采用液相包裹法对亚微米Al2O3颗粒表面进行稀土氧化物Y2O3改性.通过表面改性前后颗粒增强Al基复合材料制备过程中,Al熔体在颗粒间渗透压力的变化,研究了颗粒表面Y2O3改性前后与Al熔体间界面润湿性的变化;同时利用真空座滴法对界面润湿性的变化进行了评定.结果表明:Al熔体在表面经Y2O3改性的Al2O3颗粒中的渗透压较改性前显著降低;颗粒表面改性后与Al熔滴间的接触角明显减少且与颗粒表面Y2O3包裹程度有关;说明颗粒表面经Y2O3改性后与Al基体间的润湿性得到了明显的改善,且6061Al较2024Al对Al2O3颗粒具有更好的润湿效果;其改善的主要原因是Y2O3与基体Al发生了界面反应,体系产生了反应润湿的结果.
参考文献
| [1] | EUSTATHOPOULOS N;Chatain D;Coudurier L .Wetting and interfacial chemistry in liquid metal-ceramic systems[J].Materials Science and Engineering A,1991,135:83-88. |
| [2] | D. D. L. Chung .Interface engineering for cement-matrix composites[J].Composite interfaces,2001(1):67-81. |
| [3] | Vedani M;Gariboldi E;Gregorio C D .Influence of interface properties on mechanical behaviour of particle reinforced metal matrix composite[J].Materials Science and Technology,1994,10(01):32-39. |
| [4] | Kobashi M T;Choh T .The wettability and the reaction for SiC particle/Al alloy system[J].Journal of Materials Science,1993,28:684-690. |
| [5] | Kyung Ku Lee;Chang Seog Kang;Doh Jae Lee .Wetting behavior of metal coated SiC/Al composite[J].日本金属学会誌,2000(1):27-33. |
| [6] | C. A. LEON;R. A. L. DREW .Preparation of nickel-coated powders as precursors to reinforce MMCs[J].Journal of Materials Science,2000(19):4763-4768. |
| [7] | BAIK K H;Lee G C;Ahn S.Interface of Co coating/Al 203 fiber and tensile behavior in a aluminium composite[A].Pohang,Korea:Pohang University of Science and Technology,1993:773-776. |
| [8] | K.Das;S.Das .Diffusional reactions during processing of TIMETAL 21S/Al2O3 composites[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,1999(5):1437-1447. |
| [9] | 于志强,武高辉,孙东立,姜龙涛.Al2O3微粉的表面改性及表征[J].无机材料学报,2003(06):1250-1254. |
| [10] | 武高辉 .金属基复合材料制备技术[P].CN X94114284,1994-05-20. |
| [11] | Fujii H;Nakae H;Okada K .Four wetting phases in AlN/Al and AlN composites/Al systems,models of nonreactive,reactive,and composite systems[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1993,24:1391-1397. |
| [12] | Garcla-cordovilla C;Louis E;Pamies A .The surface tension of liquid pure aluminium and aluminium-magnesium alloy[J].Journal of Materials Science,1986,21:2787. |
| [13] | Park S H;Hur B Y;Kim S Y.A study on the viscosity and surface tension for Al foaming and the effects of addition elements[A].Gyeongju:The Korea Foundrymens Society,2002:515-518. |
| [14] | Zhiqiang Yu;Gaohui Wu;Dongli Sun .Rare-earth oxide coating for sub-micro particulates reinforced aluminum matrix composites[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2003(1/2):61-66. |
| [15] | 潘复生;张静;陈晖 .稀土对Al-Zn-Mg-Cu/Al2O3陶瓷界面润湿性的影响[J].复合材料学报,1998,15(01):46-51. |
| [16] | G. Rosazza Prin;T. Baffie;M. Jeymond;N. Eustathopoulos .Contact angles and spreading kinetics of Al and Al-Cu alloys on sintered AlN[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(1/2):34-43. |
| [17] | Lartent V;Chatain D .Wettability of monocrystalline alumina by aluminium between its melting point and 1273 K[J].Acta Materialia,1988,36:1797-1803. |
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%