| Effects of sintering pressure and temperature on microstructure and tribological characteristic of Cu-based aircraft brake material |
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| 作者姓名： | 熊翔 盛洪超 陈洁 姚萍屏 |
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| 作者单位： | State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China |
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| 摘 要： | A novel Cu-based P/M aircraft brake material was prepared and the effects of sintering pressure and temperature on microstructure and tribological characteristic were investigated. For the constant sintering temperature, when the sintering pressure increases from 0.5 MPa to 1.5 MPa, the porosity, wear loss and friction coefficient decrease remarkably. When the sintering pressure increases from 1.5 MPa to 2.5 MPa, the porosity further decreases but in a little degree and wear behaviors are improved slightly. However, once the sintering pressure is larger than 2.5 MPa, it has no obvious effect on microstructure and tribological characteristic. For the constant sintering pressure, when the sintering temperature increases from 900 ℃ to 930 ℃, the sintered density remarkably-increases, and wear behaviors are obviously improved. For further increasing sintering temperature to l 000 ℃, the density keeps on increasing, but wear behaviors change slightly.
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| 关 键 词： | 摩擦材料 烧结压力 烧结温度 飞机制动材料 铜基材料 微观结构 |
| 收稿时间： | 22 September 2006 |
| 修稿时间： | 2006-09-222006-11-30 |
Effects of sintering pressure and temperature on microstructure and tribological characteristic of Cu-based aircraft brake material |
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| XIONG Xiang,SHENG Hong-chao,CHEN Jie,YAO Ping-ping.Effects of sintering pressure and temperature on microstructure and tribological characteristic of Cu-based aircraft brake material[J].Transactions of Nonferrous Metals Society of China,2007,17(4):669-675. |
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| Authors: | XIONG Xiang SHENG Hong-chao CHEN Jie YAO Ping-ping |
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| Affiliation: | State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China |
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| Abstract: | A novel Cu-based P/M aircraft brake material was prepared and the effects of sintering pressure and temperature on microstructure and tribological characteristic were investigated. For the constant sintering temperature, when the sintering pressure increases from 0.5 MPa to 1.5 MPa, the porosity, wear loss and friction coefficient decrease remarkably. When the sintering pressure increases from 1.5 MPa to 2.5 MPa, the porosity further decreases but in a little degree and wear behaviors are improved slightly. However, once the sintering pressure is larger than 2.5 MPa, it has no obvious effect on microstructure and tribological characteristic. For the constant sintering pressure, when the sintering temperature increases from 900 °C to 930 °C, the sintered density remarkably-increases, and wear behaviors are obviously improved. For further increasing sintering temperature to 1000 °C, the density keeps on increasing, but wear behaviors change slightly. |
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| Keywords: | P/M friction materials sintering pressure sintering temperature |
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