Accession Number : AD1046502


Title :   Reduction Expansion Synthesis of Chromium and Nickel Metal Coatings


Descriptive Note : Technical Report


Corporate Author : Naval Postgraduate School Monterey United States


Personal Author(s) : Pelar,Christopher J


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1046502.pdf


Report Date : 01 Jun 2017


Pagination or Media Count : 121


Abstract : This thesis represents a step forward in a program to provide the Department of Defense (DOD) alternative approaches to the production of anti-corrosion metal coatings. Specifically, a method was developed to make micron thick but irregular nickel coatings on iron, based on Reduction Expansion Synthesis (RES) chemistry. Previous success using RES processes to make sub-micron nickel, iron, and alloy particles provided a general direction to the program and led to the successful protocol. Physical mixtures of nickel (II) oxide particles and urea were used to create a paste. The paste was coated on an iron foil, which was briefly heated at 1100C in an inert atmosphere. Also described are partially successful attempts to develop a RES protocol to chrome coat iron. This is motivated by the need to eliminate the carcinogenic intermediate in the current electrolytic technology, hexavalent chromium.


Descriptors :   metal coatings , nickel , CHROMIUM , SURFACE PROPERTIES


Subject Categories : Coatings, Colorants and Finishes


Distribution Statement : APPROVED FOR PUBLIC RELEASE