Characterization of Niobium, Tantalum and Chromium Sputtered Coatings on Steel Using Eddy Currents
Abstract
A method that uses induced eddy current for characterization of niobium, tantalum and chromium sputtered coating on steel is presented in this paper. The objective of this work is to find the correlation between the sputtering conditions and resistivity of coatings and to develop a system for fast inspection of coatings as a coating quality control tool during production as well as in the field for determining coating degradation levels. A two-probe differential system having higher sensitivity and less noise than a one-probe system with 2D scanning ability was developed. A computer program that controls an XY table and performs fast data acquisition was written. Resistivity maps of the niobium, tantalum and chromium coated samples were constructed and are shown in the paper.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 2004
- Accession Number
- ADA597926
Entities
People
- Changqing Lee
- Chris Mulligan
- Yaron Danon
Organizations
- United States Army Armament Research, Development and Engineering Center