Fabrication of Nanostructured Cu matrix Nanocomposites by High Energy Mechanical Milling and Spark Plasma Sintering


Department of Materials Engineering, University of Maragheh


Spark plasma sintering (SPS) is a sintering process that is capable of sintering hard worked powders in short times. This technique was used to fabricate bulk Cu and Cu-SiC nanocomposites. Pure Cu and mixed powders of Cu including 4 vol% of SiC nanoparticles were mechanically alloyed for 25 h and sintered at 750˚C under vacuum condition by SPS method. Microstructures of the materials were characterized using optical and scanning electron microscopes and x-ray diffraction patterns, and mechanical properties were evaluated by micro hardness tests. The results showed density values of 8.69 and 8.30 g/cm3 and hardness values over 105 and 128Hv for Cu and its nanocomposite respectively. The addition of nanoparticles retarded Cu matrix grain growth during SPS process and resulted in higher hardness of nanocomposite compared to non-reinforced copper.


Main Subjects

1. Chi F, Schmerling M, Eliezer Z, Marcus HL, Fine ME. Preparation of Cu-TiN alloy by external nitridation in combination with mechanical alloying. Materials Science and Engineering: A. 1995;190:181-6.
2. Akbarpour MR, Salahi E, Alikhani Hesari F, Kim HS, Simchi A. Effect of nanoparticle content on the microstructural and mechanical properties of nano-SiC dispersed bulk ultrafine grained Cu matrix composites. Materials & Design. 2013;52:881-7.
3. Akbarpour MR, Salahi E, Hesari FA, Yoon EY, Kim HS, Simchi A. Microstructural development and mechanical properties of nanostructured copper reinforced with SiC nanoparticles. Materials Science and Engineering: A. 2013;568:33-9.
4. Suryanarayana C. Synthesis of nanocomposites by mechanical alloying. Journal of Alloys and Compounds. 2011;509, Supplement 1:S229-S34.
5. Suryanarayana C. Mechanical alloying and milling. Progress in Materials Science. 2001;46:1-184.
6. Aliyu IK, Saheb N, Hassan SF, Al-Aqeeli N. Microstructure and Properties of Spark Plasma Sintered Aluminum Containing 1 wt.% SiC Nanoparticles. Metals. 2015;5:70-83.
7. Zhang ZH, Wang FC, Wang L, Li SK. Ultrafine-grained copper prepared by spark plasma sintering process. Materials Science and Engineering: A. 2008; 476: 201-205.
8. Sule R, Olubambi P A, Sigalas I, Asante J K O, Garrett J C. Effect of SPS consolidation parameters on submicron Cu and Cu–CNT composites for thermal management. Powder Technology. 2014; 258: 198-205.
9. ASTM B962-15, Standard Test Methods for Density of Compacted or Sintered Powder Metallurgy (PM) Products Using Archimedes’ Principle, ASTM International, West Conshohocken, PA, 2015, www.astm.org.
10. ASTM E384-11e1, Standard Test Method for Knoop and Vickers Hardness of Materials , ASTM International, West Conshohocken, PA, 2011, www.astm.org.
11. Akbarpour MR, Salahi E, Alikhani Hesari F, Simchi A, Kim HS. Microstructure and compressibility of SiC nanoparticles reinforced Cu nanocomposite powders processed by high energy mechanical milling. Ceramics International. 2014;40:951-60.
12. Dudina DV, Lomovsky OI, Valeev KR, Tikhov SF, Boldyreva NN, Salanov AN, et al. Phase evolution during early stages of mechanical alloying of Cu–13 wt.% Al powder mixtures in a high-energy ball mill. Journal of Alloys and Compounds. 2015;629:343-50.
13. Fang Q, Kang Z. An investigation on morphology and structure of Cu–Cr alloy powders prepared by mechanical milling and alloying. Powder Technology. 2015;270, Part A:104-11.
14. Razavi Hesabi Z ,Hafizpour HR, Simchi A. An investigation on the compressibility of aluminum/nano-alumina composite powder prepared by blending and mechanical milling. Materials Science and Engineering: A. 2007;454–455:89-98.
15. Williams KG, Hall HW. X-ray line broadening from filed aluminum and wolfram. Acta Metall. 1953;1:22–31.
16. Novikov VY. Microstructure stabilization in bulk nanocrystalline materials: Analytical approach and numerical modeling: To the 60th anniversary of the Zener treatment of particle impact on grain growth. Materials Letters. 2008;62:3748-50.
17. Kim KT, Cha SI, and Hong SH, “Hardness and wear resistance of carbon nanotube reinforced Cu matrix nanocomposites,” Materials Science and Engineering: A, vol. 449–451, pp. 46-50, 2007.
18. Huang JL, Nayak PK. 10 - Strengthening alumina ceramic matrix nanocomposites using spark plasma sintering. In: Low IM, editor. Advances in Ceramic Matrix Composites: Woodhead Publishing; 2014. p. 218-34.
19. Jamaati R, Toroghinejad MR, Amirkhanlou S, Edris H. Strengthening mechanisms in nanostructured interstitial free steel deformed to high strain. Materials Science and Engineering: A. 2015;639:656-62.
20. Zhang Z, Chen DL. Contribution of Orowan strengthening effect in particulate-reinforced metal matrix nanocomposites.Materials Science and Engineering: A. 2008;483–484:148-52.