Accession Number:

AD0832431

Title:

FRICTION AND WEAR OF SOLID MATERIALS SLIDING IN ULTRAHIGH VACUUM AND CONTROLLED, GASEOUS ENVIRONMENTS.

Descriptive Note:

Summary rept. 1 Mar 67-29 Feb 68,

Corporate Author:

GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV

Personal Author(s):

• Haltner, Arthur J.

Report Date:

1968-04-01

Pagination or Media Count:

75.0

Abstract:

Improvements have been made in the ultrahigh vacuum friction and wear apparatus UHVFW previously developed. A new normal force feedthrough has been constructed and installed which permits continuous variation of the normal force to in excess of 9 kg. Cleanliness of the foreline pumping system has been improved with the installation of sorption pumps to replace the mercury diffusion pump previously used. A redesign of the gas inlet system has made it possible for the first time to control the gaseous environment inside the chamber of the ultrahigh vacuum friction apparatus. Author

Descriptors:

• *WEAR RESISTANCE
• SPACE ENVIRONMENTS
• SOLIDS
• FRICTION
• GASES
• LIFE EXPECTANCY(SERVICE LIFE)
• RELIABILITY
• VACUUM SEALS
• PRESSURE
• TORQUE
• LUBRICATION
• KETONES
• ACETONES
• STRAIN GAGES
• TRANSDUCERS
• VACUUM PUMPS
• CRYOGENICS
• MERCURY

Subject Categories:

• Lubricants and Hydraulic Fluids
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE