Electrochemical Surface Modification of Aluminum Sheets Prepared by Powder Metallurgy and Casting Techniques for Printed Circuit Applications

  • Hossam M. YehiaEmail author
  • Omayma A. Elkady
  • Y. Reda
  • K. E. Ashraf
Technical Paper


Two series of Al sheets are coated with different thicknesses of copper-deposited film from 10 to 40 µm by the electroplating technique. The first group is the fresh cast Al sheets, and the other is the recycled water-atomized Al powder prepared by the technique of powder metallurgy. Microstructure and phase structure were examined by XRD, optical microscopy and FESEM. Electrical conductivity, thermal conductivity and coefficient of thermal expansion (CTE) were investigated. The XRD showed that only Al and Cu peaks appeared for the cast Al sheet samples, but for the recycled ones other peaks corresponding to Al2O3 were also detected. The microstructure indicated that the coated Cu layer had a dendritic structure in a continuous pattern, but for the recycled samples the dendritic structure was not clear but continuous. Both the thermal and electrical conductivities were gradually increased along with the increase in the Cu thickness, while the CTE was decreased.


Electroplating Aluminum Copper deposition Sodium potassium tartrate Coefficient of thermal expansion (CTE) Water atomization, Aluminum circuit board 



The authors wish to thank the researchers and the technicians of the Central Metallurgical R&D Institute (CMRDI) in Helwan, Faculty of Industrial Education—Helwan University, Cairo, Egypt—and CAMC for their cooperation.


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Copyright information

© The Indian Institute of Metals - IIM 2018

Authors and Affiliations

  1. 1.Production Technology, Faculty of Industrial EducationHelwan UniversityCairoEgypt
  2. 2.Powder Technology Division, Manufacturing DepartmentCentral Metallurgical R&D Institute (CMRDI)P. O. BOX 87 Helwan, 11421 CairoEgypt
  3. 3.Chemical Engineering DepartmentHigher Institute of Engineering and TechnologyNew DamiatteEgypt
  4. 4.Lap of NanotechnologyElectronic Research InstituteDokki, CairoEgypt

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