为满足低压电器对于高品质电触头材料的迫切需求,同时保护稀缺资源、降低电触头成本,采用粉末冶金工艺制备了掺杂纳米SnO2-Al2O3/Cu新型电触头复合材料,并对其电导率、硬度及耐磨性能进行了研究.结果表明:复烧与冷变形工艺均可显著提高复合材料的烧结质量、密度、电导率与硬度.随着纳米Al2 O3及掺杂纳米SnO2颗粒的总含量增加,掺杂纳米SnO2-Al2 O3/Cu电触头复合材料的硬度与耐磨性能表现出了相同的变化规律,即先升高后降低.当纳米Al2 O3及掺杂纳米SnO2颗粒的总含量为0.80wt％时,复合材料的硬度与耐磨性能均达到最优;而当纳米Al2O3及掺杂纳米SnO2颗粒的总含量保持0.80wt％不变时,随纳米A12 O3颗粒的含量增加,掺杂纳米SnO2-Al2O3/Cu电触头复合材料的硬度与耐磨性能改善;当掺杂纳米SnO2颗粒的含量为0时,复合材料的耐磨性能达到了最优.因此较之掺杂纳米SnO2颗粒,纳米Al2 O3颗粒对掺杂纳米SnO2-Al2O3/Cu电触头复合材料的耐磨性能有更显著的提高作用.
参考文献
| [1] | 崔浩;谢明;杨有才;陈永泰;刘满门;张勇甲;刘捷.铜基新型电接触材料电性能分析[J].电工材料,2009(3):8-11. |
| [2] | Y.M. Shabana;B.L Karihaloo;H.X. Zhu.Influence of processing defects on the measured properties of Cu-Al_2O_3 composites: A forensic investigation[J].Composites, Part A. Applied science and manufacturing,20133(3):140-146. |
| [3] | M.F. Zawrah;Hamdia A. Zayed;Raghieba A. Essawy;Amira H. Nassar;Mohammed A. Taha.Preparation by mechanical alloying, characterization and sintering of Cu-20 wt.% Al_2O_3 nanocomposites[J].Materials & design,2013Apr.(Apr.):485-490. |
| [4] | 杨志强;刘勇;田保红;张毅.TiC/Cu-Al2O3复合材料动态再结晶临界条件[J].复合材料学报,2014(4):963-969. |
| [5] | 杨志强;刘勇;田保红;张毅.TiC（30vol％）/Cu-Al2O3复合材料热变形及动态再结晶[J].复合材料学报,2015(1):117-124. |
| [6] | 赵翔;郝俊杰;于潇;彭坤.Al2O3颗粒镀铜对铜基粉末冶金摩擦材料Al2O3-Fe-Sn-C/Cu摩擦磨损性能的影响[J].复合材料学报,2015(2):451-457. |
| [7] | J. Swingler;A. Sumption.Arc erosion of AgSnO2 electrical contacts at different stages of a break operation[J].稀有金属（英文版）,2010(03):248-254. |
| [8] | ZHENG Ji;LI Songlin;DOU Fuqi;LI Tonghui.Preparation and microstructure characterization of a nano-sized Ti4+-doped AgSnO2 electrical contact material[J].稀有金属（英文版）,2009(01):19-23. |
| [9] | 刘想梅 .纳米掺杂AgSnO<,2>电接触材料的研究[D].天津大学,2003. |
| [10] | 施利毅;张怡;张潘琪;戴清;郭妍;袁春伟.纳米SnO2/TiO2复合颗粒形态结构表征[J].功能材料,2001(5):532-533,536. |
| [11] | 王清周;陆东梅;崔春翔;徐萌.Cu基电触头用掺杂SnO2纳米粉体的制备[J].稀有金属材料与工程,2014(8):1979-1982. |
| [12] | 王军红;崔春翔;王清周;刘福才;胡宇鹏;李忠会.ZnOp/Cu复合材料的制备工艺与物理性能的研究[J].稀有金属材料与工程,2009(z1):460-463. |
| [13] | Q. Z. Wang;C. X. Cui;D. M. Lu;S. J. Bu.Fabrication and properties of a novel ZnO/Cu composite[J].Journal of Materials Processing Technology,20103(3):497-503. |
| [14] | 刘德宝;崔春翔.TiN颗粒增强铜基复合材料的制备及性能研究[J].稀有金属,2004(5):856-861. |
| [15] | 夏承东;田保红;刘平;任凤章;宋克兴;刘勇;贾淑果.冷变形对简化工艺制备Cu-Al2O3复合材料组织和性能的影响[J].铸造技术,2007(3):312-315. |
| [16] | Ren, Fengzhang;Zhi, Aijuan;Zhang, Danwen;Tian, Baohong;Volinsky, Alex A.;Shen, Xiaoni.Preparation of Cu-Al2O3 bulk nano-composites by combining Cu-Al alloy sheets internal oxidation with hot extrusion[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2015:323-328. |
| [17] | S.B. Chandrasekhar;S. Sudhakara Sarma;M. Ramakrishna;P. Suresh Babu;Tata N. Rao;B.P. Kashyap.Microstructure and properties of hot extruded Cu-1 wt% Al_2O_3 nano-composites synthesized by various techniques[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2014:46-53. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%