Influence of chromium in nanocrystalline copper–chromium pseudoalloy on its structure and properties


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Abstract

Copper-based nanocomposite pseudoalloys with a chromium content of 25 to 45 wt % have been obtained via the spark plasma sintering. The treatment of powder blends with various chromium contents in the planetary mills is found to cause pronounced changes in the electrical and mechanical properties of materials. The electric resistance of materials with the increasing amount of chromium exhibits the nonlinear rise. This dependence is also correlated with the size of sintered granules, unlike the dependence of hardness, which linearly increases with the increasing chromium concentration (i.e., with the enlarging interfaces).

About the authors

K. V. Kuskov

National Research Technological University MISiS

Author for correspondence.
Email: kkuskov@gmail.com
Russian Federation, Moscow, 119991

A. S. Sedegov

National Research Technological University MISiS

Email: kkuskov@gmail.com
Russian Federation, Moscow, 119991

A. P. Novitskii

National Research Technological University MISiS

Email: kkuskov@gmail.com
Russian Federation, Moscow, 119991

A. A. Nepapushev

National Research Technological University MISiS

Email: kkuskov@gmail.com
Russian Federation, Moscow, 119991

D. O. Moskovskikh

National Research Technological University MISiS

Email: kkuskov@gmail.com
Russian Federation, Moscow, 119991

N. F. Shkodich

National Research Technological University MISiS; Institute of Structural Macrokinetics and Material Sciences Problems

Email: kkuskov@gmail.com
Russian Federation, Moscow, 119991; Chernogolovka, Moscow oblast, 142432

A. S. Rogachev

National Research Technological University MISiS; Institute of Structural Macrokinetics and Material Sciences Problems

Email: kkuskov@gmail.com
Russian Federation, Moscow, 119991; Chernogolovka, Moscow oblast, 142432

A. S. Mukasyan

National Research Technological University MISiS; University of Notre Dame

Email: kkuskov@gmail.com
Russian Federation, Moscow, 119991; Notre Dame, IN, 46556

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