Influence of slag weight fraction on mechanical, thermal and tribological properties of polymer based friction materials. (15th January 2016)

• Record Type: Journal Article
• Authors: Wang, Zhanhong; Hou, Guihua; Yang, Zirun; Jiang, Qiong; Zhang, Feng; Xie, Minghua; Yao, ZhengJun
• Is Part Of: Materials & design. Volume 90(2016)
• Page Start: 76
• Page End: 83
• Publication Date: 2016-01-15
• Subjects: Slag -- High specific heat capacity -- Friction material -- Friction -- Wear; Materials -- Periodicals; Engineering design -- Periodicals; Matériaux -- Périodiques; Conception technique -- Périodiques; Electronic journals; 620.11
• DOI: 10.1016/j.matdes.2015.10.097
• Languages: English
• ISSNs: 0264-1275

Abstract

Abstract: This paper aimed to study the influence of blast furnace slags on mechanical, thermal and tribological properties of friction materials elaborated by the dry heat-press molding method. Physical, mechanical and thermal properties were analyzed and tribological behavior was studied for varying the extent of doping (13–43 wt.%). The results indicate that the hardness decreases from 63.6 HRL to 57.0 HRL with increasing slag content from 0 to 43 wt.%. But density is opposite for the doped samples. The impact strength gradually increases from 3.59 kJ/m 2 to 3.70 kJ/m 2 when the content of slag increases from 0 to 43 wt.%. Doping was also found to increase the friction coefficients but decrease wear rates, mass-loss and heat release. The sample S4 has a more superior and stable friction coefficient than others because of the transfer layers formed on the surface of friction materials. Graphical abstract: Highlights: Polymer based friction materials with slags were prepared. The slag can absorb lots of heat as the temperature rises. The slag could promote the thermal stability of friction materials greatly. The modified friction materials exhibit high friction coefficients and low wear.