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Silver Tin Copper (Ag-Sn-Cu) Powder Coating on Aluminum Substrate and Teeth Using High Pressure Cold Spray

Silver Tin Copper (Ag-Sn-Cu) Powder Coating on Aluminum Substrate and Teeth Using High Pressure Cold Spray

Syed Roohullah Jan1, Kareem Akhtar2*, Uroosa1, Muhammad Zeeshan Zahir3, Abdul Shakoor4

1Mechanical Engineering UBC, Vancouver, Canada; 2ESM, Virginia Tech, Blacksburg Virginia, USA; 3School of Mechanical Engineering, Hanyang University, Seoul, Republic of Korea; 4Department of  Materials, LoughboroughUniversity, Loughborough, UK.

*Correspondence: Kareem Akhtar, ESM, Virginia Tech, Blacksburg Virginia, USA; Email: 


Coatings generated using traditional methods undergo oxidation and contamination problems. Cold spray is recently used to obtain pure coatings without oxidation. In this work coatings of Ag-Sn-Cu powder are achieved on the Aluminum substrate and human teeth, using the high-pressure cold spray technique. The powder when mixed with Mercury is called amalgam and is commonly used in dental applications for cavity filling. However, Mercury is health hazardous. In the present study coating of Ag-Sn-Cu is achieved through cold spray without adding mercury. The particle size and morphology of Ag-Sn-Cu powder are studied, before and after coatings. Hardness tests are carried out to determine surface hardness before and after the coatings. This study reveals that uniform composite coating of Ag-Sn-Cu can be achieved without Mercury using the cold spray. Hence cold spray technique can be used in the future for filling cavities and other dental applications.  

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Pakistan Journal of Zoology


Pakistan J. Zool., Vol. 56, Iss. 2, pp. 503-1000


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