Development of Self-Lubricating Composites Utilizing Carbonized Phenolic Matrix. Part II. A Summary Report.
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 m/s) 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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1976
- Accession Number
- ADA031009
Entities
People
- Melvin T. Lavik
- Vern Hopkins
Organizations
- MRIGlobal