利用粉末冶金技术制备了10％Ti3SiC2颗粒增强Cu基减摩、导电材料.以200,400和500 MPa的压力对烧结试样进行复压,然后复烧,以提高材料的密度.通过测量试样的密度、硬度和电阻率,探索了复压复烧对材料性能的影响,并对试样进行了通电和不通电情况下的摩擦、磨损试验.结果表明,经400 MPa复压复烧后,材料的密度和硬度得到显著提高,密度由7.309 g·cm-3增加至7.712 g·cm-3,而硬度则达到HB 114,导电性能和减摩、抗磨能力也因此得到了改善,摩擦系数有所降低,磨损量减少了68％.与未带电的情况相比,带电时的摩擦因数相对较小,但磨损量则较大.在带电磨损实验过程中,摩擦副的温度升高使样品表面的铜基体部分氧化,并起到了润滑作用,从而降低了摩擦因数.
参考文献
| [1] | 许少凡;王文芳;凤仪;颜士钦 应美芳 王成福 .碳纤维-中铜-石墨复合材料的摩擦磨损性能研究[J].摩擦学学报,1998,18(03):254. |
| [2] | 郑翼;朱家珮;欧阳锦林 .铜基电接触复合材料的研究[J].摩擦学学报,1995,15(01):19. |
| [3] | 李世波,成来飞,张立同.新型层状陶瓷材料Ti3SiC2[J].材料导报,2001(09):26-29. |
| [4] | Arunajatesan Sowmya;Carim H A .Symmetry and crystal structure of Ti3SiC2[J].Materials Letters,1994,20(5-6):319. |
| [5] | Kisi EH.;Myhra S.;Barsoum MW.;Crossley JAA. .Structure and crystal chemistry of Ti3SiC2[J].The journal of physics and chemistry of solids,1998(9):1437-1443. |
| [6] | Barsoum, M.W.;El-Raghy, T.;Rawn, C.J.;Porter, W.D.;Wang, H.;Payzant, E.A.;Hubbard, C.R. .Thermal properties of Ti_3SiC_2[J].The journal of physics and chemistry of solids,1999(4):429-439. |
| [7] | El-Raghy T;Blau P;Barsoum M W .Effect of grain size on friction and wear behavior of Ti3SiC2[J].Wear,2000,238(02):125. |
| [8] | Barsoum MW.;Elraghy T. .SYNTHESIS AND CHARACTERIZATION OF A REMARKABLE CERAMIC - TI3SIC2[J].Journal of the American Ceramic Society,1996(7):1953-1956. |
| [9] | Zhang Y;Sun Z;Zhou Y .Cu/Ti3 SiC2 composite:a new electro friction material[J].Materials Research Innovations,1999,2(03):80. |
| [10] | 高闰丰 .Ti<,3>SiC<,2>弥散强化铜基复合材料的制备和性能研究[D].武汉理工大学,2006. |
| [11] | Zheng J J;Ngai T L;Hu C X;Pan G R,Li Y Y .Effect of Ti3SiC2 content on the property of a warm compacted Cu-Ti3SiC2 composite[J].Materials Science Forum,2009,628-629:471. |
| [12] | Ngai T L;Xiao Z;Li Y Y .Studies on preparation of Ti3SiC2 particulate reinforced Cu matrix composite by warm compaction and its tribological behavior[J].Materials Science Forum,2007,534-536:929. |
| [13] | Ngai T L;Li Y Y;Zhou Z .A study on Ti3SiC2 reinforced by copper matrix by warm compaction powder metallurgy[J].Materials Science Forum,2006,532-533:596. |
| [14] | Ngai T L;Zheng J J;Tan W C;Xie H,Li Y Y .Effect of rolling on a warm compacted Ti3SiC2 particulate reinforced Cu matrix composite[J].Rare Metal Materials and Engineering,2011,40(z1):1988. |
| [15] | Zhou Y;Chen B;Wang X;Yan C .Mechanical properties of Ti3SiC2 particulate reinforced copper prepared by hot pressing of copper coated Ti3SiC2 and Cu powder[J].Materials Science and Technology,2004,20(05):661. |
| [16] | Kuang Y H;Ngai T L;Hu C X;Li Y Y .Effect of Si content on the synthesis of Ti3SiC2 bulk material by pressureless sintering[J].Materials Science Forum,2009,610-613:1263. |
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