采用化学包裹法制备MoSi2/Cu复合粉体,研究MoSi2/Cu包裹粉体的物相组成、颗粒形貌及包裹粉体的热稳定性.结果表明:复合粉体的主要物相组成为Cu、MoSi2及自发氧化生成的Cu2O;包裹颗粒呈椭球形的蛋状结构,包裹层厚度为150-400 nm,包裹效果较好;在氧气炉中于950℃煅烧1 h后,复合粉体主要物相为Cu和MoSi2,强化相MoSi2未与基体Cu发生反应.DSC分析表明:1 000℃以下复合粉体中只有Cu2Cl(OH)3和Cu2O的分解反应,复合粉体具有较好的热稳定性.
参考文献
| [1] | 贾燕民,丁秉钧.制备弥散强化铜的新工艺[J].稀有金属材料与工程,2000(02):141-143. |
| [2] | 程建奕,汪明朴,李周,郭明星,曹先杰.Cu-Al2O3纳米弥散强化铜合金的短流程制备工艺及性能[J].材料科学与工艺,2005(02):127-130,134. |
| [3] | Baohong Tian;Ping Liu;Kexing Song .Microstructure and properties at elevated temperature of a nano-Al_2O_3 particles dispersion-strengthened copper base composite[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2006(0):705-710. |
| [4] | 郭明星,汪明朴,李周,曹玲飞,程建奕.原位复合法制备纳米粒子弥散强化铜合金研究进展[J].机械工程材料,2005(04):1-3. |
| [5] | JOANNA G .Heat-resistant dispersion-strengthened copper alloys[J].Journal of Materials Engineering and Performance,1992,1(01):113-121. |
| [6] | 贾淑果,刘平,郑茂盛,任凤章,田保红,周根树.铜合金固溶强化的电子理论解释[J].中国有色金属学报,2008(08):1522-1526. |
| [7] | 王海龙,张锐,王西科,郭景坤,许红亮,卢红霞,盛书红.Cu包裹SiC复合粉体工艺的研究[J].硅酸盐学报,2004(04):398-401. |
| [8] | MICHAL B;IVAN J;KOVAC L .Influence of panicles in Cu-Al2O3 system on fracture mechanism[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2001,319/321:667-670. |
| [9] | M. S. Motta;P. K. Jena;E. A. Brocchi;I. G. Solorzano .Characterization of Cu-Al_2O_3 nano-scale composites synthesized by in situ reduction[J].Materials science & engineering, C. Biomimetic and supramolecular systems,2001(1/2):175-177. |
| [10] | SONG Ke-xing;XING Jian-dong;DONG Qi-ming;LIU Ping .Optimization of the processing parameters during internaloxidation of Cu-Al alloy powders using an artificial neuralnetwork[J].Materials & Design,2005,26:337-341. |
| [11] | 张运;武建军;李国彬;申玉田 雷迁权 .铜铝合金的内氧化[J].材料科学与工艺,1999,7(02):91-95. |
| [12] | Dai HB;Li HX;Wang FH .An alternative process for the preparation of Cu-coated mica composite powder[J].Surface & Coatings Technology,2006(6):2859-2866. |
| [13] | M. Zakeri;R. Yazdani-Rad;M. H. Enayati .Synthesis of nanocrystalline MoSi_2 by mechanical alloying[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2005(1/2):258-261. |
| [14] | 马勤,阎秉钧,康沫狂.金属硅化物的应用与发展[J].稀有金属材料与工程,1999(01):10-13. |
| [15] | VASUDEVAN A K;PETROVIC J J .Comparative overview of molybdenum disilicide composites[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,1992,155(1/2):1-17. |
| [16] | PETROVIC J J .Toughening strategies for MoSi2-based high-temperature structural silicides[J].Intermetallics,2000,8(9/11):1175-1182. |
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%