铝在B4C陶瓷上的润湿性
Wettability of Al on B4C Substrate
摘 要
运用座滴法研究了纯铝及铝-钛合金在B4C陶瓷基体上的润湿性,用扫描电镜(SEM)、能谱仪(EDS)和X射线衍射仪(XRD)分析了B4C/(Al-Ti)的界面特性,讨论了提高温度和添加钛对B4C/Al体系润湿性的影响.结果表明:提高温度能使体系的接触角减小;合金元素钛的添加使接触角进一步减小,与纯铝相比,铝-钛合金在1 200 ℃和1 300 ℃时均与B4C形成接近0°的接触角,显著改善了润湿性;在B4C陶瓷和合金之间存在反应层,主要有AlB12C2、TiB2和TiC,正是钛与B4C发生的界面反应才使B4C/Al体系的润湿性得到改善.
铝
座滴法
润湿性
B4C
Al
sessile-drop method
wettability
Abstract
The wettability of Al on B4C substrate was studied by using the sessile-drop method,and the interfacial characteristics of B4C/(Al-Ti)were investigated by scanning electron microscopy,energy dispersive analysis of X-rays and X-ray diffraction.Based on the experiments,the effects of temperature and Ti on the wettability of Al on B4C substrate were discussed.The results show that the contact angle (θ) reduces continuously with the increase of temperature and decreases definitely with the addition of Ti.Ti could effectively improve the wettability,and compared with pure Al,the contact angle of B4C/(Al-Ti) at 1 200 ℃ and 1 300 ℃ could be decreased to near 0°.There is a reaction layer in the interface of Al and B4C,and the main products are AlB12C2,TiB2 and TiC and the wettability of the system could be promoted by the reaction of Ti and B4C.
中图分类号 TQ174 TU512.4
所属栏目
基金项目 总装备部重点基金资助项目(6140505)
收稿日期 2007/4/14
修改稿日期 2008/1/10
网络出版日期
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备注王希军(1979-),男,河南安阳人,硕士研究生.
引用该论文: WANG Xi-jun,MA Nan-gang,DING Hua-dong,FU Su-li,WENG Zhe,FANG Yuan. Wettability of Al on B4C Substrate[J]. Materials for mechancial engineering, 2008, 32(5): 15～19
王希军,马南钢,丁华东,傅苏黎,翁哲,方圆. 铝在B4C陶瓷上的润湿性[J]. 机械工程材料, 2008, 32(5): 15～19
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参考文献
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【2】陈建,潘复生.合金元素影响铝/陶瓷界面润湿性的研究现状[J].兵器材料科学与工程,1999,22(4):53-58.
【3】李戈扬.铝液在Al2O3上润湿性的改善[J].材料工程,2000(4):11-13.
【4】张雄飞.液态铝与陶瓷的润湿性改变机理[J].粉末冶金技术,2003,21(1):42-45.
【5】陈建,潘复生.氧化铝膜对铝基复合材料润湿行为的影响[J].材料科学与工程,1999,17(2):85-90.
【6】Ho H N,Wu S T.The wettability of molten aluminum on sintered aluminum nitride substrate[J].Materials Science and Engineering A,1998,248:120-124.
【7】Ksiazek M,Sobczak N,Mikulowski B.Wetting and bonding strength in Al/Al2O3 system[J].Materials Science and Engineering A,2002,324:162-167.
【8】刘静安.铝合金材料的应用与技术开发[M].北京:冶金工业出版社,2004.
【9】Jinkwan Jung,Shinhoo Kang.Advances in manufacturing boron carbide-aluminum composites[J].Journal of American Ceramic Society,2004,87(1):47-54.
【10】Pyzik A J,Beaman D R.Al-B-C phase development and effects on mechanical properties of B4C/Al-derived composites[J].Journal of American Ceramic Society,1995,78(2):305-312.
【11】Halverson D C,Pyzik A J,Aksay I A.Processing of boron carbide-aluminum composites[J].Journal of American Ceramic Society,1989,72(5):775-780.
【12】Kouzeli M,Marchi C S,Mortensen A.Effect of reaction on the tensile behavior of infiltrated boron carbide-aluminum composites[J].Materials Science and Engineering A,2002,337:264-273.
【13】Viala J C,Bouix J.Chemical reactivity of aluminum with boron carbide[J].Journal of Materials Science,1997,32:4559-4573.
【14】Arslan G,Kara F,Turan S.Quantitative X-ray diffraction analysis of reactive infiltrated boron carbide-aluminum composites[J].Journal of the European Ceramic Society,2003,23:1243-1255.
【15】唐建新.Ti-B4C反应机理和扩散路径的研究[J].无机材料学报,2000,15(5):884-889.
【16】Aizenshtein M,Froumin N.Interface interaction and wetting behaviour in B4C/(Me-Ti) systems (Me=Cu,Ag,Sn and Au)[J].Materials Science and Engineering A,2005,395:180-185.
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