制备不同Zn含量的Sn-Zn系合金粉末,分别在室温和120 ℃下进行合金氧化实验,用质量增加测量法考察合金氧化动力学行为,用XRD检测氧化产物的物相,并测量向熔融松香中加入不同量的ZnO时体系的黏度随时间的变化.结果表明:固态Sn-Zn合金的氧化产物为SnO2和ZnO,并呈现致密氧化膜的特征;Sn-Zn合金的氧化速率随着Zn含量的增加而加快.过量的ZnO可使松香发生稠化.根据以上结果提出,在钎焊过程中ZnO导致的使松香助焊剂局部稠化失效以及包覆熔体表面的ZnO膜的机械阻碍作用是Sn-Zn系无铅焊料润湿性差的主要原因.
参考文献
| [1] | Rashed Adnan Islam;Y.C. Chan;W. Jillek;Samia Islam .Comparative study of wetting behavior and mechanical properties (microhardness) of Sn-Zn and Sn-Pb solders[J].Microelectronics journal,2006(8):705-713. |
| [2] | SUGANUMA K .Advances in lead-free electronic soldering[J].Current Opinion on Solid State Materials Science,2001,5(01):55-64. |
| [3] | ABTEW M;SELVADURAY G .Lead-free solders in microelectronics[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2000,27(01):85-141. |
| [4] | SOMORIJAI G A.Introduction to surface chemistry and catalysis[M].New York:Wiley-Intersience,1994:170-181. |
| [5] | 徐艳坤,李作安,袁文霞,曹战民,孙勇,乔芝郁.Sn-Zn基低温无铅钎料合金的表面性质研究[J].自然科学进展,2005(06):719-725. |
| [6] | 任晓雪,李明,毛大立.合金元素对Sn-Zn基无铅钎料高温抗氧化性的影响[J].电子元件与材料,2004(11):40-44. |
| [7] | Wei Xiuqin,Huang Huizhen,ZHOU Lang,Zhang Meng.Effect of Microalloying on Wettability, Oxidation and Solidification Morphology of Sn-9Zn Alloy[J].稀土学报（英文版）,2005(02):220-223. |
| [8] | C.M.L.Wu;C.M.T.Law;D.Q.Yu;L.Wang .The Wettability and Microstructure of Sn-Zn-RE Alloys[J].Journal of Electronic Materials,2003(2):63-69. |
| [9] | 于大全,赵杰,王来.稀土元素对Sn-9Zn合金润湿性的影响[J].中国有色金属学报,2003(04):1001-1004. |
| [10] | Suganuma K.;Shoutoku T.;Nakamura Y.;Niihara K. .Wetting and interface microstructure between Sn-Zn binary alloys and Cu[J].Journal of Materials Research,1998(10):2859-2865. |
| [11] | H.Z. Huang,X.Q. Wei,L. Zhou,X.D. Liu,G.L. Guo.EFFECTS OF Zn CONCENTRATION ON WETTABILITY OF Sn-Zn ALLOY ON Cu AND ON THE INTERFACIAL MICROSTRUCTURE BETWEEN Sn-Zn ALLOY AND Cu[J].金属学报（英文版）,2006(04):251-257. |
| [12] | 魏秀琴 .亚共晶Sn-Zn合金无铅电子焊料研究[D].南昌大学,2006. |
| [13] | Jian Zhou;Yangshan Sun;Feng Xue .Properties of low melting point Sn-Zn-Bi solders[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2005(1/2):260-264. |
| [14] | 吴炳乾.稀土冶金学[M].长沙:中南工业大学出版社,1997 |
| [15] | 黄希祜.钢铁冶金原理[M].北京:冶金工业出版社,2002 |
| [16] | LIN K L;LIU T P .High-temperature oxidation of a Sn-Zn-Al solder[J].Oxidation of Metals,1998,50(3/4):255-267. |
| [17] | BRIAN P;LAMB F;CLIFTON B V.Polyester V.2 (unsaturated polyesters & polyester plasticizers)[M].London:Iliffe Books Ltd,1967 |
| [18] | LEES N C.Reflow soldering processes and troubleshooting[M].Boston:Newnes,2001 |
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