Descriptive Note : Final rept.


Corporate Author : PENNSYLVANIA STATE UNIV UNIVERSITY PARK


Personal Author(s) : Muller, Edward W ; Nishikawa, Osamu


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/408929.pdf


Report Date : May 1963


Pagination or Media Count : 33


Abstract : The field ion microscope images of iron whiskers from various origins were observed and differentiations between iron whiskers and specimens made of pure iron wire were studied. Indications of crystal defects such as screw dislocations and axial disordered core structures were found. The influence of various gases on the iron surface under the extremely high electric field and the diffusion of potassium ions into the iron lattice was observed. The operation of the field ion microscope with neon gas gives certain advantages for the study of easily field evaporating metals such as iron.


Descriptors :   *WHISKER COMPOSITES , *FIELD ION IMAGES , WIRE , ELECTRON MICROSCOPES , ORDER DISORDER TRANSFORMATIONS , NITROGEN , FIELD ION MICROSCOPY , WHISKERS(CRYSTALS) , HYDROGEN , IRON , FIELD EMISSION , WATER VAPOR


Subject Categories : Laminates and Composite Materials


Distribution Statement : APPROVED FOR PUBLIC RELEASE