以机械合金化CrW粉末为原料,采用真空烧结制备CrW合金进行电烧蚀实验,并利用第一性原理计算了CrW固溶体电子态密度,探讨固溶对电烧蚀性能的影响规律.实验结果表明:球磨时间越长,烧结体CrW的固溶程度越高、平均耐电压强度越高,烧蚀面积越少;计算结果表明,随W固溶度的增大,CrW合金费米能级处电子密度下降,合金稳定性提高.
参考文献
| [1] | 王亚平,张丽娜,丁秉钧,周敬恩.选择性相强化对CuCr触头材料在真空小间隙中耐电压强度的影响[J].中国电机工程学报,1999(03):46-49. |
| [2] | Yang ZM;Zhang QL;Zhang CY;Sun Y;Ding BJ .Influence of microstructure of CuCr25 cathode on the motion of vacuum arc spots[J].Physics Letters, A,2006(1):98-100. |
| [3] | C.Y. Zhang;Y.P. Wang;Z.M. Yang .MICROSTRUCTURE AND PROPERTIES OF CuCr25 ALLOYS WITH DIFFERENT Ni CONTENT[J].Acta metallurgica Sinica,2003(2):151-154. |
| [4] | ZHANG Cheng-yu,WANG Jiang,ZHANG Hui,YANG Zhi-mao,DING Bing-jun.Deoxidization of CuCr25 alloys prepared by vacuum induction melting[J].中国有色金属学会会刊(英文版),2001(03):337-339. |
| [5] | Yang ZM;Zhang QL;Zhang CY;Sun Y;Ding BJ .Influence of microstructure of CuCr25 cathode on the motion of vacuum arc spots[J].Physics Letters, A,2006(1):98-100. |
| [6] | 王立彬,张程煜,丁秉钧.W或C添加剂对优化CuCr25合金显微组织的作用[J].稀有金属材料与工程,2003(01):41-44. |
| [7] | Zhang Chengyu;Ding Bingjun .Effects of additives W and Ni on microstructure and properties of CuCr25 materials[J].International journal of materials & product technology,2004(4):292-299. |
| [8] | Yang Zhiman;Zhang Qiuli;Zhang Chengyu et al.Influence of microstrueture of CuCr25 cathode on the motion of vacuum arc spots[J].Physics Letters A,2006,353(01):98-100. |
| [9] | 姚强,邢辉,孟丽君,孙坚.Ti-Mo合金β结构稳定性和弹性性质的第一性原理研究[J].金属学报,2008(01):19-22. |
| [10] | Tashi Nautiyal;Suk Joo Youn;Kwang S Kim .Effect of dimensionality on the electronic structure of Cu,Ag,and Au[J].Physical Review B,2003,68:033407. |
| [11] | Kr(o)ger J;Limot L;Jensen H et al.Stark effect in Au(111)and Cu(111)sueface states[J].Physical Review B,2004,70:033401. |
| [12] | 帅歌旺,方平,郭正华,卢百平.机械合金化制备Cu-Fe过饱和固溶体及其时效分解[J].材料工程,2008(12):51-54. |
| [13] | 拉弗蒂;程积高.真空电弧理论与应用[M].北京:机械工业出版社,1985 |
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