Optimization of Mixing Speed Parameter for Homogeneous Cu-Sn Composite

Abstract:

The crucial manufacturing process in powder metallurgy (PM) is the mixing process. This process ensures blending sufficiently to achieve a uniform and consistent product. Various mixing parameters provide an impact on product properties and fluency during the mixing process. The mixing speed is the most considered parameter which affects the homogeneity and properties of the PM product. The powder of 89,95% wt Cu and 10%wt Sn was mixed at 14, 22, 30, 38 rpm respectively for 120 minutes using a double cone mixer to obtain homogeneity pow-der mixture at 40% filling rate mixer. The mixed powder was compacted at 700 MPa in the 4-column compacting machine. Green compact product was sintered at 200°C for 20 minutes. Sintered specimens were investigated on densification and hardness test. The microstructure was investigated by SEM/EDX and X-ray diffraction. The result showed that the Cu particle form to flake shape, while the Sn particle tends to form irregular rod-like. Particle size on Cu-Sn composite most being finer along with increasing mixing speed. Homogenously distributed dispersed Cu and Sn particles can be achieved successfully at 30 rpm. Furthermore, the hardness test value was 94,2 HRF. The density was 7,45 g/cm3 and the porosity was 15,19% Particle size decrease to 4.517 μm with increasing mixing speed.

• Periodical: Key Engineering Materials (Volume 939)
• Pages: 49-55
• DOI: https://doi.org/10.4028/p-oc8l05
• Online since: January 2023
• Authors: Widyastuti Widyastuti*, Budi Agung Kurniawan, Raihan Sa'di, Ninik Safrida, Adhy Prihatmiko Wibowo
• Keywords: Composite, Double Cone Mixer, Mixing Speed, Powder Metallurgy

References

[1] M.P. Moran and D.K. Ott, Lead Free Frangible Ammunition Exposure at United States Air Force Small Arms Firing Ranges, in: Defense Technical Information Center Report IOH-RS-BR-TR-2008-0002, (2008).

DOI: 10.21236/ada486864

[2] S. W. Banovic, S. P. Mates, Microscopic fracture mechanisms observed on Cu–Sn frangible bullets under quasi-static and dynamic compression, Journal of Materials Science. 43 (2008) 4840–4848.

DOI: 10.1007/s10853-008-2702-2

[3] E. Salur, A. Aslan, M. Kuntoglu, A. Gunes, and O. S. Sahin, Experimental Study And Analysis Of Machinability Characteristics Of Metal Matrix Composites During Drilling, Composites Part B: Engineering Composites Part B. 166 (2019) 401–413.

DOI: 10.1016/j.compositesb.2019.02.023

[4] O. D. Neikov, Processing of Powders and Processing Equipment, in: Handbook of Non-Ferrous Metal Powders, Frantsevich Institute for Problems of Materials Science (IPMS), Ukraine, (2019).

DOI: 10.1016/b978-0-08-100543-9.00014-2

[5] R. M German, Particulate Composities Fundamental and Application, Springer International, Switzerland, (2016).

[6] M. Alian, , F. Ein-Mozaffari, S. R. Upreti, J. Wu, Using Discrete Element Method To Analyze The Mixing Of The Solid Particles In A Slant Cone Mixer, Chemical Engineering Research And Design. 93 (2015) 318–329.

DOI: 10.1016/j.cherd.2014.07.003

[7] S. Hitesh, M. Swati, J. Darshana, Process Optimization for Double-Cone Blender and Application of Statistics, International Journal of Pharmaceutical Research 3 (4) (2011) 18-23.

[8] W. Chen, J. Wang, S. Wang, P. Chen, J. Cheng, On the processing properties and friction behaviours during compaction of powder mixtures, Materials Science And Technology. (2020) 1–8.

DOI: 10.1080/02670836.2020.1747779

[9] A. Mohammadi, R. Mahmudi, Elevated-Temperature Mechanical Properties of Lead-Free Sn-0.7Cu-xSiC Nanocomposite Solders, Journal of Electronic Materials. 47 (2) (2018) 1721-1730.

DOI: 10.1007/s11664-017-5923-9

[10] A. Wagih, A. Fathy, Experimental Investigation And FE Simulation Of Spherical Indentation On Nano-Alumina Reinforced Copper-Matrix Composite Produced By Three Different Techniques, Advanced Powder Technology. 28 (8) (2017). 1954–(1965).

DOI: 10.1016/j.apt.2017.05.005

[11] T, S Kavithaa, L. Rangaraj, S, S.Avadhani, Significance of Interface Design Aspects and Characteristics in Cu/SiCp Composites Fabricated by the Powder Metallurgy Route, Mettalurgical and Material Tranactions A. (2019).

DOI: 10.1007/s11661-018-5089-y

[12] H. Jakub, Ž. David, J. LUCIE, Z. Jiří, N. Jan, Effect Of Particle Shape And Size On The Compressibility And Bulk Properties Of Powders In Powder Metallurgy, Proceedings 25th Anniversary International Conference on Metallurgy and Materials. (2016) 1394-1399.

[13] G. Y. Jang, J. W. Lee, J. G. Duh, The Nanoindentation Characteristics of Cu6Sn5, Cu3Sn, and Ni3Sn4 Intermetallic Compounds In The Solder Bump, Journal Electronic Materials. 33 (2004) 1103–1110.

DOI: 10.1007/s11664-004-0111-0

[14] G. Grathwohl & R. Warren, The effect of cobalt content on the microstructure of liquid-phase sintered TaC-Co alloys, Materials Science and Engineering. 14 (1) (1974) 55–65.

DOI: 10.1016/0025-5416(74)90123-2

[15] G. K. Gyimah, P. Huang, D. Chen, Dry Sliding Wear Studies of Copper-Based Powder Metallurgy Brake Materials, Journal of Tribology. 136 (2014).

DOI: 10.1115/1.4027477

[16] J. Li, H. Zhang, Y. Zhang, Z. Che, X. Wang.: Microstructure and Thermal Conductivity of Cu/diamond Composites with Ti-coated Diamond Particles Produced By Gas Pressure Infiltration, Journal Alloy Compound. 647 (2015) 941–946.

DOI: 10.1016/j.jallcom.2015.06.062

[17] Kruachatturat, Sintering Cu-Sn Materials for Frangible Bullets, The 3rd Thailand Metallurgical Conference, Bangkok, Thailand, (2009).

[18] X. S. Bui, J. Komenda, and R. Vitek, Frangibility Quantification of Frangible Bullet upon Impact on a Hard Target, Defence Science Journal. 71 (2) (2021) 171-176.

DOI: 10.1109/miltechs.2017.7988721