Structure and characteristics of functional powder composite materials obtained by spark plasma sintering

5th International Scientific Workshop on "Advanced Technologies of Materials Field-Assisted Consolidation"

Oglezneva, S.A.^1 ; Kachenyuk, M.N.^1 ; Kulmeteva, V.B.^1 ; Ogleznev, N.B.^1

Science Center of Powder Material Science, Perm National Research Polytechnic Univercity, 6 Professora Pozdeeva street, Perm

614013, Russia^1

关键词: Carbon Nanostructures;    Carbon structures;    Ceramic composite materials;    Electrotechnical;    Erosion resistance;    Powder material;    Relative density;    Sintering temperatures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/218/1/012014/pdf
DOI  :  10.1088/1757-899X/218/1/012014

来源: IOP

【 摘 要 】

The article describes the results of spark plasma sintering of ceramic materials based on titanium carbide, titanium carbosilicide, ceramic composite materials based on zirconium oxide, strengthened by carbon nanostructures and composite materials of electrotechnical purpose based on copper with addition of carbon structures and titanium carbosilicide. The research shows that the spark plasma sintering can achieve relative density of the material up to 98%. The effect of sintering temperature on the phase composition, density and porosity of the final product has been studied. It was found that with addition of carbon nanostructures the relative density and hardness decrease, but the fracture strength of ZrO2increases up to times 2. The relative erosion resistance of the electrodes made of composite copper-based powder materials, obtained by spark plasma sintering during electroerosion treatment of tool steel exceeds that parameter of pure copper up to times 15.