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Researchers at the Mechanical Engineering Department of Tehran University succeeded in synthesizing a cu-based nanocomposite utilizing a new method.
"In this research, we added silicon carbide powder of micro and nanoscales to copper by means of friction stir processing in order to reinforce its strength and resistance to surface erosion. The effects of reinforcing powder size and volumetric percent of the added powder on the grain size, strength, tensile and erosive properties of copper were also investigated", Parviz Asadi, one of the researchers, told the Iran Nanotechnology Initiative Council.
Elaborating on the method applied in this research, he said, "Although the synthesis of this nanocomposite is possible by conventional methods like sintering, casting etc, we took a surface/volume approach for the synthesis of metal-based nanocomposites which is applicable in certain sections or the whole area of the parts."
"It is possible to increase the strength base and resistance to erosion up to 3 times and 10 times respectively with respect to the material substance. It is also possible to give properties such as semi conduction or other physical properties to the desired material with regard to its application," he added, explaining about the results of the study.
"One of the advantages of this method is that it enables producing surface nanocomposite for specific parts to provide the properties required for a specific application. Other advantages include low energy and time demand for the synthesis of nanocomposite, eliminating the need to operator's specialization and skillfulness, process facilitation, simple, low-cost and environmentally sustainable equipments," Asadi concluded.
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