Mechanisms of Atmospheric Copper Sulfidation and Evaluation of Parallel Experimentation Techniques

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A physics-based understanding of material aging mechanisms helps to increase reliability when predicting the lifetime of mechanical and electrical components. This report examines in detail the mechanisms of atmospheric copper sulfidation and evaluates new methods of parallel experimentation for high-throughput corrosion analysis. Often our knowledge of aging mechanisms is limited because coupled chemical reactions and physical processes are involved that depend on complex interactions with the environment and component functionality. Atmospheric corrosion is one of the most complex aging phenomena and it has profound consequences for the nation's economy and safety. Therefore, copper sulfidation was used as a test-case to ... continued below

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113 pages

Creation Information

BARBOUR, J. CHARLES; SULLIVAN, JOHN P.; CAMPIN, MICHAEL J.; WRIGHT, ALAN F.; MISSERT, NANCY A.; BRAITHWAITE, JEFFREY W. et al. March 1, 2002.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

A physics-based understanding of material aging mechanisms helps to increase reliability when predicting the lifetime of mechanical and electrical components. This report examines in detail the mechanisms of atmospheric copper sulfidation and evaluates new methods of parallel experimentation for high-throughput corrosion analysis. Often our knowledge of aging mechanisms is limited because coupled chemical reactions and physical processes are involved that depend on complex interactions with the environment and component functionality. Atmospheric corrosion is one of the most complex aging phenomena and it has profound consequences for the nation's economy and safety. Therefore, copper sulfidation was used as a test-case to examine the utility of parallel experimentation. Through the use of parallel and conventional experimentation, we measured: (1) the sulfidation rate as a function of humidity, light, temperature and O{sub 2} concentration; (2) the primary moving species in solid state transport; (3) the diffusivity of Cu vacancies through Cu{sub 2}S; (4) the sulfidation activation energies as a function of relative humidity (RH); (5) the sulfidation induction times at low humidities; and (6) the effect of light on the sulfidation rate. Also, the importance of various sulfidation mechanisms was determined as a function of RH and sulfide thickness. Different models for sulfidation-reactor geometries and the sulfidation reaction process are presented.

Physical Description

113 pages

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  • Other Information: PBD: 1 Mar 2002

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  • Report No.: SAND2002-0699
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/793407 | External Link
  • Office of Scientific & Technical Information Report Number: 793407
  • Archival Resource Key: ark:/67531/metadc737238

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • March 1, 2002

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • April 12, 2016, 2:28 p.m.

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BARBOUR, J. CHARLES; SULLIVAN, JOHN P.; CAMPIN, MICHAEL J.; WRIGHT, ALAN F.; MISSERT, NANCY A.; BRAITHWAITE, JEFFREY W. et al. Mechanisms of Atmospheric Copper Sulfidation and Evaluation of Parallel Experimentation Techniques, report, March 1, 2002; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc737238/: accessed January 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.