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Open AccessArticle

The Influence of Wire Electrical Discharge Machining Cutting Parameters on the Surface Roughness and Flexural Strength of ZrO2/TiN Ceramic Nanocomposites Obtained by Spark Plasma Sintering

1
Moscow State University of Technology “STANKIN”, Vadkovsky per. 1, Moscow 127055, Russian
2
Instituto de Ciencia de Materiales de Madrid (ICMM), Consejo Superior de Investigaciones Científicas (CSIC), C/Sor Juana Inés de la Cruz 3, 28049 Madrid, Spain
*
Authors to whom correspondence should be addressed.
Nanomaterials 2019, 9(10), 1391; https://doi.org/10.3390/nano9101391
Received: 2 August 2019 / Revised: 17 September 2019 / Accepted: 26 September 2019 / Published: 28 September 2019
In this work, we characterized the mechanical and electrical properties of zirconia-based ceramic nanocomposites reinforced with 30 and 40 vol. % TiN and fabricated by spark plasma sintering. In addition to their improved mechanical performance, these compositions have sufficient electrical conductivity to allow wire electrical discharge machining (WEDM). The influence of WEDM variables on the roughness and the mechanical strength of samples was analyzed after each cut. The experimental results showed that the roughness of machined surfaces can be reduced by variations in WEDM manufacturing regimes, and, consequently, a drastic drop in flexural strength of workpieces can be avoided. Furthermore, the composites with higher content and homogeneous distribution of the conductive phase exhibited better surface quality as well. View Full-Text
Keywords: ceramic nanocomposites; spark plasma sintering (SPS); mechanical properties; wire electrical discharge machining (WEDM); electrical conductivity; surface quality ceramic nanocomposites; spark plasma sintering (SPS); mechanical properties; wire electrical discharge machining (WEDM); electrical conductivity; surface quality
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MDPI and ACS Style

Smirnov, A.; Seleznev, A.; Solís Pinargote, N.W.; Pristinskiy, Y.; Peretyagin, P.; Bartolomé, J.F. The Influence of Wire Electrical Discharge Machining Cutting Parameters on the Surface Roughness and Flexural Strength of ZrO2/TiN Ceramic Nanocomposites Obtained by Spark Plasma Sintering. Nanomaterials 2019, 9, 1391.

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