First chapter begins with an introduction to BFMC, and covers the basic definitions and nature of friction material composite applied to automotive braking system. Rudimentary aspects of friction material composite definitions based on polymeric, metallic, and multiple matrix with some of the issues at the interphases have been discussed. AFM, FIM and MD (molecular dynamics) observations and study of size of the asperity in situ and transition from microscopic, “single atom” friction to “macroscopic” friction are discussed.
Weight, velocity independence on friction coefficiency with a basic understanding of the frictional force, molecular forces are explained. An account of what exactly happens in a frictional contact surface with thermal heat affected transfer film layer has been explained in this chapter. Relationship between the aperiodic atomic structure of quasicrystals and their lowering friction, for both elastic and inelastic regimes are brought to limelight with basic character, their effect on crystallographic planes of contact. Quasicrystals and its significance for the future research applied to brake friction material composite finds a useful place in this chapter. Essential virtues of BFMC with theoretical considerations of static, kinetic coefficiency is discussed in detail. Further hot and cold compressibility, low and high speed judder, noise related issues, key role on static to dynamic coefficiency are explained. Basic information on science of noise applied to braking contact and its possible elimination sequence with matrix alteration would be a useful input in the introductory chapter.
Frictional Force—Introduction
Springer Ser. Materials
2012-01-01
61 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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