skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Atmospheric degradation of connector materials.


Abstract not provided.

; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: Proposed for presentation at the Corrosion 2007 held March 12-15, 2007 in Nashville, TN.
Country of Publication:
United States

Citation Formats

Enos, David George, Moffat, Harry K., and Sun, Amy Cha-Tien. Atmospheric degradation of connector materials.. United States: N. p., 2007. Web.
Enos, David George, Moffat, Harry K., & Sun, Amy Cha-Tien. Atmospheric degradation of connector materials.. United States.
Enos, David George, Moffat, Harry K., and Sun, Amy Cha-Tien. Thu . "Atmospheric degradation of connector materials.". United States. doi:.
title = {Atmospheric degradation of connector materials.},
author = {Enos, David George and Moffat, Harry K. and Sun, Amy Cha-Tien},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Mar 01 00:00:00 EST 2007},
month = {Thu Mar 01 00:00:00 EST 2007}

Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • The gradual and progressive soiling of structures exposed to the atmosphere is commonplace. Wooden homes required painting every few years for aesthetic purposes as well as for preservation, while public buildings, houses of worship, and statuary require occasional cleaning of their exterior because of gradual soiling. The soilant is usually a component of atmospheric aerosols. This paper presents the results of a study that attempts to identify the components of the atmospheric aerosol primarily responsible for the observed soiling of exposed materials. The site chosen for the study was in Elizabeth, N.J., an urban area with a mix of residential,more » commercial, and industrial facilities. the test site was close to various sources of aerosols. Since the site is close to major highways on three sides automobile and diesel truck traffic abounds, and road dust is prevalent. Oil refineries and chemical plants lie to the south and south-west, and an international airport is located about 3 1/2 miles away.« less
  • A naturally-occurring, conjugate-wave phenomenon in mono-static laser imaging applications is caused by reciprocal scattering paths which experience identical phase delays during the double passage of an electromagnetic wave through a random phase screen or turbulent medium. This ``opposition effect`` or ``enhanced backscatter`` phenomenon is known to be caused by constructive interference between reciprocal multiple scattering paths. Reciprocal path imaging (RPI) is an attempt to exploit this phenomenon for obtaining diffraction-limited images of extended objects obscured by a random phase screen or turbulent atmosphere. The authors report upon their current effort to investigate RPI with sparse array receivers and its potentialmore » as a mechanism for achieving high-resolution imaging through a turbulent atmosphere without the use of adaptive optics for image compensation. Preliminary work is reviewed and several RPI concepts to be evaluated in the laboratory are discussed.« less
  • Abstract not provided.
  • Niobium and niobium nitride thin films are transitioning from fundamental research toward wafer scale manufacturing with technology drivers that include superconducting circuits and electronics, optical single photon detectors, logic, and memory. Successful microfabrication requires precise control over the properties of sputtered superconducting films, including oxidation. Previous work has demonstrated the mechanism in oxidation of Nb and how film structure could have deleterious effects upon the superconducting properties. This study provides an examination of atmospheric oxidation of NbN films. By examination of the room temperature sheet resistance of NbN bulk oxidation was identified and confirmed by secondary ion mass spectrometry. Asmore » a result, Meissner magnetic measurements confirmed the bulk oxidation not observed with simple cryogenic resistivity measurements.« less
  • The information in the pape is directed to those who develop and use damage functions that relate atmospheric degradation of materials to various causal agents in the atmosphere. Such relationships must be quantified mathematically as part of the overall cost-benefit considerations associated with possible pollution control strategies. Damage functions may be derived from theoretical considerations, from controlled experiments in environmental simulation chambers, from essentially uncontrolled field experiments, or from semicontrolled field experiments. The paper discusses optimum ways of combining these methods to improve the credibility and applicability of materials damage functions for use in assessments, with reference to some ofmore » the research performed for the National Acid Precipitation Assessment Program.« less