Aging model for solid lubricants used in weapon stronglinks: Oxidation chemistry and hardware review

Technical Report · Mon Sep 01 04:00:00 EDT 1997

DOI:https://doi.org/10.2172/650268· OSTI ID:650268

Peebles, D E; Ohlhausen, J A; Dugger, M T; Varga, K S ^[1]; Bryan, R M ^[2]

---

1. Sandia National Labs., Albuquerque, NM (United States)
2. AlliedSignal Federal Manufacturing and Technology, Kansas City, MO (United States)

In support of efforts to model the performance of the MC2969 strong link for stockpile life extension, the kinetics of oxidation of the MoS{sub 2} based solid lubricant coating have been determined. The lubricant oxidation is primarily influenced by the extent of burnishing of the coating after application and curing. The activation energy for lubricant oxidation is low and agrees well with reported values for MoS{sub 2} coatings and particles. The type of substrate material and the amount of H{sub 2}O vapor present have little influence on the oxidation kinetics, but do affect the chemical species found on the surface, including sulfate species which enhance substrate corrosion. The analysis of field returned hardware shows oxidation levels within the range of those obtained throughout the oxidation study.

• Research Organization: Sandia National Labs., Albuquerque, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); USDOE Office of Energy Research, Washington, DC (United States)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 650268
• Report Number(s): SAND--97-2008C; CONF-970982--; ON: DE98000197
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
AGING
EXPERIMENTAL DATA
MOLYBDENUM SILICIDES
NUCLEAR WEAPONS
OXIDATION
PERFORMANCE
SOLID LUBRICANTS