INVESTIGATION OF FORMATION OF STRUCTURE AND PROPERTIES IN Cu– Ti3SiC2 SYSTEM
https://doi.org/10.17073/1997-308X-2016-4-60-67
Abstract
The study covers the formation of structure and properties during infiltration, pressureless and spark plasma sintering in Cu – (12,5÷37,5 vol.%) Ti3SiC2 powder materials using electron microscopy, X-ray phase and energy dispersive analysis methods. The paper determines the independence of composite material (CM) phase composition from the sintering method and the temperature within 900–1200 °C. Special aspects of CM structure formation during sintering include deintercalation of silicon from titanium carbosilicide, formation of a solid carbon solution based on titanium silicide Ti5Si3(С), small amounts of titanium carbide, silicon carbide and silicide TiSi2. The increased concentration of Ti3SiC2 in CM leads to a certain decrease in electrical conductivity, but also to a significant increase in hardness, strength and wear resistance of the electroerosion electrode composites for EDM.
About the Authors
S. A. Oglezneva
Perm National Research Polytechnic University
Russian Federation
Dr. Sci. (Tech.), prof., Department of materials, technology and design of machines, Perm National Research Polytechnic University, scientific head of the Centre of powder material science
Russian Federation
Dr. Sci. (Tech.), prof., Department of materials, technology and design of machines, Perm National Research Polytechnic University, scientific head of the Centre of powder material science
M. N. Kachenyuk
Perm National Research Polytechnic University
Russian Federation
Cand. Sci. (Tech.), associate prof., Department of materials, technology and design of machines
Russian Federation
Cand. Sci. (Tech.), associate prof., Department of materials, technology and design of machines
N. D. Ogleznev
Perm National Research Polytechnic University
Russian Federation
Cand. Sci. (Tech.), senior lecturer, Department of materials, technology and design of machines
Russian Federation
Cand. Sci. (Tech.), senior lecturer, Department of materials, technology and design of machines
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Review
For citations:
Oglezneva S.A., Kachenyuk M.N., Ogleznev N.D. INVESTIGATION OF FORMATION OF STRUCTURE AND PROPERTIES IN Cu– Ti3SiC2 SYSTEM. Powder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya). 2016;(4):60-67. (In Russ.) https://doi.org/10.17073/1997-308X-2016-4-60-67
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