http://repository.iitr.ac.in/handle/123456789/13033| Title: | Structural investigation of vacuum sintered Cu-Cr and Cu-Cr-4% SiC nanocomposites prepared by mechanical alloying |
| Authors: | Sahani P. Mula, Suhrit Roy P.K. Kang P.C. Koch C.C. |
| Published in: | Materials Science and Engineering A |
| Abstract: | Attempts have been made to synthesize Cu99Cr1, Cu94Cr6, Cu99Cr1-4% SiC and Cu94Cr6-4% SiC (∼30nm) nanocomposites for thermo-electric applications. The blend compositions were ball-milled for 50h in a stainless steel grinding media. The microstructural features were characterized by X-ray diffraction (XRD), Nano zeta sizer, Fourier transforms infrared radiation, scanning electron microscopy (SEM) and atomic force microscopy (AFM). Analysis of crystallite size, lattice microstrain and lattice parameter of Cu revealed that the dissolution of Cr increased up to 1at.% in presence of nanosize SiC particles during milling. The compact specimens were subjected to vacuum sintering (900°C and 1000°C for 1h), and the results were compared with that of microwave sintered samples. The mechanical properties like Vickers hardness and electrical conductivity of the sintered specimens were also investigated. © 2011 Elsevier B.V. |
| Citation: | Materials Science and Engineering A (2011), 528(25-26): 7781-7789 |
| URI: | https://doi.org/10.1016/j.msea.2011.06.086 http://repository.iitr.ac.in/handle/123456789/13033 |
| Issue Date: | 2011 |
| Keywords: | Atomic force microscopy Electrical conductivity Electron microscopy Hardness Mechanical alloying X-ray diffraction |
| ISSN: | 9215093 |
| Author Scopus IDs: | 37093758100 12783902100 57189687153 7007182376 57203364844 |
| Author Affiliations: | Sahani, P., Department of Metallurgical and Materials Engineering, N.I.T. Rourkela, 769008 Orissa, India Mula, S., Department of Metallurgical and Materials Engineering, N.I.T. Rourkela, 769008 Orissa, India, Department of Materials Science and Engineering, NC State University, Raleigh, NC 27695, United States Roy, P.K., CG Global R and D Center, Crompton Greaves Ltd., Mumbai 400042, India Kang, P.C., Department of Materials Science and Engineering, NC State University, Raleigh, NC 27695, United States, Materials Science and Engineering School, Harbin Institute of Technology, P.O.B. 433, Harbin 150001, China Koch, C.C., Department of Materials Science and Engineering, NC State University, Raleigh, NC 27695, United States |
| Corresponding Author: | Mula, S.; Department of Materials Science and Engineering, NC State University, Raleigh, NC 27695, United States; email: smula@ncsu.edu |
| Appears in Collections: | Journal Publications [MT] |
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