Accession Number:

ADA031009

Title:

Development of Self-Lubricating Composites Utilizing Carbonized Phenolic Matrix. Part II. A Summary Report.

Descriptive Note:

Final technical rept., 1 Aug-31 Dec 75,

Corporate Author:

MIDWEST RESEARCH INST KANSAS CITY MO

Personal Author(s):

Report Date:

1976-04-01

Pagination or Media Count:

86.0

Abstract:

Exploratory development and evaluation has been conducted on self-lubricating composites which utilize a carbonized phenolic resin CPR matrix. Composites have been prepared with as much as 59 vol. graphite fibers. Specimens have been compression-molded directly as journal liners within a metal housing or as blanks which can be machined into desired test configurations. Additives such as Sb2O3, ZnO, and tetrafluoroethylene powders have provided beneficial synergistic effects within the CPR-MoS2-fiber composites. Screening friction and wear tests have been conducted at various loads and speeds. The composites with approximately 30 vol fiber performed better at the high loads than those with lower fiber content. Oscillatory journal bearing tests have been conducted at loads from 2,000 to 12,000 psi at an average linear speed of 2.18 fpm 0.011 ms and at temperatures of 100. 400, and 600 F 311 477, and 588 K. The composites containing 31 fibers exhibited much better wear resistance than composites with 18 fiber content.

Subject Categories:

  • Lubricants and Hydraulic Fluids

Distribution Statement:

APPROVED FOR PUBLIC RELEASE