Mechanisms of Military Coatings Degradation - End of Fiscal Year 2000 Report
Abstract
Although many distinguished scientists have studied the mechanisms of coating degradation and their relationship to service life, the need still exists to identify and elucidate these mechanisms in state-of-the-art military coating systems. Once accomplished, a predictive service life and life cycle cost can be optimally determined. In order to leverage this significant body of research and to comply with the multi-facility, tri-service, and academia-coordinated effort under the current Strategic Environmental Research and Development (SERDP) Mechanisms of Military Coatings Degradation task, Naval Surface Warfare Center, Carderock Division (NSWCCD), Code 624 will identify and characterize degradation in candidate military coating systems. The characterization will include accelerated- laboratory, static-field, and dynamic-field exposures via dynamic mechanical thermal analysis and density. In order to identify and conceptualize the mechanisms of degradation and to develop predictive service life models, the NSWCCD research will be combined with research at the Army Research Laboratory (ARL), the State University of New York at Stonybrook (SUNY), and the Naval Air Warfare Center (NAWC). ARL and SUNY are investigating chemical, transport, spectroscopic, and surface morphological phenomena, while NAWC is analyzing electrochemical and adhesion effects. A significant amount of data pertaining to the physical and thermal/mechanical properties at ambient laboratory conditions, as well as with the accelerated and static field exposures has now been collected and analyzed. Based on the duration of the exposures to date, curing effects rather than degradation effects have been observed and characterized.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 2000
- Accession Number
- ADA384891
Entities
People
- Anthony Eng
- Forrest Pilgrim
- Malay Patel
Organizations
- Naval Surface Warfare Center Carderock Division