NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Effects of potassium titanate fiber on the wear of automotive brake liningsAsbestos reinforcing fiber in an automotive friction material was replaced by an experimental ingredient having better thermal stability, and the effects on wear and friction were studied. A friction materials test machine (SAE J661a) was used to determine friction and wear, under constant energy output conditions, as a function of temperature between 121 and 343 C (250 and 650 F). When potassium titanate fiber replaced one half of the asbestos in a standard commercial lining, with a 40 percent upward adjustment of phenolic resin content, wear above 204 C (400 F) was improved by 40% and friction by 30%. Tests on a full-scale inertial dynamometer supported the findings of the sample dynamometer tests. It was demonstrated that the potassium titanate fiber contributes directly to the improvement in wear and friction.
Document ID
19780039541
Document Type
Conference Proceedings
Authors
Halberstadt, M. L. (Bendix Corp. Southfield, MI, United States)
Mansfield, J. A. (Bendix Corp. Southfield, MI, United States)
Rhee, S. K. (Bendix Corp. Southfield, Mich., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Subject Category
MECHANICAL ENGINEERING
Meeting Information
International Conference on Wear of materials(St. Louis, MO)
Funding Number(s)
CONTRACT_GRANT: NAS2-7758
Distribution Limits
Public
Copyright
Other