Sintered Frictional Materials Based on Cu Powders

Abstract:

Sintered frictional materials (SFMs) were fabricated by using powder metallurgical process. Powder formulations were experimented to investigate effects of Sn, C and ZrO₂ additions on mechanical and tribological properties of the sintered composites made for dry frictional materials applications. The developed SFMs consisted of non-lead friction material. Natural sand (SiO₂) and ZrO₂ were employed instead of lead oxide to provide frictional components. Interrelationships between chemical composition, sintering temperature, friction coefficient, wear behavior and mechanical property of the SFMs have been studied. It was found that sintering temperature affected hardness property of the SFMs. The hardness was also affected by SFM compositions. Friction coefficient increased with increasing ZrO₂ content. Addition of natural sand resulted in decrease of the hardness of the SFMs. Graphite also affected hardness and friction coefficient of SFMs containing no sand. Employing prealloyed Cu-Sn powders provided SFMs with better mechanical properties compared to the SFMs made of admixed Cu and Sn powders.

• Periodical: Advanced Materials Research (Volume 747)
• Pages: 55-58
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.747.55
• Online since: August 2013
• Authors: Thanyaporn Yotkeaw, Nattaya Tosangthum, Rungtip Krataitong, Monnapas Morakotjinda, Jirapat Prapai, Ruangdaj Tongsri
• Keywords: Mechanical Property, Sintered Frictional Materials, Tribology

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