Application of Cold Spray

Victor K. Champagne, Victor K. Champagne, Dmitry Dzhurinskiy, Emil Strumban

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review


Since the 1980s, the National Aeronautics and Space Administration has used a concept referred to as Technology Readiness Level or TRL as a means to assess the maturity of a particular technology and developed a scale to compare technologies. Figure 6.1 summarizes the various stages of the TRL ( In 1999, the Department of Defense (DoD) adopted a similar TRL concept to assess emerging technologies and incorporated it into their programs to have a formalized methodology for technology transition. The DoD, Technology Readiness Assessment (TRA) Guidance is a document prepared by the Assistant Secretary of Defense for Research and Engineering and is “a systematic, metricsbased process that assesses the maturity of, and the risk associated with, critical technologies to be used in Major Defense Acquisition Programs (Department of Defense, TRA Guidance, 2011).

Original languageEnglish
Title of host publicationCold Gas Dynamic Spray
PublisherCRC Press
Number of pages50
ISBN (Electronic)9781466584433
ISBN (Print)9781138411432
Publication statusPublished - 1 Jan 2016
Externally publishedYes


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