Possible stibnite transformation at the friction surface of the semi-metallic friction composites designed for car brake linings
Source abstract
Abstract
Abstract After a friction process several changes in phase composition of friction composites are often registered. High temperature, accompanied by high pressure induced during braking can cause initiation of chemical reactions which do not run at room or elevated temperatures under the atmospheric pressure. Most of the studies in the field of tribochemistry at friction surfaces of automotive semi-metallic brake linings deal with phenolic resin degradation and corrosion of metallic components. The paper addresses the formation of elemental antimony as well as the alloying process of iron with antimony observed on the surface of laboratory prepared semi-metallic friction composites containing stibnite. The role of alumina abrasives in the process of stibnite transformation is also discussed and mechanism of stibnite transformation was outlined.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Brake Systems and Friction Analysis · Tribology and Wear Analysis · Surface Treatment and Coatings
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (22)
Show source-provided references
1. Optimization of a commercial brake pad formulation10.1002/app.10606 ↗
2. Friction composites: traditions and new solutions (review). I. Powder materials10.1007/s11106-005-0025-2 ↗
3. P.J. Blau, Compositions, functions, and testing of friction brake materials, Technical report by oak ridge national laboratory, Tennessee, 2001.10.2172/788356 ↗
4. Review of automotive brake friction materials10.1243/0954407041856773 ↗
5. On the nature of tribological contact in automotive brakes10.1016/S0043-1648(01)00849-3 ↗
6. Wear and contact conditions of brake pads: dynamical in situ studies of pad on glass10.1016/S0043-1648(01)00573-7 ↗
7. Influence of metals on the phenol-formaldehyde resin degradation in friction composites10.1016/j.polymdegradstab.2003.09.012 ↗
8. Mechanical and chemical investigation of the temperature influence on the tribological mechanisms occurring in OMC/cast iron friction contact10.1016/j.wear.2006.12.080 ↗
9. The effects of antimony trisulfide (Sb2S3) and zirconium silicate (ZrSiO4) in the automotive brake friction material on friction characteristics10.1016/S0043-1648(00)00314-8 ↗
10. Tribological properties of solid lubricants (graphite, Sb2S3, MoS2) for automotive brake friction materials10.1016/j.wear.2005.04.003 ↗
11. An energy dispersive X-ray and imaging X-ray photoelectron spectroscopical study of transfer film chemistry and its influence on friction coefficient10.1088/0022-3727/25/1A/008 ↗
12. Antimony
13. On friction layer formation in polymer matrix composite materials for brake applications10.1016/S0043-1648(01)00873-0 ↗
14. Complementary effects of solid lubricants in the automotive brake lining10.1016/j.triboint.2006.01.022 ↗
15. H. Remy, Lehrbuch der Anorganischen Chemie, Band I, Akademische Verlagsgesellschaft Geest & Portig K.-G., Leipzig, 1957.
16. Preparation of nanosized antimony by mechanochemical reduction of antimony sulphide Sb2S310.1016/j.jallcom.2006.08.169 ↗
17. Antimony in brake pads-a carcinogenic component?10.1016/j.jclepro.2003.10.008 ↗
18. Particle size and composition distribution analysis of automotive brake abrasion dusts for the evaluation of antimony sources of airborne particulate matter10.1016/j.atmosenv.2007.02.005 ↗
19. Antimony trioxide and antimony trisulfide
20. Friction layers and friction films on PMC brake pads10.1016/j.wear.2003.12.017 ↗
21. Diagram no. 1101408, Alloy Phase Diagrams Center, ASM International (online), c2007, http://www1.asminternational.org/asmenterprise/APD/.
22. HSC Chemisty 6 [software], version 6.12, Outokumpu Technology, Pori, Finland, 2006.