| Effect of Multiple Friction Enhancing Fillers on Performance of NAO Type Friction Materials |
| Received:February 23, 2023 Revised:February 23, 2023 |
| DOI：10.12136/j.issn.1000-890X.2025.03.0163 |
| Key Words: friction material；friction enhancing filler；friction property；wear mechanism；mechanical propertyrties |
| Author Name | Affiliation | E-mail | | YANG Shaojie | College of Materials Science and Engineering,Wuhan University of Technology,Wuhan Hubei | 2472107412@qq.com | | ZHANG Wangyong | Shanghai Yonghuan Friction Material Haian Co,Ltd,Nantong Jiangsu | | | QIN Yan* | College of Materials Science and Engineering,Wuhan University of Technology,Wuhan Hubei | 2472107412@qq.com |
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| Abstract: |
| Vermiculite，chromite powder and zirconium silicate were selected as friction fillers，and the effects of multiple friction enhancing fillers on the mechanical properties and friction properties of non asbestos organic（NAO） type friction materials were investigated by using universal material testing machine and constant speed friction testing machine. The test results showed that the excessive friction enhancing fillers would reduce the hardnesses and shear strengths of the friction materials.When the friction coefficient was used as the index，the friction enhancing filler could increase the friction coefficients of the friction materials，there were synergistic effects among the three friction enhancing fillers，among them，the synergistic effect between vermiculite and zirconium silicate was the most obvious.When the wear rate was used as the index，there were no obvious interactions between the three friction enhancing fillers，and the diversification of the friction enhancing fillers would not increase the wear rates of the friction materials.The contents of friction enhancing fillers would affect the wear mechanism of the friction material，and with the increase of contents of frictional enhancing fillers，the wear mechanism of the friction materials changed from fatigue wear to abrasive wear. |
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