Technical Reference Library - Catalog

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Returned 18 results with the keyword "brake pads":

  1.    Anderson, A. "Friction and Wear of Automotive Brakes," pp. 569-577 in Blau, P. J., ed., ASM Handbook Volume 18, Friction, Lubrication, and Wear Technology, ASM International, 1992.

    Review article describes some of the major factors considered in designing automotive brake linings, including the general composition, wear behaviors (including brake system properties that affect wear like brake temperature), frictional characteristics, frictional performance, and methods commonly used to evaluate brakes in a laboratory.

    brake pads
  2.    Harper, G. A. Brakes and Friction Materials, The History and Development of the Technologies, Mechanical Engineering Publications Limited, 1998

    Reviews history and types of vehicle brake systems, including friction materials used as brake linings (brake pads).

    brake pads
  3.    Sasaki, Y. (Akebono) "Development of Non-Asbestos Friction Materials," presented at Aramid Fibers, 5th Akzo Symposium, undated.

    Review paper identifies some key characteristics (like friction, fade, wear, judder, vibration, noise, corrosion, thermal properties) for design of vehicle brake friction materials (brake pads). Provides insight into the brake pad formulation development process.

    brake pads
  4.    Wirth, A.; Whitaker, R.; Turner, S.; Fixter, G. "X-ray Photoelectron Spectroscopy Characterisation of Third Body Layers Formed During Automotive Friction Braking," Journal of Electron Spectroscopy and Related Phenomena, 1994, Vol. 68, pp. 675-683.

    Chemical analysis of the thin film of material transferred from a vehicle brake friction material (brake pad) to the brake surface (e.g., brake rotor) provides insight as to the way that chemical components of a brake pad affect the brake's performance.

    wear debris, brake pads
  5.    Wirth, A.; Eggleston, D.; Whitaker, R. "A Fundamental Tribochemical Study of The Third Body layer Formed During Automotive Friction Braking," Wear, 1994, Vol. 179, pp. 75-81

    Chemical analysis of the thin film of material transferred from a vehicle brake friction material (brake pad) to the brake surface (e.g., brake rotor) provides insight as to the way that chemical components of a brake pad affect the brake's performance and the relationships of various braking properties to the brake pad formulation.

    wear debris, brake pads
  6.    Wirth, A.; Whitaker, R. "An Energy Dispersive X-ray and Imagining X-ray Photoelectron Spectroscopical Study of Transfer Film Chemistry and its Influence on Friction Coefficient," Journal of Physics D:Applied Physics, 1992, Vol. 25, pp. A38-A43.

    Chemical analysis of the thin film of material transferred from a vehicle brake friction material (brake pad) to the brake surface (e.g., brake rotor) shows a relationship between the film's chemical composition and the coefficient of friction for the brake.

    wear debris, brake pads
  7.    California Air Resources Board, Technical Support Division, Methodology for Estimating Emissions from On-Road Motor Vehicles, November 1996 (6 volumes).

    Explains the models used by the State of California to estimate vehicle-related air pollutant emissions. These models include estimates of particulate emissions from vehicle brakes, tires, and tailpipes (EMFAC7G, Volume II). Vehicle brake emissions estimates are based on outdated asbestos brake pad emissions data from Cha et al. (see #015). Models are updated regularly by the California Air Resources Board; the latest version is EMFAC2001, which is available on the Internet: http://arbis.arb.ca.gov/msei/msei.htm

    air, particle size distribution, brake pads
  8.    Brake Pad Partnership Project, Copper Use Monitoring Program Results for Model Years 1998, 1999, and 2000, December 14, 2001.

    Report of copper use in original equipment automotive friction materials (brake pads) for 1998, 1999, and 2000 model year passenger vehicles.Available on the Internet: www.suscon.org/brakepad/reference/library_archives/CuUseMonitoringProgramFinalReport.pdf

    copper-brake, brake pads
  9.    Blau, P. J. (Oak Ridge National Laboratory) Compositions, Functions, and Testing of Friction Brake Materials and Their Additives, prepared for the U. S. Department of Energy, Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Transportation Technologies, ORNL/TM-2001/64, August 2001

    Overview report describes brake pad formulation, the function of ingredients and additives, typical compositions, and test methods. Prepared as a resource report for the development of advanced brake materials for heavy-duty vehicles. Available on the Internet: www.ornl.gov/~webworks/cppr/y2001/rpt/112956.pdf

    brake pads
  10.    Brake Pad Partnership Project, Copper Use Monitoring Program Results for Model Years 1998 - 2001, February 11, 2003.

    Report of copper use in original equipment automotive friction materials (brake pads) for 1998, 1999, 2000, and 2001 model year passenger vehicles. Available on the Internet: www.suscon.org/brakepad/reference/library_archives/CuUMP_Report01-03.pdf

    copper-brake, brake pads
  11.    Westerlund, K. G. (Stockholm Air Quality and Noise Analysis) Metal Emissions from Stockholm Traffic—Wear of Brake Linings, prepared for the Stockholm Environment and Health Protection Administration and the Swedish Environmental Protection Agency, April 2001

    Reports the metals (cadmium, copper, chromium, nickel, lead, and zinc) content of selected original equipment and replacement vehicle brake pads. The study is intended to reflect the vehicle mix in Stockholm and thus may substantially differ from data for the U.S. vehicle fleet. Copper content in tested new passenger car brake pads ranged from 0.006% to 23.4%, with an average of 11.8%. In replacement passenger car brake pads, copper content ranged from 0.01% to 13.2%, with an average of 7.2%. For the two major truck types (Volvo and Scania), copper was 1.5% and 0.008% respectively (bus data were similar). Overall, 96% of the copper released from vehicle brakes was estimated to be released by passenger cars, with about equal contributions from cars with original equipment brake pads and cars with replacement brake pads. Available on the Internet: www.slb.mf.stockholm.se/slb/rapporter/pdf/metal_emissions2001.pdf

    copper-brake, wear debris, brake pads
  12.    Sternbeck, J.; Sjodin, A.; Andreasson, K. "Metal Emissions from Road Traffic and the Influence of Resuspension—Results from Two Tunnel Studies," Atmospheric Environment, 2002, Vol. 36, pp. 4725-4744

    A Swedish study estimated metals emissions from vehicles, with the intent of (1) identifying metals typical for road traffic emissions, (2) determining emissions factors for the metals, and (3) investigating the factors controlling emissions factors. The study characterizes data for the vehicle mix in Sweden and thus may substantially differ from data for the U.S. vehicle fleet. Investigators collected data for metals content of air emitted from two vehicle tunnels. Most of the copper released from vehicles was attributed to vehicle brake pads. Similarly, most of the barium and antimony released from vehicles was attributed to vehicle brake pads. On the basis of differences in traffic characteristics in the two tunnels, the authors concluded that copper releases from heavy duty vehicle brake pads were relatively small. The authors propose a Cu:Sb ration of 4.6(±2.3 as a diagnostic criterion for brake wear particles.

    air, sediments-road, copper-brake, copper-road, brake pads
  13.    Trainor, J.; Duncan, T., Mangan, R. "Disc Brake Wear Debris Generation and Collection," SAE Technical Paper Series 02 BRAKE-43, 2002

    Describes the reproducible and practical dynamometer-based procedure for generating and collecting vehicle disc brake wear debris. This paper is a more formal version of #016, but does not include the wear debris characterization information. Available for purchase on the Internet: www.sae.org/servlets/productDetail?PROD_TYP=PAPER&PROD_CD=2002-01-2595

    copper-brake, wear debris, brake pads
  14.    Brake Pad Partnership Project, Copper Use Monitoring Program Results for Model Years 1998 - 2002, January 22, 2004.

    Report of copper use in original equipment automotive friction materials (brake pads) for 1998, 1999, 2000, 2001, and 2002 model year passenger vehicles.Available on the Internet: www.suscon.org/brakepad/pdfs/CuUMPFinalReport.pdf

    copper-brake, brake pads
  15.    Christoforou, C.; Schlautman, M., Characterization of Airborne Brake Wear Debris, Final Work Plan, prepared by Clemson University for the Brake Pad Partnership, May 7, 2004

    Work plan for the physical characterization of brake pad wear debris. The primary measurement will be of the aerodynamic particle size diameter, using an in-line micro orifice uniform deposit impactor (MOUDI) during generation of a representative sample of brake pad wear debris on a brake dynamometer. Available on the Internet: www.suscon.org/brakepad/pdfs/ADPSD%20Final%20Work%20Plan%2005-07-04.pdf

    air, chemistry, characterization, copper-brake, wear debris, aerodynamic diameter, particle size distribution, brake pads
  16.    Pun, B.; Seigneur, C., Air Deposition Modeling for the Environmental Fate and Transport of Copper from Vehicle Brake Pad Wear Debris, Work Plan, prepared by Atmospheric and Environmental Research, Inc. for the Brake Pad Partnership, January 2004

    Work plan for air deposition modeling of the transport of copper in vehicle brake pad wear debris. The modeling will cover the air portion of environmental transport from the point of release (from the vehicle) or re-release (from roads) to deposition in the study watershed. Available on the Internet: www.suscon.org/brakepad/reference/library_archives/AER_BPP_FinalWorkPlan01-30-04.pdf

    air, deposition, transport, copper-brake, copper-road, model-air, Castro Valley, wear debris, aerodynamic diameter, particle size distribution, brake pads
  17.    Mosleh, M.; Blau, P.J.; Dumitrescu, D. "Characteristics and Morphology of Wear Particles from Laboratory Testing of Disk Brake Materials,"Wear, 2004, Vol. 256, pp. 1128-1134.

    The geometrical characteristics and morphology of wear particles generated from brake materials are important for environmental and tribological reasons. Low- and high-speed, pin-on-disk friction and wear testing of a commercial truck brake pad material against cast iron was conducted in which wear debris was collected. The sliding speed was held constant either at 0.275 or at 5m/s, and the nominal contact pressure was varied between 0.125 and 1.25 MPa in room temperature air. In low-speed experiments, some tests were conducted with the pin in continuous sliding contact and others in which the pin specimen was raised and lowered periodically. Laser scattering examination of wear debris revealed two distinct peaks in the plot of frequency versus the mean particle size. The first peak occurs around 350 nm and does not vary with respect to the pressure and the sliding speed. The location of the second peak varies between 2 and 15 µm, depending on the pressure and the sliding speed. Energy dispersive X-ray (EDX) analysis of wear particles revealed particles having a high concentration of carbon, silicon, aluminum, iron, oxygen, molybdenum, and sulfur. It was also found that the continuity or discontinuity of sliding contact affects the size distribution of wear particles. In general, when the motion was discontinuous, as is the case in a repeated braking action, smaller wear particles are generated.

    wear debris, brake pads, particle size distribution, characterization, aerodynamic diameter
  18.    Moran, K.D. Copper Sources in Urban Runoff and Shoreline Activities, Report Prepared for Clean Estuary Partnership, TDC Environmental, 2004.

    The purpose of this report is to summarize information on the sources of copper that is carried to San Francisco Bay in urban runoff and copper that is released directly into the Bay from shoreline activities. This report: provides estimates of the amount of copper released to San Francisco Bay from each source; estimates the relative degree of uncertainty in each copper release estimate and lists the sources of uncertainty for each estimate; reviews available control measures for each copper source, providing control measure effectiveness information to the extent data are available; identifies feasible control measures for copper sources in urban runoff and shoreline activities; and identifies priorities for investigation of sources and control measures. This report was prepared for the Clean Estuary Partnership to support Technical Task 4.11, Basin Planning Assistance for Cu/Ni North of the Dumbarton Bridge.

    copper-toxicity, copper-general, copper-road, lower South San Francisco Bay, brake pads, Castro Valley, wear debris, model-air, model-water